Uses of Class
java.lang.Object

Packages that use Object

Package	Description
java.applet	Provides the classes necessary to create an applet and the classes an applet uses to communicate with its applet context.
java.awt	Contains all of the classes for creating user interfaces and for painting graphics and images.
java.awt.color	Provides classes for color spaces.
java.awt.datatransfer	Provides interfaces and classes for transferring data between and within applications.
java.awt.desktop	Provides interfaces and classes for interaction with various desktop capabilities.
java.awt.dnd	Drag and Drop is a direct manipulation gesture found in many Graphical User Interface systems that provides a mechanism to transfer information between two entities logically associated with presentation elements in the GUI.
java.awt.event	Provides interfaces and classes for dealing with different types of events fired by AWT components.
java.awt.font	Provides classes and interface relating to fonts.
java.awt.geom	Provides the Java 2D classes for defining and performing operations on objects related to two-dimensional geometry.
java.awt.im	Provides classes and interfaces for the input method framework.
java.awt.im.spi	Provides interfaces that enable the development of input methods that can be used with any Java runtime environment.
java.awt.image	Provides classes for creating and modifying images.
java.awt.image.renderable	Provides classes and interfaces for producing rendering-independent images.
java.awt.print	Provides classes and interfaces for a general printing API.
java.beans	Contains classes related to developing beans -- components based on the JavaBeans™ architecture.
java.beans.beancontext	Provides classes and interfaces relating to bean context.
java.io	Provides for system input and output through data streams, serialization and the file system.
java.lang	Provides classes that are fundamental to the design of the Java programming language.
java.lang.annotation	Provides library support for the Java programming language annotation facility.
java.lang.instrument	Provides services that allow Java programming language agents to instrument programs running on the JVM.
java.lang.invoke	The java.lang.invoke package contains dynamic language support provided directly by the Java core class libraries and virtual machine.
java.lang.management	Provides the management interfaces for monitoring and management of the Java virtual machine and other components in the Java runtime.
java.lang.module	Classes to support module descriptors and creating configurations of modules by means of resolution and service binding.
java.lang.ref	Provides reference-object classes, which support a limited degree of interaction with the garbage collector.
java.lang.reflect	Provides classes and interfaces for obtaining reflective information about modules, classes and objects.
java.math	Provides classes for performing arbitrary-precision integer arithmetic (BigInteger) and arbitrary-precision decimal arithmetic (BigDecimal).
java.net	Provides the classes for implementing networking applications.
java.net.spi	Service-provider classes for the java.net package.
java.nio	Defines buffers, which are containers for data, and provides an overview of the other NIO packages.
java.nio.channels	Defines channels, which represent connections to entities that are capable of performing I/O operations, such as files and sockets; defines selectors, for multiplexed, non-blocking I/O operations.
java.nio.channels.spi	Service-provider classes for the java.nio.channels package.
java.nio.charset	Defines charsets, decoders, and encoders, for translating between bytes and Unicode characters.
java.nio.charset.spi	Service-provider classes for the java.nio.charset package.
java.nio.file	Defines interfaces and classes for the Java virtual machine to access files, file attributes, and file systems.
java.nio.file.attribute	Interfaces and classes providing access to file and file system attributes.
java.nio.file.spi	Service-provider classes for the java.nio.file package.
java.rmi	Provides the RMI package.
java.rmi.activation	Provides support for RMI Object Activation.
java.rmi.dgc	Provides classes and interface for RMI distributed garbage-collection (DGC).
java.rmi.registry	Provides a class and two interfaces for the RMI registry.
java.rmi.server	Provides classes and interfaces for supporting the server side of RMI.
java.security	Provides the classes and interfaces for the security framework.
java.security.acl	The classes and interfaces in this package have been deprecated.
java.security.cert	Provides classes and interfaces for parsing and managing certificates, certificate revocation lists (CRLs), and certification paths.
java.security.spec	Provides classes and interfaces for key specifications and algorithm parameter specifications.
java.sql	Provides the API for accessing and processing data stored in a data source (usually a relational database) using the Java™ programming language.
java.text	Provides classes and interfaces for handling text, dates, numbers, and messages in a manner independent of natural languages.
java.text.spi	Service provider classes for the classes in the java.text package.
java.time	The main API for dates, times, instants, and durations.
java.time.chrono	Generic API for calendar systems other than the default ISO.
java.time.format	Provides classes to print and parse dates and times.
java.time.temporal	Access to date and time using fields and units, and date time adjusters.
java.time.zone	Support for time-zones and their rules.
java.util	Contains the collections framework, legacy collection classes, event model, date and time facilities, internationalization, and miscellaneous utility classes (a string tokenizer, a random-number generator, and a bit array).
java.util.concurrent	Utility classes commonly useful in concurrent programming.
java.util.concurrent.atomic	A small toolkit of classes that support lock-free thread-safe programming on single variables.
java.util.concurrent.locks	Interfaces and classes providing a framework for locking and waiting for conditions that is distinct from built-in synchronization and monitors.
java.util.function	Functional interfaces provide target types for lambda expressions and method references.
java.util.jar	Provides classes for reading and writing the JAR (Java ARchive) file format, which is based on the standard ZIP file format with an optional manifest file.
java.util.logging	Provides the classes and interfaces of the Java™ 2 platform's core logging facilities.
java.util.prefs	This package allows applications to store and retrieve user and system preference and configuration data.
java.util.regex	Classes for matching character sequences against patterns specified by regular expressions.
java.util.spi	Service provider classes for the classes in the java.util package.
java.util.stream	Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections.
java.util.zip	Provides classes for reading and writing the standard ZIP and GZIP file formats.
javax.accessibility	Defines a contract between user-interface components and an assistive technology that provides access to those components.
javax.activation
javax.activity	Contains Activity service related exceptions thrown by the ORB machinery during unmarshalling.
javax.annotation.processing	Facilities for declaring annotation processors and for allowing annotation processors to communicate with an annotation processing tool environment.
javax.crypto	Provides the classes and interfaces for cryptographic operations.
javax.crypto.spec	Provides classes and interfaces for key specifications and algorithm parameter specifications.
javax.imageio	The main package of the Java Image I/O API.
javax.imageio.metadata	A package of the Java Image I/O API dealing with reading and writing metadata.
javax.imageio.plugins.bmp	Package containing the public classes used by the built-in BMP plug-in.
javax.imageio.plugins.jpeg	Classes supporting the built-in JPEG plug-in.
javax.imageio.plugins.tiff	Public classes used by the built-in TIFF plug-ins.
javax.imageio.spi	A package of the Java Image I/O API containing the plug-in interfaces for readers, writers, transcoders, and streams, and a runtime registry.
javax.imageio.stream	A package of the Java Image I/O API dealing with low-level I/O from files and streams.
javax.lang.model	Classes and hierarchies of packages used to model the Java programming language.
javax.lang.model.element	Interfaces used to model elements of the Java programming language.
javax.lang.model.type	Interfaces used to model Java programming language types.
javax.lang.model.util	Utilities to assist in the processing of program elements and types.
javax.management	Provides the core classes for the Java Management Extensions.
javax.management.loading	Provides the classes which implement advanced dynamic loading.
javax.management.modelmbean	Provides the definition of the ModelMBean classes.
javax.management.monitor	Provides the definition of the monitor classes.
javax.management.openmbean	Provides the open data types and Open MBean descriptor classes.
javax.management.relation	Provides the definition of the Relation Service.
javax.management.remote	Interfaces for remote access to JMX MBean servers.
javax.management.remote.rmi	The RMI connector is a connector for the JMX Remote API that uses RMI to transmit client requests to a remote MBean server.
javax.management.timer	Provides the definition of the Timer MBean.
javax.naming	Provides the classes and interfaces for accessing naming services.
javax.naming.directory	Extends the javax.naming package to provide functionality for accessing directory services.
javax.naming.event	Provides support for event notification when accessing naming and directory services.
javax.naming.ldap	Provides support for LDAPv3 extended operations and controls.
javax.naming.spi	Provides the means for dynamically plugging in support for accessing naming and directory services through the javax.naming and related packages.
javax.net	Provides classes for networking applications.
javax.net.ssl	Provides classes for the secure socket package.
javax.print	Provides the principal classes and interfaces for the Java™ Print Service API.
javax.print.attribute	Provides classes and interfaces that describe the types of Java™ Print Service attributes and how they can be collected into attribute sets.
javax.print.attribute.standard	Package javax.print.attribute.standard contains classes for specific printing attributes.
javax.print.event	Package javax.print.event contains event classes and listener interfaces.
javax.rmi	Contains user APIs for RMI-IIOP.
javax.rmi.CORBA	Contains portability APIs for RMI-IIOP.
javax.rmi.ssl	Provides implementations of RMIClientSocketFactory and RMIServerSocketFactory over the Secure Sockets Layer (SSL) or Transport Layer Security (TLS) protocols.
javax.script	The scripting API consists of interfaces and classes that define Java™ Scripting Engines and provides a framework for their use in Java applications.
javax.security.auth	This package provides a framework for authentication and authorization.
javax.security.auth.callback	This package provides the classes necessary for services to interact with applications in order to retrieve information (authentication data including usernames or passwords, for example) or to display information (error and warning messages, for example).
javax.security.auth.kerberos	This package contains utility classes related to the Kerberos network authentication protocol.
javax.security.auth.login	This package provides a pluggable authentication framework.
javax.security.auth.x500	This package contains the classes that should be used to store X500 Principal and X500 Private Credentials in a Subject.
javax.security.cert	Provides classes for public key certificates.
javax.security.sasl	Contains class and interfaces for supporting SASL.
javax.sound.midi	Provides interfaces and classes for I/O, sequencing, and synthesis of MIDI (Musical Instrument Digital Interface) data.
javax.sound.midi.spi	Supplies interfaces for service providers to implement when offering new MIDI devices, MIDI file readers and writers, or sound bank readers.
javax.sound.sampled	Provides interfaces and classes for capture, processing, and playback of sampled audio data.
javax.sound.sampled.spi	Supplies abstract classes for service providers to subclass when offering new audio devices, sound file readers and writers, or audio format converters.
javax.sql	Provides the API for server side data source access and processing from the Java™ programming language.
javax.sql.rowset	Standard interfaces and base classes for JDBC RowSet implementations.
javax.sql.rowset.serial	Provides utility classes to allow serializable mappings between SQL types and data types in the Java programming language.
javax.sql.rowset.spi	The standard classes and interfaces that a third party vendor has to use in its implementation of a synchronization provider.
javax.swing	Provides a set of "lightweight" (all-Java language) components that, to the maximum degree possible, work the same on all platforms.
javax.swing.border	Provides classes and interface for drawing specialized borders around a Swing component.
javax.swing.colorchooser	Contains classes and interfaces used by the JColorChooser component.
javax.swing.event	Provides for events fired by Swing components.
javax.swing.filechooser	Contains classes and interfaces used by the JFileChooser component.
javax.swing.plaf	Provides one interface and many abstract classes that Swing uses to provide its pluggable look-and-feel capabilities.
javax.swing.plaf.basic	Provides user interface objects built according to the Basic look and feel.
javax.swing.plaf.metal	Provides user interface objects built according to the Java look and feel (once codenamed Metal), which is the default look and feel.
javax.swing.plaf.multi	Provides user interface objects that combine two or more look and feels.
javax.swing.plaf.nimbus	Provides user interface objects built according to the cross-platform Nimbus look and feel.
javax.swing.plaf.synth	Synth is a skinnable look and feel in which all painting is delegated.
javax.swing.table	Provides classes and interfaces for dealing with javax.swing.JTable.
javax.swing.text	Provides classes and interfaces that deal with editable and noneditable text components.
javax.swing.text.html	Provides the class HTMLEditorKit and supporting classes for creating HTML text editors.
javax.swing.text.html.parser	Provides the default HTML parser, along with support classes.
javax.swing.text.rtf	Provides a class (RTFEditorKit) for creating Rich-Text-Format text editors.
javax.swing.tree	Provides classes and interfaces for dealing with javax.swing.JTree.
javax.swing.undo	Allows developers to provide support for undo/redo in applications such as text editors.
javax.tools	Provides interfaces for tools which can be invoked from a program, for example, compilers.
javax.transaction	Contains three exceptions thrown by the ORB machinery during unmarshalling.
javax.transaction.xa	Provides the API that defines the contract between the transaction manager and the resource manager, which allows the transaction manager to enlist and delist resource objects (supplied by the resource manager driver) in JTA transactions.
javax.xml
javax.xml.bind	Provides a runtime binding framework for client applications including unmarshalling, marshalling, and validation capabilities.
javax.xml.bind.annotation	Defines annotations for customizing Java program elements to XML Schema mapping.
javax.xml.bind.annotation.adapters	XmlAdapter and its spec-defined sub-classes to allow arbitrary Java classes to be used with JAXB.
javax.xml.bind.attachment	This package is implemented by a MIME-based package processor that enables the interpretation and creation of optimized binary data within an MIME-based package format.
javax.xml.bind.helpers	JAXB Provider Use Only: Provides partial default implementations for some of the javax.xml.bind interfaces.
javax.xml.bind.util	Useful client utility classes.
javax.xml.catalog	Provides the classes for implementing XML Catalogs OASIS Standard V1.1, 7 October 2005.
javax.xml.crypto	Common classes for XML cryptography.
javax.xml.crypto.dom	DOM-specific classes for the javax.xml.crypto package.
javax.xml.crypto.dsig	Classes for generating and validating XML digital signatures.
javax.xml.crypto.dsig.dom	DOM-specific classes for the javax.xml.crypto.dsig package.
javax.xml.crypto.dsig.keyinfo	Classes for parsing and processing KeyInfo elements and structures.
javax.xml.crypto.dsig.spec	Parameter classes for XML digital signatures.
javax.xml.datatype	XML/Java Type Mappings.
javax.xml.namespace	XML Namespace processing.
javax.xml.parsers	Provides classes allowing the processing of XML documents.
javax.xml.soap	Provides the API for creating and building SOAP messages.
javax.xml.stream
javax.xml.stream.events
javax.xml.stream.util
javax.xml.transform	This package defines the generic APIs for processing transformation instructions, and performing a transformation from source to result.
javax.xml.transform.dom	This package implements DOM-specific transformation APIs.
javax.xml.transform.sax	This package implements SAX2-specific transformation APIs.
javax.xml.transform.stax	Provides for StAX-specific transformation APIs.
javax.xml.transform.stream	This package implements stream- and URI- specific transformation APIs.
javax.xml.validation	This package provides an API for validation of XML documents.
javax.xml.ws	This package contains the core JAX-WS APIs.
javax.xml.ws.handler.soap	This package defines APIs for SOAP message handlers.
javax.xml.ws.http	This package defines APIs specific to the HTTP binding.
javax.xml.ws.soap	This package defines APIs specific to the SOAP binding.
javax.xml.ws.spi	This package defines SPIs for JAX-WS.
javax.xml.ws.spi.http	Provides HTTP SPI that is used for portable deployment of JAX-WS web services in containers(for e.g. servlet containers).
javax.xml.ws.wsaddressing	This package defines APIs related to WS-Addressing.
javax.xml.xpath	This package provides an object-model neutral API for the evaluation of XPath expressions and access to the evaluation environment.
org.ietf.jgss	This package presents a framework that allows application developers to make use of security services like authentication, data integrity and data confidentiality from a variety of underlying security mechanisms like Kerberos, using a unified API.
org.omg.CORBA	Provides the mapping of the OMG CORBA APIs to the JavaTM programming language, including the class ORB, which is implemented so that a programmer can use it as a fully-functional Object Request Broker (ORB).
org.omg.CORBA_2_3	The CORBA_2_3 package defines additions to existing CORBA interfaces in the Java[tm] Standard Edition 6. These changes occurred in recent revisions to the CORBA API defined by the OMG. The new methods were added to interfaces derived from the corresponding interfaces in the CORBA package. This provides backward compatibility and avoids breaking the JCK tests.
org.omg.CORBA_2_3.portable	Provides methods for the input and output of value types, and contains other updates to the org/omg/CORBA/portable package.
org.omg.CORBA.DynAnyPackage	Provides the exceptions used with the DynAny interface (InvalidValue, Invalid, InvalidSeq, and TypeMismatch).
org.omg.CORBA.ORBPackage	Provides the exception InvalidName, which is thrown by the method ORB.resolve_initial_references and the exception InconsistentTypeCode, which is thrown by the Dynamic Any creation methods in the ORB class.
org.omg.CORBA.portable	Provides a portability layer, that is, a set of ORB APIs that makes it possible for code generated by one vendor to run on another vendor's ORB.
org.omg.CORBA.TypeCodePackage	Provides the user-defined exceptions BadKind and Bounds, which are thrown by methods in in the class TypeCode.
org.omg.CosNaming	Provides a naming service for Java IDL.
org.omg.CosNaming.NamingContextExtPackage	This package contains the following classes, which are used in org.omg.CosNaming.NamingContextExt: AddressHelper StringNameHelper URLStringHelper InvalidAddress
org.omg.CosNaming.NamingContextPackage	This package contains Exception classes for the org.omg.CosNaming package.
org.omg.Dynamic	This package contains the Dynamic module specified in the OMG Portable Interceptor specification, ptc/2000-08-06, section 21.9.
org.omg.DynamicAny	Provides classes and interfaces that enable traversal of the data value associated with an any at runtime, and extraction of the primitive constituents of the data value.
org.omg.DynamicAny.DynAnyFactoryPackage	This package contains classes and exceptions from the DynAnyFactory interface of the DynamicAny module specified in the OMG The Common Object Request Broker: Architecture and Specification, formal/99-10-07, section 9.2.2.
org.omg.DynamicAny.DynAnyPackage	This package contains classes and exceptions from the DynAny interface of the DynamicAny module specified in the OMG The Common Object Request Broker: Architecture and Specification, formal/99-10-07, section 9.2.
org.omg.IOP	This package contains the IOP module specified in the OMG document The Common Object Request Broker: Architecture and Specification, formal/99-10-07, section 13.6.
org.omg.IOP.CodecFactoryPackage	This package contains the exceptions specified in the IOP::CodeFactory interface (as part of the Portable Interceptors spec).
org.omg.IOP.CodecPackage	This package is generated from the IOP::Codec IDL interface definition.
org.omg.Messaging	This package contains the Messaging module specified in the OMG CORBA Messaging specification, formal/99-10-07.
org.omg.PortableInterceptor	Provides a mechanism to register ORB hooks through which ORB services can intercept the normal flow of execution of the ORB.
org.omg.PortableInterceptor.ORBInitInfoPackage	This package contains the exceptions and typedefs from the ORBInitInfo local interface of the PortableInterceptor module specified in the OMG Portable Interceptor specification, ptc/2000-08-06, section 21.7.2.
org.omg.PortableServer	Provides classes and interfaces for making the server side of your applications portable across multivendor ORBs.
org.omg.PortableServer.CurrentPackage	Provides method implementations with access to the identity of the object on which the method was invoked.
org.omg.PortableServer.POAManagerPackage	Encapsulates the processing state of the POAs it is associated with.
org.omg.PortableServer.POAPackage	Allows programmers to construct object implementations that are portable between different ORB products.
org.omg.PortableServer.ServantLocatorPackage	Provides classes and interfaces for locating the servant.
org.omg.stub.java.rmi	Contains RMI-IIOP Stubs for the Remote types that occur in the java.rmi package.
org.w3c.dom	Provides the interfaces for the Document Object Model (DOM).
org.w3c.dom.bootstrap
org.w3c.dom.events
org.w3c.dom.ls
org.w3c.dom.ranges	Document Object Model Level 2 Traversal and Range is a platform and language-neutral interfaces that allow programs and scripts to dynamically traverse and identify a range of content in a document.
org.xml.sax	This package provides the core SAX APIs.
org.xml.sax.ext	This package contains interfaces to SAX2 facilities that conformant SAX drivers won't necessarily support.
org.xml.sax.helpers	This package contains "helper" classes, including support for bootstrapping SAX-based applications.

Uses of Object in java.applet

Subclasses of Object in java.applet

Modifier and Type	Class	Description
class	Applet	Deprecated. The Applet API is deprecated. See the java.applet package documentation for further information.
protected class	Applet.AccessibleApplet	Deprecated. This class implements accessibility support for the Applet class.

Uses of Object in java.awt

Subclasses of Object in java.awt

Modifier and Type	Class	Description
class	AlphaComposite	The AlphaComposite class implements basic alpha compositing rules for combining source and destination colors to achieve blending and transparency effects with graphics and images.
class	AWTError	Thrown when a serious Abstract Window Toolkit error has occurred.
class	AWTEvent	The root event class for all AWT events.
class	AWTEventMulticaster	AWTEventMulticaster implements efficient and thread-safe multi-cast event dispatching for the AWT events defined in the java.awt.event package.
class	AWTException	Signals that an Abstract Window Toolkit exception has occurred.
class	AWTKeyStroke	An AWTKeyStroke represents a key action on the keyboard, or equivalent input device.
class	AWTPermission	This class is for AWT permissions.
class	BasicStroke	The BasicStroke class defines a basic set of rendering attributes for the outlines of graphics primitives, which are rendered with a Graphics2D object that has its Stroke attribute set to this BasicStroke.
class	BorderLayout	A border layout lays out a container, arranging and resizing its components to fit in five regions: north, south, east, west, and center.
class	BufferCapabilities	Capabilities and properties of buffers.
static class	BufferCapabilities.FlipContents	A type-safe enumeration of the possible back buffer contents after page-flipping
class	Button	This class creates a labeled button.
protected class	Button.AccessibleAWTButton	This class implements accessibility support for the Button class.
class	Canvas	A Canvas component represents a blank rectangular area of the screen onto which the application can draw or from which the application can trap input events from the user.
protected class	Canvas.AccessibleAWTCanvas	This class implements accessibility support for the Canvas class.
class	CardLayout	A CardLayout object is a layout manager for a container.
class	Checkbox	A check box is a graphical component that can be in either an "on" (true) or "off" (false) state.
protected class	Checkbox.AccessibleAWTCheckbox	This class implements accessibility support for the Checkbox class.
class	CheckboxGroup	The CheckboxGroup class is used to group together a set of Checkbox buttons.
class	CheckboxMenuItem	This class represents a check box that can be included in a menu.
protected class	CheckboxMenuItem.AccessibleAWTCheckboxMenuItem	Inner class of CheckboxMenuItem used to provide default support for accessibility.
class	Choice	The Choice class presents a pop-up menu of choices.
protected class	Choice.AccessibleAWTChoice	This class implements accessibility support for the Choice class.
class	Color	The Color class is used to encapsulate colors in the default sRGB color space or colors in arbitrary color spaces identified by a ColorSpace.
class	Component	A component is an object having a graphical representation that can be displayed on the screen and that can interact with the user.
protected class	Component.AccessibleAWTComponent	Inner class of Component used to provide default support for accessibility.
protected class	Component.AccessibleAWTComponent.AccessibleAWTComponentHandler	Fire PropertyChange listener, if one is registered, when shown/hidden..
protected class	Component.AccessibleAWTComponent.AccessibleAWTFocusHandler	Fire PropertyChange listener, if one is registered, when focus events happen
protected class	Component.BltBufferStrategy	Inner class for blitting offscreen surfaces to a component.
protected class	Component.FlipBufferStrategy	Inner class for flipping buffers on a component.
class	ComponentOrientation	The ComponentOrientation class encapsulates the language-sensitive orientation that is to be used to order the elements of a component or of text.
class	Container	A generic Abstract Window Toolkit(AWT) container object is a component that can contain other AWT components.
protected class	Container.AccessibleAWTContainer	Inner class of Container used to provide default support for accessibility.
protected class	Container.AccessibleAWTContainer.AccessibleContainerHandler	Fire PropertyChange listener, if one is registered, when children are added or removed.
class	ContainerOrderFocusTraversalPolicy	A FocusTraversalPolicy that determines traversal order based on the order of child Components in a Container.
class	Cursor	A class to encapsulate the bitmap representation of the mouse cursor.
class	DefaultFocusTraversalPolicy	A FocusTraversalPolicy that determines traversal order based on the order of child Components in a Container.
class	DefaultKeyboardFocusManager	The default KeyboardFocusManager for AWT applications.
class	Desktop	The Desktop class allows interact with various desktop capabilities.
class	Dialog	A Dialog is a top-level window with a title and a border that is typically used to take some form of input from the user.
protected class	Dialog.AccessibleAWTDialog	This class implements accessibility support for the Dialog class.
class	Dimension	The Dimension class encapsulates the width and height of a component (in integer precision) in a single object.
class	DisplayMode	The DisplayMode class encapsulates the bit depth, height, width, and refresh rate of a GraphicsDevice.
class	Event	Deprecated. It is recommended that AWTEvent and its subclasses be used instead
class	EventQueue	EventQueue is a platform-independent class that queues events, both from the underlying peer classes and from trusted application classes.
class	FileDialog	The FileDialog class displays a dialog window from which the user can select a file.
class	FlowLayout	A flow layout arranges components in a directional flow, much like lines of text in a paragraph.
class	FocusTraversalPolicy	A FocusTraversalPolicy defines the order in which Components with a particular focus cycle root are traversed.
class	Font	The Font class represents fonts, which are used to render text in a visible way.
class	FontFormatException	Thrown by method createFont in the Font class to indicate that the specified font is bad.
class	FontMetrics	The FontMetrics class defines a font metrics object, which encapsulates information about the rendering of a particular font on a particular screen.
class	Frame	A Frame is a top-level window with a title and a border.
protected class	Frame.AccessibleAWTFrame	This class implements accessibility support for the Frame class.
class	GradientPaint	The GradientPaint class provides a way to fill a Shape with a linear color gradient pattern.
class	Graphics	The Graphics class is the abstract base class for all graphics contexts that allow an application to draw onto components that are realized on various devices, as well as onto off-screen images.
class	Graphics2D	This Graphics2D class extends the Graphics class to provide more sophisticated control over geometry, coordinate transformations, color management, and text layout.
class	GraphicsConfigTemplate	The GraphicsConfigTemplate class is used to obtain a valid GraphicsConfiguration.
class	GraphicsConfiguration	The GraphicsConfiguration class describes the characteristics of a graphics destination such as a printer or monitor.
class	GraphicsDevice	The GraphicsDevice class describes the graphics devices that might be available in a particular graphics environment.
class	GraphicsEnvironment	The GraphicsEnvironment class describes the collection of GraphicsDevice objects and Font objects available to a Java(tm) application on a particular platform.
class	GridBagConstraints	The GridBagConstraints class specifies constraints for components that are laid out using the GridBagLayout class.
class	GridBagLayout	The GridBagLayout class is a flexible layout manager that aligns components vertically, horizontally or along their baseline without requiring that the components be of the same size.
class	GridBagLayoutInfo	The GridBagLayoutInfo is an utility class for GridBagLayout layout manager.
class	GridLayout	The GridLayout class is a layout manager that lays out a container's components in a rectangular grid.
class	HeadlessException	Thrown when code that is dependent on a keyboard, display, or mouse is called in an environment that does not support a keyboard, display, or mouse.
class	IllegalComponentStateException	Signals that an AWT component is not in an appropriate state for the requested operation.
class	Image	The abstract class Image is the superclass of all classes that represent graphical images.
class	ImageCapabilities	Capabilities and properties of images.
class	Insets	An Insets object is a representation of the borders of a container.
class	JobAttributes	A set of attributes which control a print job.
static class	JobAttributes.DefaultSelectionType	A type-safe enumeration of possible default selection states.
static class	JobAttributes.DestinationType	A type-safe enumeration of possible job destinations.
static class	JobAttributes.DialogType	A type-safe enumeration of possible dialogs to display to the user.
static class	JobAttributes.MultipleDocumentHandlingType	A type-safe enumeration of possible multiple copy handling states.
static class	JobAttributes.SidesType	A type-safe enumeration of possible multi-page impositions.
class	KeyboardFocusManager	The KeyboardFocusManager is responsible for managing the active and focused Windows, and the current focus owner.
class	Label	A Label object is a component for placing text in a container.
protected class	Label.AccessibleAWTLabel	This class implements accessibility support for the Label class.
class	LinearGradientPaint	The LinearGradientPaint class provides a way to fill a Shape with a linear color gradient pattern.
class	List	The List component presents the user with a scrolling list of text items.
protected class	List.AccessibleAWTList	This class implements accessibility support for the List class.
protected class	List.AccessibleAWTList.AccessibleAWTListChild	This class implements accessibility support for List children.
class	MediaTracker	The MediaTracker class is a utility class to track the status of a number of media objects.
class	Menu	A Menu object is a pull-down menu component that is deployed from a menu bar.
protected class	Menu.AccessibleAWTMenu	Inner class of Menu used to provide default support for accessibility.
class	MenuBar	The MenuBar class encapsulates the platform's concept of a menu bar bound to a frame.
protected class	MenuBar.AccessibleAWTMenuBar	Inner class of MenuBar used to provide default support for accessibility.
class	MenuComponent	The abstract class MenuComponent is the superclass of all menu-related components.
protected class	MenuComponent.AccessibleAWTMenuComponent	Inner class of MenuComponent used to provide default support for accessibility.
class	MenuItem	All items in a menu must belong to the class MenuItem, or one of its subclasses.
protected class	MenuItem.AccessibleAWTMenuItem	Inner class of MenuItem used to provide default support for accessibility.
class	MenuShortcut	The MenuShortcut class represents a keyboard accelerator for a MenuItem.
class	MouseInfo	MouseInfo provides methods for getting information about the mouse, such as mouse pointer location and the number of mouse buttons.
class	MultipleGradientPaint	This is the superclass for Paints which use a multiple color gradient to fill in their raster.
class	PageAttributes	A set of attributes which control the output of a printed page.
static class	PageAttributes.ColorType	A type-safe enumeration of possible color states.
static class	PageAttributes.MediaType	A type-safe enumeration of possible paper sizes.
static class	PageAttributes.OrientationRequestedType	A type-safe enumeration of possible orientations.
static class	PageAttributes.OriginType	A type-safe enumeration of possible origins.
static class	PageAttributes.PrintQualityType	A type-safe enumeration of possible print qualities.
class	Panel	Panel is the simplest container class.
protected class	Panel.AccessibleAWTPanel	This class implements accessibility support for the Panel class.
class	Point	A point representing a location in (x,y) coordinate space, specified in integer precision.
class	PointerInfo	A class that describes the pointer position.
class	Polygon	The Polygon class encapsulates a description of a closed, two-dimensional region within a coordinate space.
class	PopupMenu	A class that implements a menu which can be dynamically popped up at a specified position within a component.
protected class	PopupMenu.AccessibleAWTPopupMenu	Inner class of PopupMenu used to provide default support for accessibility.
class	PrintJob	An abstract class which initiates and executes a print job.
class	RadialGradientPaint	The RadialGradientPaint class provides a way to fill a shape with a circular radial color gradient pattern.
class	Rectangle	A Rectangle specifies an area in a coordinate space that is enclosed by the Rectangle object's upper-left point (x,y) in the coordinate space, its width, and its height.
class	RenderingHints	The RenderingHints class defines and manages collections of keys and associated values which allow an application to provide input into the choice of algorithms used by other classes which perform rendering and image manipulation services.
static class	RenderingHints.Key	Defines the base type of all keys used along with the RenderingHints class to control various algorithm choices in the rendering and imaging pipelines.
class	Robot	This class is used to generate native system input events for the purposes of test automation, self-running demos, and other applications where control of the mouse and keyboard is needed.
class	Scrollbar	The Scrollbar class embodies a scroll bar, a familiar user-interface object.
protected class	Scrollbar.AccessibleAWTScrollBar	This class implements accessibility support for the Scrollbar class.
class	ScrollPane	A container class which implements automatic horizontal and/or vertical scrolling for a single child component.
protected class	ScrollPane.AccessibleAWTScrollPane	This class implements accessibility support for the ScrollPane class.
class	ScrollPaneAdjustable	This class represents the state of a horizontal or vertical scrollbar of a ScrollPane.
class	SplashScreen	The splash screen can be displayed at application startup, before the Java Virtual Machine (JVM) starts.
class	SystemColor	A class to encapsulate symbolic colors representing the color of native GUI objects on a system.
class	SystemTray	The SystemTray class represents the system tray for a desktop.
class	Taskbar	The Taskbar class allows a Java application to interact with the system task area (taskbar, Dock, etc.).
class	TextArea	A TextArea object is a multi-line region that displays text.
protected class	TextArea.AccessibleAWTTextArea	This class implements accessibility support for the TextArea class.
class	TextComponent	The TextComponent class is the superclass of any component that allows the editing of some text.
protected class	TextComponent.AccessibleAWTTextComponent	This class implements accessibility support for the TextComponent class.
class	TextField	A TextField object is a text component that allows for the editing of a single line of text.
protected class	TextField.AccessibleAWTTextField	This class implements accessibility support for the TextField class.
class	TexturePaint	The TexturePaint class provides a way to fill a Shape with a texture that is specified as a BufferedImage.
class	Toolkit	This class is the abstract superclass of all actual implementations of the Abstract Window Toolkit.
class	TrayIcon	A TrayIcon object represents a tray icon that can be added to the system tray.
class	Window	A Window object is a top-level window with no borders and no menubar.
protected class	Window.AccessibleAWTWindow	This class implements accessibility support for the Window class.

Fields in java.awt declared as Object

Modifier and Type	Field	Description
Object	Event.arg	Deprecated. An arbitrary argument of the event.
Object	Event.target	Deprecated. The target component.
static Object	Image.UndefinedProperty	The UndefinedProperty object should be returned whenever a property which was not defined for a particular image is fetched.
static Object	RenderingHints.VALUE_ALPHA_INTERPOLATION_DEFAULT	Alpha interpolation hint value -- alpha blending algorithms are chosen by the implementation for a good tradeoff of performance vs. quality.
static Object	RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY	Alpha interpolation hint value -- alpha blending algorithms are chosen with a preference for precision and visual quality.
static Object	RenderingHints.VALUE_ALPHA_INTERPOLATION_SPEED	Alpha interpolation hint value -- alpha blending algorithms are chosen with a preference for calculation speed.
static Object	RenderingHints.VALUE_ANTIALIAS_DEFAULT	Antialiasing hint value -- rendering is done with a default antialiasing mode chosen by the implementation.
static Object	RenderingHints.VALUE_ANTIALIAS_OFF	Antialiasing hint value -- rendering is done without antialiasing.
static Object	RenderingHints.VALUE_ANTIALIAS_ON	Antialiasing hint value -- rendering is done with antialiasing.
static Object	RenderingHints.VALUE_COLOR_RENDER_DEFAULT	Color rendering hint value -- perform color conversion calculations as chosen by the implementation to represent the best available tradeoff between performance and accuracy.
static Object	RenderingHints.VALUE_COLOR_RENDER_QUALITY	Color rendering hint value -- perform the color conversion calculations with the highest accuracy and visual quality.
static Object	RenderingHints.VALUE_COLOR_RENDER_SPEED	Color rendering hint value -- perform the fastest color conversion to the format of the output device.
static Object	RenderingHints.VALUE_DITHER_DEFAULT	Dithering hint value -- use a default for dithering chosen by the implementation.
static Object	RenderingHints.VALUE_DITHER_DISABLE	Dithering hint value -- do not dither when rendering geometry.
static Object	RenderingHints.VALUE_DITHER_ENABLE	Dithering hint value -- dither when rendering geometry, if needed.
static Object	RenderingHints.VALUE_FRACTIONALMETRICS_DEFAULT	Font fractional metrics hint value -- character glyphs are positioned with accuracy chosen by the implementation.
static Object	RenderingHints.VALUE_FRACTIONALMETRICS_OFF	Font fractional metrics hint value -- character glyphs are positioned with advance widths rounded to pixel boundaries.
static Object	RenderingHints.VALUE_FRACTIONALMETRICS_ON	Font fractional metrics hint value -- character glyphs are positioned with sub-pixel accuracy.
static Object	RenderingHints.VALUE_INTERPOLATION_BICUBIC	Interpolation hint value -- the color samples of 9 nearby integer coordinate samples in the image are interpolated using a cubic function in both X and Y to produce a color sample.
static Object	RenderingHints.VALUE_INTERPOLATION_BILINEAR	Interpolation hint value -- the color samples of the 4 nearest neighboring integer coordinate samples in the image are interpolated linearly to produce a color sample.
static Object	RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR	Interpolation hint value -- the color sample of the nearest neighboring integer coordinate sample in the image is used.
static Object	RenderingHints.VALUE_RENDER_DEFAULT	Rendering hint value -- rendering algorithms are chosen by the implementation for a good tradeoff of performance vs. quality.
static Object	RenderingHints.VALUE_RENDER_QUALITY	Rendering hint value -- rendering algorithms are chosen with a preference for output quality.
static Object	RenderingHints.VALUE_RENDER_SPEED	Rendering hint value -- rendering algorithms are chosen with a preference for output speed.
static Object	RenderingHints.VALUE_RESOLUTION_VARIANT_BASE	Image resolution variant hint value -- the standard resolution of an image is always used.
static Object	RenderingHints.VALUE_RESOLUTION_VARIANT_DEFAULT	Image resolution variant hint value -- an image resolution variant is chosen based on a default heuristic which may depend on the policies of the platform
static Object	RenderingHints.VALUE_RESOLUTION_VARIANT_DPI_FIT	Image resolution variant hint value -- an image resolution variant is chosen based only on the DPI of the screen.
static Object	RenderingHints.VALUE_RESOLUTION_VARIANT_SIZE_FIT	Image resolution variant hint value -- an image resolution variant is chosen based on the DPI of the screen and the transform in the Graphics2D context.
static Object	RenderingHints.VALUE_STROKE_DEFAULT	Stroke normalization control hint value -- geometry may be modified or left pure depending on the tradeoffs in a given implementation.
static Object	RenderingHints.VALUE_STROKE_NORMALIZE	Stroke normalization control hint value -- geometry should be normalized to improve uniformity or spacing of lines and overall aesthetics.
static Object	RenderingHints.VALUE_STROKE_PURE	Stroke normalization control hint value -- geometry should be left unmodified and rendered with sub-pixel accuracy.
static Object	RenderingHints.VALUE_TEXT_ANTIALIAS_DEFAULT	Text antialiasing hint value -- text rendering is done according to the RenderingHints.KEY_ANTIALIASING hint or a default chosen by the implementation.
static Object	RenderingHints.VALUE_TEXT_ANTIALIAS_GASP	Text antialiasing hint value -- text rendering is requested to use information in the font resource which specifies for each point size whether to apply RenderingHints.VALUE_TEXT_ANTIALIAS_ON or RenderingHints.VALUE_TEXT_ANTIALIAS_OFF.
static Object	RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HBGR	Text antialiasing hint value -- request that text be displayed optimised for an LCD display with subpixels in order from display left to right of B,G,R such that the horizontal subpixel resolution is three times that of the full pixel horizontal resolution (HBGR).
static Object	RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB	Text antialiasing hint value -- request that text be displayed optimised for an LCD display with subpixels in order from display left to right of R,G,B such that the horizontal subpixel resolution is three times that of the full pixel horizontal resolution (HRGB).
static Object	RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_VBGR	Text antialiasing hint value -- request that text be displayed optimised for an LCD display with subpixel organisation from display top to bottom of B,G,R such that the vertical subpixel resolution is three times that of the full pixel vertical resolution (VBGR).
static Object	RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_VRGB	Text antialiasing hint value -- request that text be displayed optimised for an LCD display with subpixel organisation from display top to bottom of R,G,B such that the vertical subpixel resolution is three times that of the full pixel vertical resolution (VRGB).
static Object	RenderingHints.VALUE_TEXT_ANTIALIAS_OFF	Text antialiasing hint value -- text rendering is done without any form of antialiasing.
static Object	RenderingHints.VALUE_TEXT_ANTIALIAS_ON	Text antialiasing hint value -- text rendering is done with some form of antialiasing.

Fields in java.awt with type parameters of type Object

Modifier and Type	Field	Description
protected Map<String,Object>	Toolkit.desktopProperties	The desktop properties.

Methods in java.awt that return Object

Modifier and Type	Method	Description
Object	BufferCapabilities.clone()
Object	GridBagConstraints.clone()	Creates a copy of this grid bag constraint.
Object	ImageCapabilities.clone()
Object	Insets.clone()	Create a copy of this object.
Object	JobAttributes.clone()	Creates and returns a copy of this JobAttributes.
Object	PageAttributes.clone()	Creates and returns a copy of this PageAttributes.
Object	RenderingHints.clone()	Creates a clone of this RenderingHints object that has the same contents as this RenderingHints object.
Object	RenderingHints.get(Object key)	Returns the value to which the specified key is mapped.
Object	BorderLayout.getConstraints(Component comp)	Gets the constraints for the specified component
Object	Toolkit.getDesktopProperty(String propertyName)	Obtains a value for the specified desktop property.
Object[]	MediaTracker.getErrorsAny()	Returns a list of all media that have encountered an error.
Object[]	MediaTracker.getErrorsID(int id)	Returns a list of media with the specified ID that have encountered an error.
abstract Object	Image.getProperty(String name, ImageObserver observer)	Gets a property of this image by name.
abstract Object	Graphics2D.getRenderingHint(RenderingHints.Key hintKey)	Returns the value of a single preference for the rendering algorithms.
Object[]	Checkbox.getSelectedObjects()	Returns an array (length 1) containing the checkbox label or null if the checkbox is not selected.
Object[]	CheckboxMenuItem.getSelectedObjects()	Returns the an array (length 1) containing the checkbox menu item label or null if the checkbox is not selected.
Object[]	Choice.getSelectedObjects()	Returns an array (length 1) containing the currently selected item.
Object[]	ItemSelectable.getSelectedObjects()	Returns the selected items or null if no items are selected.
Object[]	List.getSelectedObjects()	Gets the selected items on this scrolling list in an array of Objects.
Object	Component.getTreeLock()	Gets this component's locking object (the object that owns the thread synchronization monitor) for AWT component-tree and layout operations.
protected Object	MenuComponent.getTreeLock()	Gets this component's locking object (the object that owns the thread synchronization monitor) for AWT component-tree and layout operations.
protected Object	Toolkit.lazilyLoadDesktopProperty(String name)	An opportunity to lazily evaluate desktop property values.
Object	RenderingHints.put(Object key, Object value)	Maps the specified key to the specified value in this RenderingHints object.
protected Object	AWTKeyStroke.readResolve()	Returns a cached instance of AWTKeyStroke (or a subclass of AWTKeyStroke) which is equal to this instance.
Object	RenderingHints.remove(Object key)	Removes the key and its corresponding value from this RenderingHints object.

Methods in java.awt that return types with arguments of type Object

Modifier and Type	Method	Description
Set<Map.Entry<Object,Object>>	RenderingHints.entrySet()	Returns a Set view of the mappings contained in this RenderingHints.
Set<Map.Entry<Object,Object>>	RenderingHints.entrySet()	Returns a Set view of the mappings contained in this RenderingHints.
Set<Object>	RenderingHints.keySet()	Returns a Set view of the Keys contained in this RenderingHints.
Collection<Object>	RenderingHints.values()	Returns a Collection view of the values contained in this RenderingHints.

Methods in java.awt with parameters of type Object

Modifier and Type	Method	Description
boolean	Component.action(Event evt, Object what)	Deprecated. As of JDK version 1.1, should register this component as ActionListener on component which fires action events.
void	Container.add(Component comp, Object constraints)	Adds the specified component to the end of this container.
void	Container.add(Component comp, Object constraints, int index)	Adds the specified component to this container with the specified constraints at the specified index.
protected void	Container.addImpl(Component comp, Object constraints, int index)	Adds the specified component to this container at the specified index.
protected void	ScrollPane.addImpl(Component comp, Object constraints, int index)	Adds the specified component to this scroll pane container.
void	BorderLayout.addLayoutComponent(Component comp, Object constraints)	Adds the specified component to the layout, using the specified constraint object.
void	CardLayout.addLayoutComponent(Component comp, Object constraints)	Adds the specified component to this card layout's internal table of names.
void	GridBagLayout.addLayoutComponent(Component comp, Object constraints)	Adds the specified component to the layout, using the specified constraints object.
void	LayoutManager2.addLayoutComponent(Component comp, Object constraints)	Adds the specified component to the layout, using the specified constraint object.
boolean	RenderingHints.containsKey(Object key)	Returns true if this RenderingHints contains a mapping for the specified key.
boolean	RenderingHints.containsValue(Object value)	Returns true if this RenderingHints maps one or more keys to the specified value.
boolean	AlphaComposite.equals(Object obj)	Determines whether the specified object is equal to this AlphaComposite.
boolean	AWTKeyStroke.equals(Object anObject)	Returns true if this object is identical to the specified object.
boolean	BasicStroke.equals(Object obj)	Tests if a specified object is equal to this BasicStroke by first testing if it is a BasicStroke and then comparing its width, join, cap, miter limit, dash, and dash phase attributes with those of this BasicStroke.
boolean	Color.equals(Object obj)	Determines whether another object is equal to this Color.
boolean	Dimension.equals(Object obj)	Checks whether two dimension objects have equal values.
boolean	DisplayMode.equals(Object dm)	Indicates whether some other object is "equal to" this one.
boolean	Font.equals(Object obj)	Compares this Font object to the specified Object.
boolean	Insets.equals(Object obj)	Checks whether two insets objects are equal.
boolean	JobAttributes.equals(Object obj)	Determines whether two JobAttributes are equal to each other.
boolean	MenuShortcut.equals(Object obj)	Returns whether this MenuShortcut is the same as another: equality is defined to mean that both MenuShortcuts use the same key and both either use or don't use the SHIFT key.
boolean	PageAttributes.equals(Object obj)	Determines whether two PageAttributes are equal to each other.
boolean	Point.equals(Object obj)	Determines whether or not two points are equal.
boolean	Rectangle.equals(Object obj)	Checks whether two rectangles are equal.
boolean	RenderingHints.equals(Object o)	Compares the specified Object with this RenderingHints for equality.
boolean	RenderingHints.Key.equals(Object o)	The equals method for all Key objects will return the same result as the equality operator '=='.
protected void	Component.firePropertyChange(String propertyName, Object oldValue, Object newValue)	Support for reporting bound property changes for Object properties.
protected void	KeyboardFocusManager.firePropertyChange(String propertyName, Object oldValue, Object newValue)	Fires a PropertyChangeEvent in response to a change in a bound property.
protected void	KeyboardFocusManager.fireVetoableChange(String propertyName, Object oldValue, Object newValue)	Fires a PropertyChangeEvent in response to a change in a vetoable property.
Object	RenderingHints.get(Object key)	Returns the value to which the specified key is mapped.
Component	BorderLayout.getLayoutComponent(Container target, Object constraints)	Returns the component that corresponds to the given constraint location based on the target Container's component orientation.
Component	BorderLayout.getLayoutComponent(Object constraints)	Gets the component that was added using the given constraint
boolean	Component.gotFocus(Event evt, Object what)	Deprecated. As of JDK version 1.1, replaced by processFocusEvent(FocusEvent).
abstract boolean	RenderingHints.Key.isCompatibleValue(Object val)	Returns true if the specified object is a valid value for this Key.
boolean	Component.lostFocus(Event evt, Object what)	Deprecated. As of JDK version 1.1, replaced by processFocusEvent(FocusEvent).
Object	RenderingHints.put(Object key, Object value)	Maps the specified key to the specified value in this RenderingHints object.
Object	RenderingHints.remove(Object key)	Removes the key and its corresponding value from this RenderingHints object.
protected void	Toolkit.setDesktopProperty(String name, Object newValue)	Sets the named desktop property to the specified value and fires a property change event to notify any listeners that the value has changed.
abstract void	Graphics2D.setRenderingHint(RenderingHints.Key hintKey, Object hintValue)	Sets the value of a single preference for the rendering algorithms.
void	AWTEvent.setSource(Object newSource)	Retargets an event to a new source.

Constructors in java.awt with parameters of type Object

Constructor	Description
AWTEvent(Object source, int id)	Constructs an AWTEvent object with the specified source object and type.
Event(Object target, int id, Object arg)	Deprecated. NOTE: The Event class is obsolete and is available only for backwards compatibility.
Event(Object target, long when, int id, int x, int y, int key, int modifiers)	Deprecated. NOTE: The Event class is obsolete and is available only for backwards compatibility.
Event(Object target, long when, int id, int x, int y, int key, int modifiers, Object arg)	Deprecated. NOTE: The Event class is obsolete and is available only for backwards compatibility.
RenderingHints(RenderingHints.Key key, Object value)	Constructs a new object with the specified key/value pair.

Uses of Object in java.awt.color

Subclasses of Object in java.awt.color

Modifier and Type	Class	Description
class	CMMException	This exception is thrown if the native CMM returns an error.
class	ColorSpace	This abstract class is used to serve as a color space tag to identify the specific color space of a Color object or, via a ColorModel object, of an Image, a BufferedImage, or a GraphicsDevice.
class	ICC_ColorSpace	The ICC_ColorSpace class is an implementation of the abstract ColorSpace class.
class	ICC_Profile	A representation of color profile data for device independent and device dependent color spaces based on the International Color Consortium Specification ICC.1:2001-12, File Format for Color Profiles, (see http://www.color.org).
class	ICC_ProfileGray	A subclass of the ICC_Profile class which represents profiles which meet the following criteria: the color space type of the profile is TYPE_GRAY and the profile includes the grayTRCTag and mediaWhitePointTag tags.
class	ICC_ProfileRGB	The ICC_ProfileRGB class is a subclass of the ICC_Profile class that represents profiles which meet the following criteria: The profile's color space type is RGB. The profile includes the redColorantTag, greenColorantTag, blueColorantTag, redTRCTag, greenTRCTag, blueTRCTag, and mediaWhitePointTag tags. The ICC_Profile getInstance method will return an ICC_ProfileRGB object when these conditions are met.
class	ProfileDataException	This exception is thrown when an error occurs in accessing or processing an ICC_Profile object.

Methods in java.awt.color that return Object

Modifier and Type	Method	Description
protected Object	ICC_Profile.readResolve()	Resolves instances being deserialized into instances registered with CMM.

Uses of Object in java.awt.datatransfer

Subclasses of Object in java.awt.datatransfer

Modifier and Type	Class	Description
class	Clipboard	A class that implements a mechanism to transfer data using cut/copy/paste operations.
class	DataFlavor	A DataFlavor provides meta information about data.
class	FlavorEvent	FlavorEvent is used to notify interested parties that available DataFlavors have changed in the Clipboard (the event source).
class	MimeTypeParseException	A class to encapsulate MimeType parsing related exceptions
class	StringSelection	A Transferable which implements the capability required to transfer a String.
class	SystemFlavorMap	The SystemFlavorMap is a configurable map between "natives" (Strings), which correspond to platform-specific data formats, and "flavors" (DataFlavors), which correspond to platform-independent MIME types.
class	UnsupportedFlavorException	Signals that the requested data is not supported in this flavor.

Methods in java.awt.datatransfer that return Object

Modifier and Type	Method	Description
Object	DataFlavor.clone()	Returns a clone of this DataFlavor.
Object	Clipboard.getData(DataFlavor flavor)	Returns an object representing the current contents of this clipboard in the specified DataFlavor.
Object	StringSelection.getTransferData(DataFlavor flavor)	Returns the Transferable's data in the requested DataFlavor if possible.
Object	Transferable.getTransferData(DataFlavor flavor)	Returns an object which represents the data to be transferred.

Methods in java.awt.datatransfer with parameters of type Object

Modifier and Type	Method	Description
boolean	DataFlavor.equals(Object o)	Indicates whether some other object is "equal to" this one.
Transferable	Clipboard.getContents(Object requestor)	Returns a transferable object representing the current contents of the clipboard.

Uses of Object in java.awt.desktop

Subclasses of Object in java.awt.desktop

Modifier and Type	Class	Description
class	AboutEvent	Event sent when the application is asked to open its about window.
class	AppEvent	AppEvents are sent to listeners and handlers installed on the Desktop.
class	AppForegroundEvent	Event sent when the application has become the foreground app, and when it is no longer the foreground app.
class	AppHiddenEvent	Event sent when the application has been hidden or shown.
class	AppReopenedEvent	Event sent when the application is asked to re-open itself.
class	FilesEvent	Auxiliary event containing a list of files.
class	OpenFilesEvent	Event sent when the app is asked to open a list of files.
class	OpenURIEvent	Event sent when the app is asked to open a URI.
class	PreferencesEvent	Event sent when the application is asked to open its preferences window.
class	PrintFilesEvent	Event sent when the app is asked to print a list of files.
class	QuitEvent	Event sent when the application is asked to quit.
class	ScreenSleepEvent	Event sent when the displays attached to the system enter and exit power save sleep.
class	SystemSleepEvent	Event sent when the system enters and exits power save sleep.
class	UserSessionEvent	Event sent when the user session has been changed.

Uses of Object in java.awt.dnd

Subclasses of Object in java.awt.dnd

Modifier and Type	Class	Description
class	DnDConstants	This class contains constant values representing the type of action(s) to be performed by a Drag and Drop operation.
class	DragGestureEvent	A DragGestureEvent is passed to DragGestureListener's dragGestureRecognized() method when a particular DragGestureRecognizer detects that a platform dependent drag initiating gesture has occurred on the Component that it is tracking.
class	DragGestureRecognizer	The DragGestureRecognizer is an abstract base class for the specification of a platform-dependent listener that can be associated with a particular Component in order to identify platform-dependent drag initiating gestures.
class	DragSource	The DragSource is the entity responsible for the initiation of the Drag and Drop operation, and may be used in a number of scenarios: 1 default instance per JVM for the lifetime of that JVM.
class	DragSourceAdapter	An abstract adapter class for receiving drag source events.
class	DragSourceContext	The DragSourceContext class is responsible for managing the initiator side of the Drag and Drop protocol.
class	DragSourceDragEvent	The DragSourceDragEvent is delivered from the DragSourceContextPeer, via the DragSourceContext, to the DragSourceListener registered with that DragSourceContext and with its associated DragSource.
class	DragSourceDropEvent	The DragSourceDropEvent is delivered from the DragSourceContextPeer, via the DragSourceContext, to the dragDropEnd method of DragSourceListeners registered with that DragSourceContext and with its associated DragSource.
class	DragSourceEvent	This class is the base class for DragSourceDragEvent and DragSourceDropEvent.
class	DropTarget	The DropTarget is associated with a Component when that Component wishes to accept drops during Drag and Drop operations.
protected static class	DropTarget.DropTargetAutoScroller	this protected nested class implements autoscrolling
class	DropTargetAdapter	An abstract adapter class for receiving drop target events.
class	DropTargetContext	A DropTargetContext is created whenever the logical cursor associated with a Drag and Drop operation coincides with the visible geometry of a Component associated with a DropTarget.
protected class	DropTargetContext.TransferableProxy	TransferableProxy is a helper inner class that implements Transferable interface and serves as a proxy for another Transferable object which represents data transfer for a particular drag-n-drop operation.
class	DropTargetDragEvent	The DropTargetDragEvent is delivered to a DropTargetListener via its dragEnter() and dragOver() methods.
class	DropTargetDropEvent	The DropTargetDropEvent is delivered via the DropTargetListener drop() method.
class	DropTargetEvent	The DropTargetEvent is the base class for both the DropTargetDragEvent and the DropTargetDropEvent.
class	InvalidDnDOperationException	This exception is thrown by various methods in the java.awt.dnd package.
class	MouseDragGestureRecognizer	This abstract subclass of DragGestureRecognizer defines a DragGestureRecognizer for mouse-based gestures.

Methods in java.awt.dnd that return Object

Modifier and Type	Method	Description
Object	DropTargetContext.TransferableProxy.getTransferData(DataFlavor df)	Returns an object which represents the data provided by the encapsulated transferable for the requested data flavor.
Object[]	DragGestureEvent.toArray()	Returns an Object array of the events comprising the drag gesture.
Object[]	DragGestureEvent.toArray(Object[] array)	Returns an array of the events comprising the drag gesture.

Methods in java.awt.dnd with parameters of type Object

Modifier and Type	Method	Description
Object[]	DragGestureEvent.toArray(Object[] array)	Returns an array of the events comprising the drag gesture.

Uses of Object in java.awt.event

Subclasses of Object in java.awt.event

Modifier and Type	Class	Description
class	ActionEvent	A semantic event which indicates that a component-defined action occurred.
class	AdjustmentEvent	The adjustment event emitted by Adjustable objects like Scrollbar and ScrollPane.
class	AWTEventListenerProxy	A class which extends the EventListenerProxy specifically for adding an AWTEventListener for a specific event mask.
class	ComponentAdapter	An abstract adapter class for receiving component events.
class	ComponentEvent	A low-level event which indicates that a component moved, changed size, or changed visibility (also, the root class for the other component-level events).
class	ContainerAdapter	An abstract adapter class for receiving container events.
class	ContainerEvent	A low-level event which indicates that a container's contents changed because a component was added or removed.
class	FocusAdapter	An abstract adapter class for receiving keyboard focus events.
class	FocusEvent	A low-level event which indicates that a Component has gained or lost the input focus.
class	HierarchyBoundsAdapter	An abstract adapter class for receiving ancestor moved and resized events.
class	HierarchyEvent	An event which indicates a change to the Component hierarchy to which Component belongs.
class	InputEvent	The root event class for all component-level input events.
class	InputMethodEvent	Input method events contain information about text that is being composed using an input method.
class	InvocationEvent	An event which executes the run() method on a Runnable when dispatched by the AWT event dispatcher thread.
class	ItemEvent	A semantic event which indicates that an item was selected or deselected.
class	KeyAdapter	An abstract adapter class for receiving keyboard events.
class	KeyEvent	An event which indicates that a keystroke occurred in a component.
class	MouseAdapter	An abstract adapter class for receiving mouse events.
class	MouseEvent	An event which indicates that a mouse action occurred in a component.
class	MouseMotionAdapter	An abstract adapter class for receiving mouse motion events.
class	MouseWheelEvent	An event which indicates that the mouse wheel was rotated in a component.
class	PaintEvent	The component-level paint event.
class	TextEvent	A semantic event which indicates that an object's text changed.
class	WindowAdapter	An abstract adapter class for receiving window events.
class	WindowEvent	A low-level event that indicates that a window has changed its status.

Fields in java.awt.event declared as Object

Modifier and Type	Field	Description
protected Object	InvocationEvent.notifier	The (potentially null) Object whose notifyAll() method will be called immediately after the Runnable.run() method has returned or thrown an exception or after the event was disposed.

Methods in java.awt.event that return Object

Modifier and Type	Method	Description
Object	ItemEvent.getItem()	Returns the item affected by the event.

Constructors in java.awt.event with parameters of type Object

Constructor	Description
ActionEvent(Object source, int id, String command)	Constructs an ActionEvent object.
ActionEvent(Object source, int id, String command, int modifiers)	Constructs an ActionEvent object with modifier keys.
ActionEvent(Object source, int id, String command, long when, int modifiers)	Constructs an ActionEvent object with the specified modifier keys and timestamp.
InvocationEvent(Object source, int id, Runnable runnable, Object notifier, boolean catchThrowables)	Constructs an InvocationEvent with the specified source and ID which will execute the runnable's run method when dispatched.
InvocationEvent(Object source, Runnable runnable)	Constructs an InvocationEvent with the specified source which will execute the runnable's run method when dispatched.
InvocationEvent(Object source, Runnable runnable, Object notifier, boolean catchThrowables)	Constructs an InvocationEvent with the specified source which will execute the runnable's run method when dispatched.
InvocationEvent(Object source, Runnable runnable, Runnable listener, boolean catchThrowables)	Constructs an InvocationEvent with the specified source which will execute the runnable's run method when dispatched.
ItemEvent(ItemSelectable source, int id, Object item, int stateChange)	Constructs an ItemEvent object.
TextEvent(Object source, int id)	Constructs a TextEvent object.

Uses of Object in java.awt.font

Subclasses of Object in java.awt.font

Modifier and Type	Class	Description
class	FontRenderContext	The FontRenderContext class is a container for the information needed to correctly measure text.
class	GlyphJustificationInfo	The GlyphJustificationInfo class represents information about the justification properties of a glyph.
class	GlyphMetrics	The GlyphMetrics class represents information for a single glyph.
class	GlyphVector	A GlyphVector object is a collection of glyphs containing geometric information for the placement of each glyph in a transformed coordinate space which corresponds to the device on which the GlyphVector is ultimately displayed.
class	GraphicAttribute	This class is used with the CHAR_REPLACEMENT attribute.
class	ImageGraphicAttribute	The ImageGraphicAttribute class is an implementation of GraphicAttribute which draws images in a TextLayout.
class	LayoutPath	LayoutPath provides a mapping between locations relative to the baseline and points in user space.
class	LineBreakMeasurer	The LineBreakMeasurer class allows styled text to be broken into lines (or segments) that fit within a particular visual advance.
class	LineMetrics	The LineMetrics class allows access to the metrics needed to layout characters along a line and to layout of a set of lines.
class	NumericShaper	The NumericShaper class is used to convert Latin-1 (European) digits to other Unicode decimal digits.
class	ShapeGraphicAttribute	The ShapeGraphicAttribute class is an implementation of GraphicAttribute that draws shapes in a TextLayout.
class	TextAttribute	The TextAttribute class defines attribute keys and attribute values used for text rendering.
class	TextHitInfo	The TextHitInfo class represents a character position in a text model, and a bias, or "side," of the character.
class	TextLayout	TextLayout is an immutable graphical representation of styled character data.
static class	TextLayout.CaretPolicy	Defines a policy for determining the strong caret location.
class	TextMeasurer	The TextMeasurer class provides the primitive operations needed for line break: measuring up to a given advance, determining the advance of a range of characters, and generating a TextLayout for a range of characters.
class	TransformAttribute	The TransformAttribute class provides an immutable wrapper for a transform so that it is safe to use as an attribute.

Methods in java.awt.font that return Object

Modifier and Type	Method	Description
protected Object	TextLayout.clone()	Creates a copy of this TextLayout.
protected Object	TextMeasurer.clone()
Object	FontRenderContext.getAntiAliasingHint()	Return the text anti-aliasing rendering mode hint used in this FontRenderContext.
Object	FontRenderContext.getFractionalMetricsHint()	Return the text fractional metrics rendering mode hint used in this FontRenderContext.
protected Object	TextAttribute.readResolve()	Resolves instances being deserialized to the predefined constants.

Methods in java.awt.font with parameters of type Object

Modifier and Type	Method	Description
boolean	FontRenderContext.equals(Object obj)	Return true if obj is an instance of FontRenderContext and has the same transform, antialiasing, and fractional metrics values as this.
boolean	ImageGraphicAttribute.equals(Object rhs)	Compares this ImageGraphicAttribute to the specified Object.
boolean	NumericShaper.equals(Object o)	Returns true if the specified object is an instance of NumericShaper and shapes identically to this one, regardless of the range representations, the bit mask or the enum.
boolean	ShapeGraphicAttribute.equals(Object rhs)	Compares this ShapeGraphicAttribute to the specified Object.
boolean	TextHitInfo.equals(Object obj)	Returns true if the specified Object is a TextHitInfo and equals this TextHitInfo.
boolean	TransformAttribute.equals(Object rhs)	Returns true if rhs is a TransformAttribute whose transform is equal to this TransformAttribute's transform.

Constructors in java.awt.font with parameters of type Object

Constructor	Description
FontRenderContext(AffineTransform tx, Object aaHint, Object fmHint)	Constructs a FontRenderContext object from an optional AffineTransform and two Object values that determine if the newly constructed object has anti-aliasing or fractional metrics.

Uses of Object in java.awt.geom

Subclasses of Object in java.awt.geom

Modifier and Type	Class	Description
class	AffineTransform	The AffineTransform class represents a 2D affine transform that performs a linear mapping from 2D coordinates to other 2D coordinates that preserves the "straightness" and "parallelness" of lines.
class	Arc2D	Arc2D is the abstract superclass for all objects that store a 2D arc defined by a framing rectangle, start angle, angular extent (length of the arc), and a closure type (OPEN, CHORD, or PIE).
static class	Arc2D.Double	This class defines an arc specified in double precision.
static class	Arc2D.Float	This class defines an arc specified in float precision.
class	Area	An Area object stores and manipulates a resolution-independent description of an enclosed area of 2-dimensional space.
class	CubicCurve2D	The CubicCurve2D class defines a cubic parametric curve segment in (x,y) coordinate space.
static class	CubicCurve2D.Double	A cubic parametric curve segment specified with double coordinates.
static class	CubicCurve2D.Float	A cubic parametric curve segment specified with float coordinates.
class	Dimension2D	The Dimension2D class is to encapsulate a width and a height dimension.
class	Ellipse2D	The Ellipse2D class describes an ellipse that is defined by a framing rectangle.
static class	Ellipse2D.Double	The Double class defines an ellipse specified in double precision.
static class	Ellipse2D.Float	The Float class defines an ellipse specified in float precision.
class	FlatteningPathIterator	The FlatteningPathIterator class returns a flattened view of another PathIterator object.
class	GeneralPath	The GeneralPath class represents a geometric path constructed from straight lines, and quadratic and cubic (Bézier) curves.
class	IllegalPathStateException	The IllegalPathStateException represents an exception that is thrown if an operation is performed on a path that is in an illegal state with respect to the particular operation being performed, such as appending a path segment to a GeneralPath without an initial moveto.
class	Line2D	This Line2D represents a line segment in (x,y) coordinate space.
static class	Line2D.Double	A line segment specified with double coordinates.
static class	Line2D.Float	A line segment specified with float coordinates.
class	NoninvertibleTransformException	The NoninvertibleTransformException class represents an exception that is thrown if an operation is performed requiring the inverse of an AffineTransform object but the AffineTransform is in a non-invertible state.
class	Path2D	The Path2D class provides a simple, yet flexible shape which represents an arbitrary geometric path.
static class	Path2D.Double	The Double class defines a geometric path with coordinates stored in double precision floating point.
static class	Path2D.Float	The Float class defines a geometric path with coordinates stored in single precision floating point.
class	Point2D	The Point2D class defines a point representing a location in (x,y) coordinate space.
static class	Point2D.Double	The Double class defines a point specified in double precision.
static class	Point2D.Float	The Float class defines a point specified in float precision.
class	QuadCurve2D	The QuadCurve2D class defines a quadratic parametric curve segment in (x,y) coordinate space.
static class	QuadCurve2D.Double	A quadratic parametric curve segment specified with double coordinates.
static class	QuadCurve2D.Float	A quadratic parametric curve segment specified with float coordinates.
class	Rectangle2D	The Rectangle2D class describes a rectangle defined by a location (x,y) and dimension (w x h).
static class	Rectangle2D.Double	The Double class defines a rectangle specified in double coordinates.
static class	Rectangle2D.Float	The Float class defines a rectangle specified in float coordinates.
class	RectangularShape	RectangularShape is the base class for a number of Shape objects whose geometry is defined by a rectangular frame.
class	RoundRectangle2D	The RoundRectangle2D class defines a rectangle with rounded corners defined by a location (x,y), a dimension (w x h), and the width and height of an arc with which to round the corners.
static class	RoundRectangle2D.Double	The Double class defines a rectangle with rounded corners all specified in double coordinates.
static class	RoundRectangle2D.Float	The Float class defines a rectangle with rounded corners all specified in float coordinates.

Methods in java.awt.geom that return Object

Modifier and Type	Method	Description
Object	AffineTransform.clone()	Returns a copy of this AffineTransform object.
Object	Area.clone()	Returns an exact copy of this Area object.
Object	CubicCurve2D.clone()	Creates a new object of the same class as this object.
Object	Dimension2D.clone()	Creates a new object of the same class as this object.
Object	Line2D.clone()	Creates a new object of the same class as this object.
abstract Object	Path2D.clone()	Creates a new object of the same class as this object.
Object	Path2D.Double.clone()	Creates a new object of the same class as this object.
Object	Path2D.Float.clone()	Creates a new object of the same class as this object.
Object	Point2D.clone()	Creates a new object of the same class and with the same contents as this object.
Object	QuadCurve2D.clone()	Creates a new object of the same class and with the same contents as this object.
Object	RectangularShape.clone()	Creates a new object of the same class and with the same contents as this object.

Methods in java.awt.geom with parameters of type Object

Modifier and Type	Method	Description
boolean	AffineTransform.equals(Object obj)	Returns true if this AffineTransform represents the same affine coordinate transform as the specified argument.
boolean	Arc2D.equals(Object obj)	Determines whether or not the specified Object is equal to this Arc2D.
boolean	Ellipse2D.equals(Object obj)	Determines whether or not the specified Object is equal to this Ellipse2D.
boolean	Point2D.equals(Object obj)	Determines whether or not two points are equal.
boolean	Rectangle2D.equals(Object obj)	Determines whether or not the specified Object is equal to this Rectangle2D.
boolean	RoundRectangle2D.equals(Object obj)	Determines whether or not the specified Object is equal to this RoundRectangle2D.

Uses of Object in java.awt.im

Subclasses of Object in java.awt.im

Modifier and Type	Class	Description
class	InputContext	Provides methods to control text input facilities such as input methods and keyboard layouts.
class	InputMethodHighlight	An InputMethodHighlight is used to describe the highlight attributes of text being composed.
class	InputSubset	Defines additional Unicode subsets for use by input methods.

Methods in java.awt.im that return Object

Modifier and Type	Method	Description
Object	InputContext.getInputMethodControlObject()	Returns a control object from the current input method, or null.

Uses of Object in java.awt.im.spi

Methods in java.awt.im.spi that return Object

Modifier and Type	Method	Description
Object	InputMethod.getControlObject()	Returns a control object from this input method, or null.

Uses of Object in java.awt.image

Subclasses of Object in java.awt.image

Modifier and Type	Class	Description
class	AbstractMultiResolutionImage	This class provides default implementations of several Image methods for classes that want to implement the interface.
class	AffineTransformOp	This class uses an affine transform to perform a linear mapping from 2D coordinates in the source image or Raster to 2D coordinates in the destination image or Raster.
class	AreaAveragingScaleFilter	An ImageFilter class for scaling images using a simple area averaging algorithm that produces smoother results than the nearest neighbor algorithm.
class	BandCombineOp	This class performs an arbitrary linear combination of the bands in a Raster, using a specified matrix.
class	BandedSampleModel	This class represents image data which is stored in a band interleaved fashion and for which each sample of a pixel occupies one data element of the DataBuffer.
class	BaseMultiResolutionImage	This class is an array-based implementation of the AbstractMultiResolutionImage class.
class	BufferedImage	The BufferedImage subclass describes an Image with an accessible buffer of image data.
class	BufferedImageFilter	The BufferedImageFilter class subclasses an ImageFilter to provide a simple means of using a single-source/single-destination image operator (BufferedImageOp) to filter a BufferedImage in the Image Producer/Consumer/Observer paradigm.
class	BufferStrategy	The BufferStrategy class represents the mechanism with which to organize complex memory on a particular Canvas or Window.
class	ByteLookupTable	This class defines a lookup table object.
class	ColorConvertOp	This class performs a pixel-by-pixel color conversion of the data in the source image.
class	ColorModel	The ColorModel abstract class encapsulates the methods for translating a pixel value to color components (for example, red, green, and blue) and an alpha component.
class	ComponentColorModel	A ColorModel class that works with pixel values that represent color and alpha information as separate samples and that store each sample in a separate data element.
class	ComponentSampleModel	This class represents image data which is stored such that each sample of a pixel occupies one data element of the DataBuffer.
class	ConvolveOp	This class implements a convolution from the source to the destination.
class	CropImageFilter	An ImageFilter class for cropping images.
class	DataBuffer	This class exists to wrap one or more data arrays.
class	DataBufferByte	This class extends DataBuffer and stores data internally as bytes.
class	DataBufferDouble	This class extends DataBuffer and stores data internally in double form.
class	DataBufferFloat	This class extends DataBuffer and stores data internally in float form.
class	DataBufferInt	This class extends DataBuffer and stores data internally as integers.
class	DataBufferShort	This class extends DataBuffer and stores data internally as shorts.
class	DataBufferUShort	This class extends DataBuffer and stores data internally as shorts.
class	DirectColorModel	The DirectColorModel class is a ColorModel class that works with pixel values that represent RGB color and alpha information as separate samples and that pack all samples for a single pixel into a single int, short, or byte quantity.
class	FilteredImageSource	This class is an implementation of the ImageProducer interface which takes an existing image and a filter object and uses them to produce image data for a new filtered version of the original image.
class	ImageFilter	This class implements a filter for the set of interface methods that are used to deliver data from an ImageProducer to an ImageConsumer.
class	ImagingOpException	The ImagingOpException is thrown if one of the BufferedImageOp or RasterOp filter methods cannot process the image.
class	IndexColorModel	The IndexColorModel class is a ColorModel class that works with pixel values consisting of a single sample that is an index into a fixed colormap in the default sRGB color space.
class	Kernel	The Kernel class defines a matrix that describes how a specified pixel and its surrounding pixels affect the value computed for the pixel's position in the output image of a filtering operation.
class	LookupOp	This class implements a lookup operation from the source to the destination.
class	LookupTable	This abstract class defines a lookup table object.
class	MemoryImageSource	This class is an implementation of the ImageProducer interface which uses an array to produce pixel values for an Image.
class	MultiPixelPackedSampleModel	The MultiPixelPackedSampleModel class represents one-banded images and can pack multiple one-sample pixels into one data element.
class	PackedColorModel	The PackedColorModel class is an abstract ColorModel class that works with pixel values which represent color and alpha information as separate samples and which pack all samples for a single pixel into a single int, short, or byte quantity.
class	PixelGrabber	The PixelGrabber class implements an ImageConsumer which can be attached to an Image or ImageProducer object to retrieve a subset of the pixels in that image.
class	PixelInterleavedSampleModel	This class represents image data which is stored in a pixel interleaved fashion and for which each sample of a pixel occupies one data element of the DataBuffer.
class	Raster	A class representing a rectangular array of pixels.
class	RasterFormatException	The RasterFormatException is thrown if there is invalid layout information in the Raster.
class	ReplicateScaleFilter	An ImageFilter class for scaling images using the simplest algorithm.
class	RescaleOp	This class performs a pixel-by-pixel rescaling of the data in the source image by multiplying the sample values for each pixel by a scale factor and then adding an offset.
class	RGBImageFilter	This class provides an easy way to create an ImageFilter which modifies the pixels of an image in the default RGB ColorModel.
class	SampleModel	This abstract class defines an interface for extracting samples of pixels in an image.
class	ShortLookupTable	This class defines a lookup table object.
class	SinglePixelPackedSampleModel	This class represents pixel data packed such that the N samples which make up a single pixel are stored in a single data array element, and each data data array element holds samples for only one pixel.
class	VolatileImage	VolatileImage is an image which can lose its contents at any time due to circumstances beyond the control of the application (e.g., situations caused by the operating system or by other applications).
class	WritableRaster	This class extends Raster to provide pixel writing capabilities.

Fields in java.awt.image declared as Object

Modifier and Type	Field	Description
protected Object	ReplicateScaleFilter.outpixbuf	A byte array initialized with a size of ReplicateScaleFilter.destWidth and used to deliver a row of pixel data to the ImageConsumer.

Methods in java.awt.image that return Object

Modifier and Type	Method	Description
Object	ImageFilter.clone()	Clones this object.
Object	Kernel.clone()	Clones this object.
Object	BandedSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data)	Returns data for a single pixel in a primitive array of type TransferType.
Object	ColorModel.getDataElements(float[] normComponents, int normOffset, Object obj)	Returns a data element array representation of a pixel in this ColorModel, given an array of normalized color/alpha components.
Object	ColorModel.getDataElements(int[] components, int offset, Object obj)	Returns a data element array representation of a pixel in this ColorModel, given an array of unnormalized color/alpha components.
Object	ColorModel.getDataElements(int rgb, Object pixel)	Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
Object	ComponentColorModel.getDataElements(float[] normComponents, int normOffset, Object obj)	Returns a data element array representation of a pixel in this ColorModel, given an array of normalized color/alpha components.
Object	ComponentColorModel.getDataElements(int[] components, int offset, Object obj)	Returns a data element array representation of a pixel in this ColorModel, given an array of unnormalized color/alpha components.
Object	ComponentColorModel.getDataElements(int rgb, Object pixel)	Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
Object	ComponentSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data)	Returns data for a single pixel in a primitive array of type TransferType.
Object	DirectColorModel.getDataElements(int[] components, int offset, Object obj)	Returns a data element array representation of a pixel in this ColorModel, given an array of unnormalized color/alpha components.
Object	DirectColorModel.getDataElements(int rgb, Object pixel)	Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
Object	IndexColorModel.getDataElements(int[] components, int offset, Object pixel)	Returns a data element array representation of a pixel in this ColorModel given an array of unnormalized color/alpha components.
Object	IndexColorModel.getDataElements(int rgb, Object pixel)	Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
Object	MultiPixelPackedSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data)	Returns data for a single pixel in a primitive array of type TransferType.
Object	Raster.getDataElements(int x, int y, int w, int h, Object outData)	Returns the pixel data for the specified rectangle of pixels in a primitive array of type TransferType.
Object	Raster.getDataElements(int x, int y, Object outData)	Returns data for a single pixel in a primitive array of type TransferType.
Object	SampleModel.getDataElements(int x, int y, int w, int h, Object obj, DataBuffer data)	Returns the pixel data for the specified rectangle of pixels in a primitive array of type TransferType.
abstract Object	SampleModel.getDataElements(int x, int y, Object obj, DataBuffer data)	Returns data for a single pixel in a primitive array of type TransferType.
Object	SinglePixelPackedSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data)	Returns data for a single pixel in a primitive array of type TransferType.
Object	PixelGrabber.getPixels()	Get the pixel buffer.
Object	AbstractMultiResolutionImage.getProperty(String name, ImageObserver observer)	This method simply delegates to the same method on the base image and it is equivalent to: getBaseImage().getProperty(name, observer).
Object	BufferedImage.getProperty(String name)	Returns a property of the image by name.
Object	BufferedImage.getProperty(String name, ImageObserver observer)	Returns a property of the image by name.
Object	RenderedImage.getProperty(String name)	Gets a property from the property set of this image.

Methods in java.awt.image with parameters of type Object

Modifier and Type	Method	Description
boolean	ColorModel.equals(Object obj)	This method simply delegates to the default implementation in Object which is identical to an == test since this class cannot enforce the issues of a proper equality test among multiple independent subclass branches.
boolean	ComponentColorModel.equals(Object obj)	Tests if the specified Object is an instance of ComponentColorModel and equals this ComponentColorModel.
boolean	ComponentSampleModel.equals(Object o)
boolean	IndexColorModel.equals(Object obj)	Tests if the specified Object is an instance of IndexColorModel and if it equals this IndexColorModel
boolean	MultiPixelPackedSampleModel.equals(Object o)
boolean	PackedColorModel.equals(Object obj)	Tests if the specified Object is an instance of PackedColorModel and equals this PackedColorModel.
boolean	SinglePixelPackedSampleModel.equals(Object o)
int	ColorModel.getAlpha(Object inData)	Returns the alpha component for the specified pixel, scaled from 0 to 255.
int	ComponentColorModel.getAlpha(Object inData)	Returns the alpha component for the specified pixel, scaled from 0 to 255.
int	DirectColorModel.getAlpha(Object inData)	Returns the alpha component for the specified pixel, scaled from 0 to 255.
int	ColorModel.getBlue(Object inData)	Returns the blue color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	ComponentColorModel.getBlue(Object inData)	Returns the blue color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	DirectColorModel.getBlue(Object inData)	Returns the blue color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int[]	ColorModel.getComponents(Object pixel, int[] components, int offset)	Returns an array of unnormalized color/alpha components given a pixel in this ColorModel.
int[]	ComponentColorModel.getComponents(Object pixel, int[] components, int offset)	Returns an array of unnormalized color/alpha components given a pixel in this ColorModel.
int[]	DirectColorModel.getComponents(Object pixel, int[] components, int offset)	Returns an array of unnormalized color/alpha components given a pixel in this ColorModel.
int[]	IndexColorModel.getComponents(Object pixel, int[] components, int offset)	Returns an array of unnormalized color/alpha components for a specified pixel in this ColorModel.
Object	BandedSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data)	Returns data for a single pixel in a primitive array of type TransferType.
Object	ColorModel.getDataElements(float[] normComponents, int normOffset, Object obj)	Returns a data element array representation of a pixel in this ColorModel, given an array of normalized color/alpha components.
Object	ColorModel.getDataElements(int[] components, int offset, Object obj)	Returns a data element array representation of a pixel in this ColorModel, given an array of unnormalized color/alpha components.
Object	ColorModel.getDataElements(int rgb, Object pixel)	Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
Object	ComponentColorModel.getDataElements(float[] normComponents, int normOffset, Object obj)	Returns a data element array representation of a pixel in this ColorModel, given an array of normalized color/alpha components.
Object	ComponentColorModel.getDataElements(int[] components, int offset, Object obj)	Returns a data element array representation of a pixel in this ColorModel, given an array of unnormalized color/alpha components.
Object	ComponentColorModel.getDataElements(int rgb, Object pixel)	Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
Object	ComponentSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data)	Returns data for a single pixel in a primitive array of type TransferType.
Object	DirectColorModel.getDataElements(int[] components, int offset, Object obj)	Returns a data element array representation of a pixel in this ColorModel, given an array of unnormalized color/alpha components.
Object	DirectColorModel.getDataElements(int rgb, Object pixel)	Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
Object	IndexColorModel.getDataElements(int[] components, int offset, Object pixel)	Returns a data element array representation of a pixel in this ColorModel given an array of unnormalized color/alpha components.
Object	IndexColorModel.getDataElements(int rgb, Object pixel)	Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
Object	MultiPixelPackedSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data)	Returns data for a single pixel in a primitive array of type TransferType.
Object	Raster.getDataElements(int x, int y, int w, int h, Object outData)	Returns the pixel data for the specified rectangle of pixels in a primitive array of type TransferType.
Object	Raster.getDataElements(int x, int y, Object outData)	Returns data for a single pixel in a primitive array of type TransferType.
Object	SampleModel.getDataElements(int x, int y, int w, int h, Object obj, DataBuffer data)	Returns the pixel data for the specified rectangle of pixels in a primitive array of type TransferType.
abstract Object	SampleModel.getDataElements(int x, int y, Object obj, DataBuffer data)	Returns data for a single pixel in a primitive array of type TransferType.
Object	SinglePixelPackedSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data)	Returns data for a single pixel in a primitive array of type TransferType.
int	ColorModel.getGreen(Object inData)	Returns the green color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	ComponentColorModel.getGreen(Object inData)	Returns the green color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	DirectColorModel.getGreen(Object inData)	Returns the green color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
float[]	ColorModel.getNormalizedComponents(Object pixel, float[] normComponents, int normOffset)	Returns an array of all of the color/alpha components in normalized form, given a pixel in this ColorModel.
float[]	ComponentColorModel.getNormalizedComponents(Object pixel, float[] normComponents, int normOffset)	Returns an array of all of the color/alpha components in normalized form, given a pixel in this ColorModel.
int	ColorModel.getRed(Object inData)	Returns the red color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	ComponentColorModel.getRed(Object inData)	Returns the red color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	DirectColorModel.getRed(Object inData)	Returns the red color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	ColorModel.getRGB(Object inData)	Returns the color/alpha components for the specified pixel in the default RGB color model format.
int	ComponentColorModel.getRGB(Object inData)	Returns the color/alpha components for the specified pixel in the default RGB color model format.
int	DirectColorModel.getRGB(Object inData)	Returns the color/alpha components for the specified pixel in the default RGB color model format.
void	BandedSampleModel.setDataElements(int x, int y, Object obj, DataBuffer data)	Sets the data for a single pixel in the specified DataBuffer from a primitive array of type TransferType.
void	ComponentSampleModel.setDataElements(int x, int y, Object obj, DataBuffer data)	Sets the data for a single pixel in the specified DataBuffer from a primitive array of type TransferType.
void	MultiPixelPackedSampleModel.setDataElements(int x, int y, Object obj, DataBuffer data)	Sets the data for a single pixel in the specified DataBuffer from a primitive array of type TransferType.
void	SampleModel.setDataElements(int x, int y, int w, int h, Object obj, DataBuffer data)	Sets the data for a rectangle of pixels in the specified DataBuffer from a primitive array of type TransferType.
abstract void	SampleModel.setDataElements(int x, int y, Object obj, DataBuffer data)	Sets the data for a single pixel in the specified DataBuffer from a primitive array of type TransferType.
void	SinglePixelPackedSampleModel.setDataElements(int x, int y, Object obj, DataBuffer data)	Sets the data for a single pixel in the specified DataBuffer from a primitive array of type TransferType.
void	WritableRaster.setDataElements(int x, int y, int w, int h, Object inData)	Sets the data for a rectangle of pixels from a primitive array of type TransferType.
void	WritableRaster.setDataElements(int x, int y, Object inData)	Sets the data for a single pixel from a primitive array of type TransferType.

Uses of Object in java.awt.image.renderable

Subclasses of Object in java.awt.image.renderable

Modifier and Type	Class	Description
class	ParameterBlock	A ParameterBlock encapsulates all the information about sources and parameters (Objects) required by a RenderableImageOp, or other classes that process images.
class	RenderableImageOp	This class handles the renderable aspects of an operation with help from its associated instance of a ContextualRenderedImageFactory.
class	RenderableImageProducer	An adapter class that implements ImageProducer to allow the asynchronous production of a RenderableImage.
class	RenderContext	A RenderContext encapsulates the information needed to produce a specific rendering from a RenderableImage.

Fields in java.awt.image.renderable with type parameters of type Object

Modifier and Type	Field	Description
protected Vector<Object>	ParameterBlock.parameters	A Vector of non-source parameters, stored as arbitrary Objects.
protected Vector<Object>	ParameterBlock.sources	A Vector of sources, stored as arbitrary Objects.

Methods in java.awt.image.renderable that return Object

Modifier and Type	Method	Description
Object	ParameterBlock.clone()	Creates a copy of a ParameterBlock.
Object	RenderContext.clone()	Makes a copy of a RenderContext.
Object	ParameterBlock.getObjectParameter(int index)	Gets a parameter as an object.
Object	ContextualRenderedImageFactory.getProperty(ParameterBlock paramBlock, String name)	Gets the appropriate instance of the property specified by the name parameter.
Object	RenderableImage.getProperty(String name)	Gets a property from the property set of this image.
Object	RenderableImageOp.getProperty(String name)	Gets a property from the property set of this image.
Object	ParameterBlock.getSource(int index)	Returns a source as a general Object.
Object	ParameterBlock.shallowClone()	Creates a shallow copy of a ParameterBlock.

Methods in java.awt.image.renderable that return types with arguments of type Object

Modifier and Type	Method	Description
Vector<Object>	ParameterBlock.getParameters()	Returns the entire Vector of parameters.
Vector<Object>	ParameterBlock.getSources()	Returns the entire Vector of sources.

Methods in java.awt.image.renderable with parameters of type Object

Modifier and Type	Method	Description
ParameterBlock	ParameterBlock.add(Object obj)	Adds an object to the list of parameters.
ParameterBlock	ParameterBlock.addSource(Object source)	Adds an image to end of the list of sources.
ParameterBlock	ParameterBlock.set(Object obj, int index)	Replaces an Object in the list of parameters.
ParameterBlock	ParameterBlock.setSource(Object source, int index)	Replaces an entry in the list of source with a new source.

Method parameters in java.awt.image.renderable with type arguments of type Object

Modifier and Type	Method	Description
void	ParameterBlock.setParameters(Vector<Object> parameters)	Sets the entire Vector of parameters to a given Vector.
void	ParameterBlock.setSources(Vector<Object> sources)	Sets the entire Vector of sources to a given Vector.

Constructor parameters in java.awt.image.renderable with type arguments of type Object

Constructor	Description
ParameterBlock(Vector<Object> sources)	Constructs a ParameterBlock with a given Vector of sources.
ParameterBlock(Vector<Object> sources, Vector<Object> parameters)	Constructs a ParameterBlock with a given Vector of sources and Vector of parameters.

Uses of Object in java.awt.print

Subclasses of Object in java.awt.print

Modifier and Type	Class	Description
class	Book	The Book class provides a representation of a document in which pages may have different page formats and page painters.
class	PageFormat	The PageFormat class describes the size and orientation of a page to be printed.
class	Paper	The Paper class describes the physical characteristics of a piece of paper.
class	PrinterAbortException	The PrinterAbortException class is a subclass of PrinterException and is used to indicate that a user or application has terminated the print job while it was in the process of printing.
class	PrinterException	The PrinterException class and its subclasses are used to indicate that an exceptional condition has occurred in the print system.
class	PrinterIOException	The PrinterIOException class is a subclass of PrinterException and is used to indicate that an IO error of some sort has occurred while printing.
class	PrinterJob	The PrinterJob class is the principal class that controls printing.

Methods in java.awt.print that return Object

Modifier and Type	Method	Description
Object	PageFormat.clone()	Makes a copy of this PageFormat with the same contents as this PageFormat.
Object	Paper.clone()	Creates a copy of this Paper with the same contents as this Paper.

Uses of Object in java.beans

Subclasses of Object in java.beans

Modifier and Type	Class	Description
class	BeanDescriptor	A BeanDescriptor provides global information about a "bean", including its Java class, its displayName, etc.
class	Beans	This class provides some general purpose beans control methods.
class	DefaultPersistenceDelegate	The DefaultPersistenceDelegate is a concrete implementation of the abstract PersistenceDelegate class and is the delegate used by default for classes about which no information is available.
class	Encoder	An Encoder is a class which can be used to create files or streams that encode the state of a collection of JavaBeans in terms of their public APIs.
class	EventHandler	The EventHandler class provides support for dynamically generating event listeners whose methods execute a simple statement involving an incoming event object and a target object.
class	EventSetDescriptor	An EventSetDescriptor describes a group of events that a given Java bean fires.
class	Expression	An Expression object represents a primitive expression in which a single method is applied to a target and a set of arguments to return a result - as in "a.getFoo()".
class	FeatureDescriptor	The FeatureDescriptor class is the common baseclass for PropertyDescriptor, EventSetDescriptor, and MethodDescriptor, etc.
class	IndexedPropertyChangeEvent	An "IndexedPropertyChange" event gets delivered whenever a component that conforms to the JavaBeans™ specification (a "bean") changes a bound indexed property.
class	IndexedPropertyDescriptor	An IndexedPropertyDescriptor describes a property that acts like an array and has an indexed read and/or indexed write method to access specific elements of the array.
class	IntrospectionException	Thrown when an exception happens during Introspection.
class	Introspector	The Introspector class provides a standard way for tools to learn about the properties, events, and methods supported by a target Java Bean.
class	MethodDescriptor	A MethodDescriptor describes a particular method that a Java Bean supports for external access from other components.
class	ParameterDescriptor	The ParameterDescriptor class allows bean implementors to provide additional information on each of their parameters, beyond the low level type information provided by the java.lang.reflect.Method class.
class	PersistenceDelegate	The PersistenceDelegate class takes the responsibility for expressing the state of an instance of a given class in terms of the methods in the class's public API.
class	PropertyChangeEvent	A "PropertyChange" event gets delivered whenever a bean changes a "bound" or "constrained" property.
class	PropertyChangeListenerProxy	A class which extends the EventListenerProxy specifically for adding a PropertyChangeListener with a "bound" property.
class	PropertyChangeSupport	This is a utility class that can be used by beans that support bound properties.
class	PropertyDescriptor	A PropertyDescriptor describes one property that a Java Bean exports via a pair of accessor methods.
class	PropertyEditorManager	The PropertyEditorManager can be used to locate a property editor for any given type name.
class	PropertyEditorSupport	This is a support class to help build property editors.
class	PropertyVetoException	A PropertyVetoException is thrown when a proposed change to a property represents an unacceptable value.
class	SimpleBeanInfo	This is a support class to make it easier for people to provide BeanInfo classes.
class	Statement	A Statement object represents a primitive statement in which a single method is applied to a target and a set of arguments - as in "a.setFoo(b)".
class	VetoableChangeListenerProxy	A class which extends the EventListenerProxy specifically for adding a VetoableChangeListener with a "constrained" property.
class	VetoableChangeSupport	This is a utility class that can be used by beans that support constrained properties.
class	XMLDecoder	The XMLDecoder class is used to read XML documents created using the XMLEncoder and is used just like the ObjectInputStream.
class	XMLEncoder	The XMLEncoder class is a complementary alternative to the ObjectOutputStream and can used to generate a textual representation of a JavaBean in the same way that the ObjectOutputStream can be used to create binary representation of Serializable objects.

Methods in java.beans that return Object

Modifier and Type	Method	Description
Object	Encoder.get(Object oldInstance)	Returns a tentative value for oldInstance in the environment created by this stream.
Object[]	Statement.getArguments()	Returns the arguments for the method to invoke.
static Object	Beans.getInstanceOf(Object bean, Class<?> targetType)	From a given bean, obtain an object representing a specified type view of that source object.
Object	PropertyChangeEvent.getNewValue()	Gets the new value for the property, expressed as an Object.
Object	PropertyChangeEvent.getOldValue()	Gets the old value for the property, expressed as an Object.
Object	XMLDecoder.getOwner()	Gets the owner of this decoder.
Object	XMLEncoder.getOwner()	Gets the owner of this encoder.
Object	PropertyChangeEvent.getPropagationId()	The "propagationId" field is reserved for future use.
Object	PropertyEditorSupport.getSource()	Returns the bean that is used as the source of events.
Object	EventHandler.getTarget()	Returns the object to which this event handler will send a message.
Object	Statement.getTarget()	Returns the target object of this statement.
Object	Expression.getValue()	If the value property of this instance is not already set, this method dynamically finds the method with the specified methodName on this target with these arguments and calls it.
Object	FeatureDescriptor.getValue(String attributeName)	Retrieve a named attribute with this feature.
Object	PropertyEditor.getValue()	Gets the property value.
Object	PropertyEditorSupport.getValue()	Gets the value of the property.
static Object	Beans.instantiate(ClassLoader cls, String beanName)	Instantiate a JavaBean.
static Object	Beans.instantiate(ClassLoader cls, String beanName, BeanContext beanContext)	Instantiate a JavaBean.
static Object	Beans.instantiate(ClassLoader cls, String beanName, BeanContext beanContext, AppletInitializer initializer)	Deprecated. It is recommended to use Beans.instantiate(ClassLoader, String, BeanContext), because the Applet API is deprecated. See the java.applet package documentation for further information.
Object	EventHandler.invoke(Object proxy, Method method, Object[] arguments)	Extract the appropriate property value from the event and pass it to the action associated with this EventHandler.
Object	XMLDecoder.readObject()	Reads the next object from the underlying input stream.
Object	Encoder.remove(Object oldInstance)	Removes the entry for this instance, returning the old entry.

Methods in java.beans with parameters of type Object

Modifier and Type	Method	Description
static <T> T	EventHandler.create(Class<T> listenerInterface, Object target, String action)	Creates an implementation of listenerInterface in which all of the methods in the listener interface apply the handler's action to the target.
static <T> T	EventHandler.create(Class<T> listenerInterface, Object target, String action, String eventPropertyName)	/** Creates an implementation of listenerInterface in which all of the methods pass the value of the event expression, eventPropertyName, to the final method in the statement, action, which is applied to the target.
static <T> T	EventHandler.create(Class<T> listenerInterface, Object target, String action, String eventPropertyName, String listenerMethodName)	Creates an implementation of listenerInterface in which the method named listenerMethodName passes the value of the event expression, eventPropertyName, to the final method in the statement, action, which is applied to the target.
static DefaultHandler	XMLDecoder.createHandler(Object owner, ExceptionListener el, ClassLoader cl)	Creates a new handler for SAX parser that can be used to parse embedded XML archives created by the XMLEncoder class.
PropertyEditor	PropertyDescriptor.createPropertyEditor(Object bean)	Constructs an instance of a property editor using the current property editor class.
boolean	IndexedPropertyDescriptor.equals(Object obj)	Compares this PropertyDescriptor against the specified object.
boolean	PropertyDescriptor.equals(Object obj)	Compares this PropertyDescriptor against the specified object.
void	PropertyChangeSupport.fireIndexedPropertyChange(String propertyName, int index, Object oldValue, Object newValue)	Reports a bound indexed property update to listeners that have been registered to track updates of all properties or a property with the specified name.
void	PropertyChangeSupport.firePropertyChange(String propertyName, Object oldValue, Object newValue)	Reports a bound property update to listeners that have been registered to track updates of all properties or a property with the specified name.
void	VetoableChangeSupport.fireVetoableChange(String propertyName, Object oldValue, Object newValue)	Reports a constrained property update to listeners that have been registered to track updates of all properties or a property with the specified name.
Object	Encoder.get(Object oldInstance)	Returns a tentative value for oldInstance in the environment created by this stream.
static Object	Beans.getInstanceOf(Object bean, Class<?> targetType)	From a given bean, obtain an object representing a specified type view of that source object.
protected void	DefaultPersistenceDelegate.initialize(Class<?> type, Object oldInstance, Object newInstance, Encoder out)	This default implementation of the initialize method assumes all state held in objects of this type is exposed via the matching pairs of "setter" and "getter" methods in the order they are returned by the Introspector.
protected void	PersistenceDelegate.initialize(Class<?> type, Object oldInstance, Object newInstance, Encoder out)	Produce a series of statements with side effects on newInstance so that the new instance becomes equivalent to oldInstance.
protected Expression	DefaultPersistenceDelegate.instantiate(Object oldInstance, Encoder out)	This default implementation of the instantiate method returns an expression containing the predefined method name "new" which denotes a call to a constructor with the arguments as specified in the DefaultPersistenceDelegate's constructor.
protected abstract Expression	PersistenceDelegate.instantiate(Object oldInstance, Encoder out)	Returns an expression whose value is oldInstance.
Object	EventHandler.invoke(Object proxy, Method method, Object[] arguments)	Extract the appropriate property value from the event and pass it to the action associated with this EventHandler.
static boolean	Beans.isInstanceOf(Object bean, Class<?> targetType)	Check if a bean can be viewed as a given target type.
protected boolean	DefaultPersistenceDelegate.mutatesTo(Object oldInstance, Object newInstance)	If the number of arguments in the specified constructor is non-zero and the class of oldInstance explicitly declares an "equals" method this method returns the value of oldInstance.equals(newInstance).
protected boolean	PersistenceDelegate.mutatesTo(Object oldInstance, Object newInstance)	Returns true if an equivalent copy of oldInstance may be created by applying a series of statements to newInstance.
Object	Encoder.remove(Object oldInstance)	Removes the entry for this instance, returning the old entry.
void	Customizer.setObject(Object bean)	Set the object to be customized.
void	XMLDecoder.setOwner(Object owner)	Sets the owner of this decoder to owner.
void	XMLEncoder.setOwner(Object owner)	Sets the owner of this encoder to owner.
void	PropertyChangeEvent.setPropagationId(Object propagationId)	Sets the propagationId object for the event.
void	PropertyEditorSupport.setSource(Object source)	Sets the source bean.
void	Expression.setValue(Object value)	Sets the value of this expression to value.
void	FeatureDescriptor.setValue(String attributeName, Object value)	Associate a named attribute with this feature.
void	PropertyEditor.setValue(Object value)	Set (or change) the object that is to be edited.
void	PropertyEditorSupport.setValue(Object value)	Set (or change) the object that is to be edited.
protected void	Encoder.writeObject(Object o)	Write the specified object to the output stream.
void	PersistenceDelegate.writeObject(Object oldInstance, Encoder out)	The writeObject is a single entry point to the persistence and is used by an Encoder in the traditional mode of delegation.
void	XMLEncoder.writeObject(Object o)	Write an XML representation of the specified object to the output.

Constructors in java.beans with parameters of type Object

Constructor	Description
EventHandler(Object target, String action, String eventPropertyName, String listenerMethodName)	Creates a new EventHandler object; you generally use one of the create methods instead of invoking this constructor directly.
Expression(Object value, Object target, String methodName, Object[] arguments)	Creates a new Expression object with the specified value for the specified target object to invoke the method specified by the name and by the array of arguments.
Expression(Object target, String methodName, Object[] arguments)	Creates a new Expression object for the specified target object to invoke the method specified by the name and by the array of arguments.
IndexedPropertyChangeEvent(Object source, String propertyName, Object oldValue, Object newValue, int index)	Constructs a new IndexedPropertyChangeEvent object.
PropertyChangeEvent(Object source, String propertyName, Object oldValue, Object newValue)	Constructs a new PropertyChangeEvent.
PropertyChangeSupport(Object sourceBean)	Constructs a PropertyChangeSupport object.
PropertyEditorSupport(Object source)	Constructs a PropertyEditorSupport object.
Statement(Object target, String methodName, Object[] arguments)	Creates a new Statement object for the specified target object to invoke the method specified by the name and by the array of arguments.
VetoableChangeSupport(Object sourceBean)	Constructs a VetoableChangeSupport object.
XMLDecoder(InputStream in, Object owner)	Creates a new input stream for reading archives created by the XMLEncoder class.
XMLDecoder(InputStream in, Object owner, ExceptionListener exceptionListener)	Creates a new input stream for reading archives created by the XMLEncoder class.
XMLDecoder(InputStream in, Object owner, ExceptionListener exceptionListener, ClassLoader cl)	Creates a new input stream for reading archives created by the XMLEncoder class.

Uses of Object in java.beans.beancontext

Subclasses of Object in java.beans.beancontext

Modifier and Type	Class	Description
class	BeanContextChildSupport	This is a general support class to provide support for implementing the BeanContextChild protocol.
class	BeanContextEvent	BeanContextEvent is the abstract root event class for all events emitted from, and pertaining to the semantics of, a BeanContext.
class	BeanContextMembershipEvent	A BeanContextMembershipEvent encapsulates the list of children added to, or removed from, the membership of a particular BeanContext.
class	BeanContextServiceAvailableEvent	This event type is used by the BeanContextServicesListener in order to identify the service being registered.
class	BeanContextServiceRevokedEvent	This event type is used by the BeanContextServiceRevokedListener in order to identify the service being revoked.
class	BeanContextServicesSupport	This helper class provides a utility implementation of the java.beans.beancontext.BeanContextServices interface.
protected class	BeanContextServicesSupport.BCSSChild
protected class	BeanContextServicesSupport.BCSSProxyServiceProvider
protected static class	BeanContextServicesSupport.BCSSServiceProvider	subclasses may subclass this nested class to add behaviors for each BeanContextServicesProvider.
class	BeanContextSupport	This helper class provides a utility implementation of the java.beans.beancontext.BeanContext interface.
protected class	BeanContextSupport.BCSChild
protected static class	BeanContextSupport.BCSIterator	protected final subclass that encapsulates an iterator but implements a noop remove() method.

Fields in java.beans.beancontext declared as Object

Modifier and Type	Field	Description
static Object	BeanContext.globalHierarchyLock	This global lock is used by both BeanContext and BeanContextServices implementors to serialize changes in a BeanContext hierarchy and any service requests etc.

Fields in java.beans.beancontext with type parameters of type Object

Modifier and Type	Field	Description
protected HashMap<Object,BeanContextSupport.BCSChild>	BeanContextSupport.children	all accesses to the protected HashMap children field shall be synchronized on that object.
protected HashMap<Object,BeanContextServicesSupport.BCSSServiceProvider>	BeanContextServicesSupport.services	all accesses to the protected transient HashMap services field should be synchronized on that object

Methods in java.beans.beancontext that return Object

Modifier and Type	Method	Description
protected Object[]	BeanContextSupport.copyChildren()	Gets a copy of the this BeanContext's children.
Object	BeanContextServiceProvider.getService(BeanContextServices bcs, Object requestor, Class<?> serviceClass, Object serviceSelector)	Invoked by BeanContextServices, this method requests an instance of a service from this BeanContextServiceProvider.
Object	BeanContextServices.getService(BeanContextChild child, Object requestor, Class<?> serviceClass, Object serviceSelector, BeanContextServiceRevokedListener bcsrl)	A BeanContextChild, or any arbitrary object associated with a BeanContextChild, may obtain a reference to a currently registered service from its nesting BeanContextServices via invocation of this method.
Object	BeanContextServicesSupport.BCSSProxyServiceProvider.getService(BeanContextServices bcs, Object requestor, Class<?> serviceClass, Object serviceSelector)
Object	BeanContextServicesSupport.getService(BeanContextChild child, Object requestor, Class<?> serviceClass, Object serviceSelector, BeanContextServiceRevokedListener bcsrl)	obtain a service which may be delegated
Object	BeanContext.instantiateChild(String beanName)	Instantiate the javaBean named as a child of this BeanContext.
Object	BeanContextSupport.instantiateChild(String beanName)	The instantiateChild method is a convenience hook in BeanContext to simplify the task of instantiating a Bean, nested, into a BeanContext.
Object	BeanContextSupport.BCSIterator.next()
Object[]	BeanContextMembershipEvent.toArray()	Gets the array of children affected by this event.
Object[]	BeanContextSupport.toArray()	Gets all JavaBean or BeanContext instances currently nested in this BeanContext.
Object[]	BeanContextSupport.toArray(Object[] arry)	Gets an array containing all children of this BeanContext that match the types contained in arry.

Methods in java.beans.beancontext that return types with arguments of type Object

Modifier and Type	Method	Description
Iterator<Object>	BeanContextServicesSupport.getCurrentServiceClasses()
Iterator<Object>	BeanContextSupport.iterator()	Gets all JavaBean or BeanContext instances currently nested in this BeanContext.

Methods in java.beans.beancontext with parameters of type Object

Modifier and Type	Method	Description
boolean	BeanContextSupport.add(Object targetChild)	Adds/nests a child within this BeanContext.
protected void	BeanContextSupport.childDeserializedHook(Object child, BeanContextSupport.BCSChild bcsc)	Called by readObject with the newly deserialized child and BCSChild.
protected void	BeanContextSupport.childJustAddedHook(Object child, BeanContextSupport.BCSChild bcsc)	subclasses may override this method to simply extend add() semantics after the child has been added and before the event notification has occurred.
protected void	BeanContextServicesSupport.childJustRemovedHook(Object child, BeanContextSupport.BCSChild bcsc)	called from superclass child removal operations after a child has been successfully removed. called with child synchronized.
protected void	BeanContextSupport.childJustRemovedHook(Object child, BeanContextSupport.BCSChild bcsc)	subclasses may override this method to simply extend remove() semantics after the child has been removed and before the event notification has occurred.
boolean	BeanContextMembershipEvent.contains(Object child)	Is the child specified affected by the event?
boolean	BeanContextSupport.contains(Object o)	Determines whether or not the specified object is currently a child of this BeanContext.
boolean	BeanContextSupport.containsKey(Object o)	Determines whether or not the specified object is currently a child of this BeanContext.
protected BeanContextSupport.BCSChild	BeanContextServicesSupport.createBCSChild(Object targetChild, Object peer)	Subclasses can override this method to insert their own subclass of Child without having to override add() or the other Collection methods that add children to the set.
protected BeanContextSupport.BCSChild	BeanContextSupport.createBCSChild(Object targetChild, Object peer)	Subclasses can override this method to insert their own subclass of Child without having to override add() or the other Collection methods that add children to the set.
void	BeanContextChildSupport.firePropertyChange(String name, Object oldValue, Object newValue)	Report a bound property update to any registered listeners.
void	BeanContextChildSupport.fireVetoableChange(String name, Object oldValue, Object newValue)	Report a vetoable property update to any registered listeners.
protected static BeanContextChild	BeanContextSupport.getChildBeanContextChild(Object child)	Gets the BeanContextChild (if any) of the specified child
protected static BeanContextMembershipListener	BeanContextSupport.getChildBeanContextMembershipListener(Object child)	Gets the BeanContextMembershipListener (if any) of the specified child
protected static BeanContextServicesListener	BeanContextServicesSupport.getChildBeanContextServicesListener(Object child)	Gets the BeanContextServicesListener (if any) of the specified child.
protected static PropertyChangeListener	BeanContextSupport.getChildPropertyChangeListener(Object child)	Gets the PropertyChangeListener (if any) of the specified child
protected static Serializable	BeanContextSupport.getChildSerializable(Object child)	Gets the Serializable (if any) associated with the specified Child
protected static VetoableChangeListener	BeanContextSupport.getChildVetoableChangeListener(Object child)	Gets the VetoableChangeListener (if any) of the specified child
protected static Visibility	BeanContextSupport.getChildVisibility(Object child)	Gets the Component (if any) associated with the specified child.
Object	BeanContextServiceProvider.getService(BeanContextServices bcs, Object requestor, Class<?> serviceClass, Object serviceSelector)	Invoked by BeanContextServices, this method requests an instance of a service from this BeanContextServiceProvider.
Object	BeanContextServices.getService(BeanContextChild child, Object requestor, Class<?> serviceClass, Object serviceSelector, BeanContextServiceRevokedListener bcsrl)	A BeanContextChild, or any arbitrary object associated with a BeanContextChild, may obtain a reference to a currently registered service from its nesting BeanContextServices via invocation of this method.
Object	BeanContextServicesSupport.BCSSProxyServiceProvider.getService(BeanContextServices bcs, Object requestor, Class<?> serviceClass, Object serviceSelector)
Object	BeanContextServicesSupport.getService(BeanContextChild child, Object requestor, Class<?> serviceClass, Object serviceSelector, BeanContextServiceRevokedListener bcsrl)	obtain a service which may be delegated
void	BeanContextServiceProvider.releaseService(BeanContextServices bcs, Object requestor, Object service)	Invoked by BeanContextServices, this method releases a nested BeanContextChild's (or any arbitrary object associated with a BeanContextChild) reference to the specified service.
void	BeanContextServices.releaseService(BeanContextChild child, Object requestor, Object service)	Releases a BeanContextChild's (or any arbitrary object associated with a BeanContextChild) reference to the specified service by calling releaseService() on the underlying BeanContextServiceProvider.
void	BeanContextServicesSupport.BCSSProxyServiceProvider.releaseService(BeanContextServices bcs, Object requestor, Object service)
void	BeanContextServicesSupport.releaseService(BeanContextChild child, Object requestor, Object service)	release a service
boolean	BeanContextSupport.remove(Object targetChild)	Removes a child from this BeanContext.
protected boolean	BeanContextSupport.remove(Object targetChild, boolean callChildSetBC)	internal remove used when removal caused by unexpected setBeanContext or by remove() invocation.
Object[]	BeanContextSupport.toArray(Object[] arry)	Gets an array containing all children of this BeanContext that match the types contained in arry.
protected boolean	BeanContextSupport.validatePendingAdd(Object targetChild)	Subclasses of this class may override, or envelope, this method to add validation behavior for the BeanContext to examine child objects immediately prior to their being added to the BeanContext.
protected boolean	BeanContextSupport.validatePendingRemove(Object targetChild)	Subclasses of this class may override, or envelope, this method to add validation behavior for the BeanContext to examine child objects immediately prior to their being removed from the BeanContext.

Constructors in java.beans.beancontext with parameters of type Object

Constructor	Description
BeanContextMembershipEvent(BeanContext bc, Object[] changes)	Contruct a BeanContextMembershipEvent

Uses of Object in java.io

Subclasses of Object in java.io

Modifier and Type	Class	Description
class	BufferedInputStream	A BufferedInputStream adds functionality to another input stream-namely, the ability to buffer the input and to support the mark and reset methods.
class	BufferedOutputStream	The class implements a buffered output stream.
class	BufferedReader	Reads text from a character-input stream, buffering characters so as to provide for the efficient reading of characters, arrays, and lines.
class	BufferedWriter	Writes text to a character-output stream, buffering characters so as to provide for the efficient writing of single characters, arrays, and strings.
class	ByteArrayInputStream	A ByteArrayInputStream contains an internal buffer that contains bytes that may be read from the stream.
class	ByteArrayOutputStream	This class implements an output stream in which the data is written into a byte array.
class	CharArrayReader	This class implements a character buffer that can be used as a character-input stream.
class	CharArrayWriter	This class implements a character buffer that can be used as an Writer.
class	CharConversionException	Base class for character conversion exceptions.
class	Console	Methods to access the character-based console device, if any, associated with the current Java virtual machine.
class	DataInputStream	A data input stream lets an application read primitive Java data types from an underlying input stream in a machine-independent way.
class	DataOutputStream	A data output stream lets an application write primitive Java data types to an output stream in a portable way.
class	EOFException	Signals that an end of file or end of stream has been reached unexpectedly during input.
class	File	An abstract representation of file and directory pathnames.
class	FileDescriptor	Instances of the file descriptor class serve as an opaque handle to the underlying machine-specific structure representing an open file, an open socket, or another source or sink of bytes.
class	FileInputStream	A FileInputStream obtains input bytes from a file in a file system.
class	FileNotFoundException	Signals that an attempt to open the file denoted by a specified pathname has failed.
class	FileOutputStream	A file output stream is an output stream for writing data to a File or to a FileDescriptor.
class	FilePermission	This class represents access to a file or directory.
class	FileReader	Convenience class for reading character files.
class	FileWriter	Convenience class for writing character files.
class	FilterInputStream	A FilterInputStream contains some other input stream, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
class	FilterOutputStream	This class is the superclass of all classes that filter output streams.
class	FilterReader	Abstract class for reading filtered character streams.
class	FilterWriter	Abstract class for writing filtered character streams.
class	InputStream	This abstract class is the superclass of all classes representing an input stream of bytes.
class	InputStreamReader	An InputStreamReader is a bridge from byte streams to character streams: It reads bytes and decodes them into characters using a specified charset.
class	InterruptedIOException	Signals that an I/O operation has been interrupted.
class	InvalidClassException	Thrown when the Serialization runtime detects one of the following problems with a Class.
class	InvalidObjectException	Indicates that one or more deserialized objects failed validation tests.
class	IOError	Thrown when a serious I/O error has occurred.
class	IOException	Signals that an I/O exception of some sort has occurred.
class	LineNumberInputStream	Deprecated. This class incorrectly assumes that bytes adequately represent characters. As of JDK 1.1, the preferred way to operate on character streams is via the new character-stream classes, which include a class for counting line numbers.
class	LineNumberReader	A buffered character-input stream that keeps track of line numbers.
class	NotActiveException	Thrown when serialization or deserialization is not active.
class	NotSerializableException	Thrown when an instance is required to have a Serializable interface.
static class	ObjectInputFilter.Config	A utility class to set and get the process-wide filter or create a filter from a pattern string.
class	ObjectInputStream	An ObjectInputStream deserializes primitive data and objects previously written using an ObjectOutputStream.
static class	ObjectInputStream.GetField	Provide access to the persistent fields read from the input stream.
class	ObjectOutputStream	An ObjectOutputStream writes primitive data types and graphs of Java objects to an OutputStream.
static class	ObjectOutputStream.PutField	Provide programmatic access to the persistent fields to be written to ObjectOutput.
class	ObjectStreamClass	Serialization's descriptor for classes.
class	ObjectStreamException	Superclass of all exceptions specific to Object Stream classes.
class	ObjectStreamField	A description of a Serializable field from a Serializable class.
class	OptionalDataException	Exception indicating the failure of an object read operation due to unread primitive data, or the end of data belonging to a serialized object in the stream.
class	OutputStream	This abstract class is the superclass of all classes representing an output stream of bytes.
class	OutputStreamWriter	An OutputStreamWriter is a bridge from character streams to byte streams: Characters written to it are encoded into bytes using a specified charset.
class	PipedInputStream	A piped input stream should be connected to a piped output stream; the piped input stream then provides whatever data bytes are written to the piped output stream.
class	PipedOutputStream	A piped output stream can be connected to a piped input stream to create a communications pipe.
class	PipedReader	Piped character-input streams.
class	PipedWriter	Piped character-output streams.
class	PrintStream	A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
class	PrintWriter	Prints formatted representations of objects to a text-output stream.
class	PushbackInputStream	A PushbackInputStream adds functionality to another input stream, namely the ability to "push back" or "unread" bytes, by storing pushed-back bytes in an internal buffer.
class	PushbackReader	A character-stream reader that allows characters to be pushed back into the stream.
class	RandomAccessFile	Instances of this class support both reading and writing to a random access file.
class	Reader	Abstract class for reading character streams.
class	SequenceInputStream	A SequenceInputStream represents the logical concatenation of other input streams.
class	SerializablePermission	This class is for Serializable permissions.
class	StreamCorruptedException	Thrown when control information that was read from an object stream violates internal consistency checks.
class	StreamTokenizer	The StreamTokenizer class takes an input stream and parses it into "tokens", allowing the tokens to be read one at a time.
class	StringBufferInputStream	Deprecated. This class does not properly convert characters into bytes. As of JDK 1.1, the preferred way to create a stream from a string is via the StringReader class.
class	StringReader	A character stream whose source is a string.
class	StringWriter	A character stream that collects its output in a string buffer, which can then be used to construct a string.
class	SyncFailedException	Signals that a sync operation has failed.
class	UncheckedIOException	Wraps an IOException with an unchecked exception.
class	UnsupportedEncodingException	The Character Encoding is not supported.
class	UTFDataFormatException	Signals that a malformed string in modified UTF-8 format has been read in a data input stream or by any class that implements the data input interface.
class	WriteAbortedException	Signals that one of the ObjectStreamExceptions was thrown during a write operation.
class	Writer	Abstract class for writing to character streams.

Fields in java.io declared as Object

Modifier and Type	Field	Description
protected Object	Reader.lock	The object used to synchronize operations on this stream.
protected Object	Writer.lock	The object used to synchronize operations on this stream.

Methods in java.io that return Object

Modifier and Type	Method	Description
abstract Object	ObjectInputStream.GetField.get(String name, Object val)	Get the value of the named Object field from the persistent field.
Object	ObjectInput.readObject()	Read and return an object.
Object	ObjectInputStream.readObject()	Read an object from the ObjectInputStream.
protected Object	ObjectInputStream.readObjectOverride()	This method is called by trusted subclasses of ObjectOutputStream that constructed ObjectOutputStream using the protected no-arg constructor.
Object	ObjectInputStream.readUnshared()	Reads an "unshared" object from the ObjectInputStream.
protected Object	ObjectOutputStream.replaceObject(Object obj)	This method will allow trusted subclasses of ObjectOutputStream to substitute one object for another during serialization.
protected Object	ObjectInputStream.resolveObject(Object obj)	This method will allow trusted subclasses of ObjectInputStream to substitute one object for another during deserialization.

Methods in java.io with parameters of type Object

Modifier and Type	Method	Description
int	ObjectStreamField.compareTo(Object obj)	Compare this field with another ObjectStreamField.
boolean	File.equals(Object obj)	Tests this abstract pathname for equality with the given object.
boolean	FilePermission.equals(Object obj)	Checks two FilePermission objects for equality.
Console	Console.format(String fmt, Object... args)	Writes a formatted string to this console's output stream using the specified format string and arguments.
PrintStream	PrintStream.format(String format, Object... args)	Writes a formatted string to this output stream using the specified format string and arguments.
PrintStream	PrintStream.format(Locale l, String format, Object... args)	Writes a formatted string to this output stream using the specified format string and arguments.
PrintWriter	PrintWriter.format(String format, Object... args)	Writes a formatted string to this writer using the specified format string and arguments.
PrintWriter	PrintWriter.format(Locale l, String format, Object... args)	Writes a formatted string to this writer using the specified format string and arguments.
abstract Object	ObjectInputStream.GetField.get(String name, Object val)	Get the value of the named Object field from the persistent field.
void	PrintStream.print(Object obj)	Prints an object.
void	PrintWriter.print(Object obj)	Prints an object.
Console	Console.printf(String format, Object... args)	A convenience method to write a formatted string to this console's output stream using the specified format string and arguments.
PrintStream	PrintStream.printf(String format, Object... args)	A convenience method to write a formatted string to this output stream using the specified format string and arguments.
PrintStream	PrintStream.printf(Locale l, String format, Object... args)	A convenience method to write a formatted string to this output stream using the specified format string and arguments.
PrintWriter	PrintWriter.printf(String format, Object... args)	A convenience method to write a formatted string to this writer using the specified format string and arguments.
PrintWriter	PrintWriter.printf(Locale l, String format, Object... args)	A convenience method to write a formatted string to this writer using the specified format string and arguments.
void	PrintStream.println(Object x)	Prints an Object and then terminate the line.
void	PrintWriter.println(Object x)	Prints an Object and then terminates the line.
abstract void	ObjectOutputStream.PutField.put(String name, Object val)	Put the value of the named Object field into the persistent field.
String	Console.readLine(String fmt, Object... args)	Provides a formatted prompt, then reads a single line of text from the console.
char[]	Console.readPassword(String fmt, Object... args)	Provides a formatted prompt, then reads a password or passphrase from the console with echoing disabled.
protected Object	ObjectOutputStream.replaceObject(Object obj)	This method will allow trusted subclasses of ObjectOutputStream to substitute one object for another during serialization.
protected Object	ObjectInputStream.resolveObject(Object obj)	This method will allow trusted subclasses of ObjectInputStream to substitute one object for another during deserialization.
void	ObjectOutput.writeObject(Object obj)	Write an object to the underlying storage or stream.
void	ObjectOutputStream.writeObject(Object obj)	Write the specified object to the ObjectOutputStream.
protected void	ObjectOutputStream.writeObjectOverride(Object obj)	Method used by subclasses to override the default writeObject method.
void	ObjectOutputStream.writeUnshared(Object obj)	Writes an "unshared" object to the ObjectOutputStream.

Constructors in java.io with parameters of type Object

Constructor	Description
Reader(Object lock)	Creates a new character-stream reader whose critical sections will synchronize on the given object.
Writer(Object lock)	Creates a new character-stream writer whose critical sections will synchronize on the given object.

Uses of Object in java.lang

Subclasses of Object in java.lang

Modifier and Type	Class	Description
class	AbstractMethodError	Thrown when an application tries to call an abstract method.
class	ArithmeticException	Thrown when an exceptional arithmetic condition has occurred.
class	ArrayIndexOutOfBoundsException	Thrown to indicate that an array has been accessed with an illegal index.
class	ArrayStoreException	Thrown to indicate that an attempt has been made to store the wrong type of object into an array of objects.
class	AssertionError	Thrown to indicate that an assertion has failed.
class	Boolean	The Boolean class wraps a value of the primitive type boolean in an object.
class	BootstrapMethodError	Thrown to indicate that an invokedynamic instruction has failed to find its bootstrap method, or the bootstrap method has failed to provide a call site with a target of the correct method type.
class	Byte	The Byte class wraps a value of primitive type byte in an object.
class	Character	The Character class wraps a value of the primitive type char in an object.
static class	Character.Subset	Instances of this class represent particular subsets of the Unicode character set.
static class	Character.UnicodeBlock	A family of character subsets representing the character blocks in the Unicode specification.
class	Class<T>	Instances of the class Class represent classes and interfaces in a running Java application.
class	ClassCastException	Thrown to indicate that the code has attempted to cast an object to a subclass of which it is not an instance.
class	ClassCircularityError	Thrown when the Java Virtual Machine detects a circularity in the superclass hierarchy of a class being loaded.
class	ClassFormatError	Thrown when the Java Virtual Machine attempts to read a class file and determines that the file is malformed or otherwise cannot be interpreted as a class file.
class	ClassLoader	A class loader is an object that is responsible for loading classes.
class	ClassNotFoundException	Thrown when an application tries to load in a class through its string name using: The forName method in class Class.
class	ClassValue<T>	Lazily associate a computed value with (potentially) every type.
class	CloneNotSupportedException	Thrown to indicate that the clone method in class Object has been called to clone an object, but that the object's class does not implement the Cloneable interface.
class	Compiler	Deprecated, for removal: This API element is subject to removal in a future version. JIT compilers and their technologies vary too widely to be controlled effectively by a standardized interface. As such, many JIT compiler implementations ignore this interface, and are instead controllable by implementation-specific mechanisms such as command-line options. This class is subject to removal in a future version of Java SE.
class	Double	The Double class wraps a value of the primitive type double in an object.
class	Enum<E extends Enum<E>>	This is the common base class of all Java language enumeration types.
class	EnumConstantNotPresentException	Thrown when an application tries to access an enum constant by name and the enum type contains no constant with the specified name.
class	Error	An Error is a subclass of Throwable that indicates serious problems that a reasonable application should not try to catch.
class	Exception	The class Exception and its subclasses are a form of Throwable that indicates conditions that a reasonable application might want to catch.
class	ExceptionInInitializerError	Signals that an unexpected exception has occurred in a static initializer.
class	Float	The Float class wraps a value of primitive type float in an object.
class	IllegalAccessError	Thrown if an application attempts to access or modify a field, or to call a method that it does not have access to.
class	IllegalAccessException	An IllegalAccessException is thrown when an application tries to reflectively create an instance (other than an array), set or get a field, or invoke a method, but the currently executing method does not have access to the definition of the specified class, field, method or constructor.
class	IllegalArgumentException	Thrown to indicate that a method has been passed an illegal or inappropriate argument.
class	IllegalCallerException	Thrown to indicate that a method has been called by an inappropriate caller.
class	IllegalMonitorStateException	Thrown to indicate that a thread has attempted to wait on an object's monitor or to notify other threads waiting on an object's monitor without owning the specified monitor.
class	IllegalStateException	Signals that a method has been invoked at an illegal or inappropriate time.
class	IllegalThreadStateException	Thrown to indicate that a thread is not in an appropriate state for the requested operation.
class	IncompatibleClassChangeError	Thrown when an incompatible class change has occurred to some class definition.
class	IndexOutOfBoundsException	Thrown to indicate that an index of some sort (such as to an array, to a string, or to a vector) is out of range.
class	InheritableThreadLocal<T>	This class extends ThreadLocal to provide inheritance of values from parent thread to child thread: when a child thread is created, the child receives initial values for all inheritable thread-local variables for which the parent has values.
class	InstantiationError	Thrown when an application tries to use the Java new construct to instantiate an abstract class or an interface.
class	InstantiationException	Thrown when an application tries to create an instance of a class using the newInstance method in class Class, but the specified class object cannot be instantiated.
class	Integer	The Integer class wraps a value of the primitive type int in an object.
class	InternalError	Thrown to indicate some unexpected internal error has occurred in the Java Virtual Machine.
class	InterruptedException	Thrown when a thread is waiting, sleeping, or otherwise occupied, and the thread is interrupted, either before or during the activity.
class	LinkageError	Subclasses of LinkageError indicate that a class has some dependency on another class; however, the latter class has incompatibly changed after the compilation of the former class.
class	Long	The Long class wraps a value of the primitive type long in an object.
class	Math	The class Math contains methods for performing basic numeric operations such as the elementary exponential, logarithm, square root, and trigonometric functions.
class	NegativeArraySizeException	Thrown if an application tries to create an array with negative size.
class	NoClassDefFoundError	Thrown if the Java Virtual Machine or a ClassLoader instance tries to load in the definition of a class (as part of a normal method call or as part of creating a new instance using the new expression) and no definition of the class could be found.
class	NoSuchFieldError	Thrown if an application tries to access or modify a specified field of an object, and that object no longer has that field.
class	NoSuchFieldException	Signals that the class doesn't have a field of a specified name.
class	NoSuchMethodError	Thrown if an application tries to call a specified method of a class (either static or instance), and that class no longer has a definition of that method.
class	NoSuchMethodException	Thrown when a particular method cannot be found.
class	NullPointerException	Thrown when an application attempts to use null in a case where an object is required.
class	Number	The abstract class Number is the superclass of platform classes representing numeric values that are convertible to the primitive types byte, double, float, int, long, and short.
class	NumberFormatException	Thrown to indicate that the application has attempted to convert a string to one of the numeric types, but that the string does not have the appropriate format.
class	OutOfMemoryError	Thrown when the Java Virtual Machine cannot allocate an object because it is out of memory, and no more memory could be made available by the garbage collector.
class	Package	Represents metadata about a run-time package associated with a class loader.
class	Process	Process provides control of native processes started by ProcessBuilder.start and Runtime.exec.
class	ProcessBuilder	This class is used to create operating system processes.
static class	ProcessBuilder.Redirect	Represents a source of subprocess input or a destination of subprocess output.
class	ReflectiveOperationException	Common superclass of exceptions thrown by reflective operations in core reflection.
class	Runtime	Every Java application has a single instance of class Runtime that allows the application to interface with the environment in which the application is running.
static class	Runtime.Version	A representation of a version string for an implementation of the Java SE Platform.
class	RuntimeException	RuntimeException is the superclass of those exceptions that can be thrown during the normal operation of the Java Virtual Machine.
class	RuntimePermission	This class is for runtime permissions.
class	SecurityException	Thrown by the security manager to indicate a security violation.
class	SecurityManager	The security manager is a class that allows applications to implement a security policy.
class	Short	The Short class wraps a value of primitive type short in an object.
class	StackFramePermission	Permission to access StackWalker.StackFrame.
class	StackOverflowError	Thrown when a stack overflow occurs because an application recurses too deeply.
class	StackTraceElement	An element in a stack trace, as returned by Throwable.getStackTrace().
class	StackWalker	A stack walker.
class	StrictMath	The class StrictMath contains methods for performing basic numeric operations such as the elementary exponential, logarithm, square root, and trigonometric functions.
class	String	The String class represents character strings.
class	StringBuffer	A thread-safe, mutable sequence of characters.
class	StringBuilder	A mutable sequence of characters.
class	StringIndexOutOfBoundsException	Thrown by String methods to indicate that an index is either negative or greater than the size of the string.
class	System	The System class contains several useful class fields and methods.
static class	System.LoggerFinder	The LoggerFinder service is responsible for creating, managing, and configuring loggers to the underlying framework it uses.
class	Thread	A thread is a thread of execution in a program.
class	ThreadDeath	An instance of ThreadDeath is thrown in the victim thread when the (deprecated) Thread.stop() method is invoked.
class	ThreadGroup	A thread group represents a set of threads.
class	ThreadLocal<T>	This class provides thread-local variables.
class	Throwable	The Throwable class is the superclass of all errors and exceptions in the Java language.
class	TypeNotPresentException	Thrown when an application tries to access a type using a string representing the type's name, but no definition for the type with the specified name can be found.
class	UnknownError	Thrown when an unknown but serious exception has occurred in the Java Virtual Machine.
class	UnsatisfiedLinkError	Thrown if the Java Virtual Machine cannot find an appropriate native-language definition of a method declared native.
class	UnsupportedClassVersionError	Thrown when the Java Virtual Machine attempts to read a class file and determines that the major and minor version numbers in the file are not supported.
class	UnsupportedOperationException	Thrown to indicate that the requested operation is not supported.
class	VerifyError	Thrown when the "verifier" detects that a class file, though well formed, contains some sort of internal inconsistency or security problem.
class	VirtualMachineError	Thrown to indicate that the Java Virtual Machine is broken or has run out of resources necessary for it to continue operating.
class	Void	The Void class is an uninstantiable placeholder class to hold a reference to the Class object representing the Java keyword void.

Methods in java.lang that return Object

Modifier and Type	Method	Description
protected Object	Enum.clone()	Throws CloneNotSupportedException.
protected Object	Object.clone()	Creates and returns a copy of this object.
protected Object	Thread.clone()	Throws CloneNotSupportedException as a Thread can not be meaningfully cloned.
static Object	Compiler.command(Object any)	Deprecated, for removal: This API element is subject to removal in a future version. Examines the argument type and its fields and perform some documented operation.
protected Object	ClassLoader.getClassLoadingLock(String className)	Returns the lock object for class loading operations.
T[]	Class.getEnumConstants()	Returns the elements of this enum class or null if this Class object does not represent an enum type.
Object	SecurityManager.getSecurityContext()	Creates an object that encapsulates the current execution environment.
Object[]	Class.getSigners()	Gets the signers of this class.

Methods in java.lang with parameters of type Object

Modifier and Type	Method	Description
StringBuffer	StringBuffer.append(Object obj)
StringBuilder	StringBuilder.append(Object obj)
static void	System.arraycopy(Object src, int srcPos, Object dest, int destPos, int length)	Copies an array from the specified source array, beginning at the specified position, to the specified position of the destination array.
T	Class.cast(Object obj)	Casts an object to the class or interface represented by this Class object.
void	SecurityManager.checkConnect(String host, int port, Object context)	Throws a SecurityException if the specified security context is not allowed to open a socket connection to the specified host and port number.
void	SecurityManager.checkPermission(Permission perm, Object context)	Throws a SecurityException if the specified security context is denied access to the resource specified by the given permission.
void	SecurityManager.checkRead(String file, Object context)	Throws a SecurityException if the specified security context is not allowed to read the file specified by the string argument.
boolean	SecurityManager.checkTopLevelWindow(Object window)	Deprecated, for removal: This API element is subject to removal in a future version. This method was originally used to check if the calling thread was trusted to bring up a top-level window. The method has been obsoleted and code should instead use SecurityManager.checkPermission(java.security.Permission) to check AWTPermission("showWindowWithoutWarningBanner"). This method is subject to removal in a future version of Java SE.
static Object	Compiler.command(Object any)	Deprecated, for removal: This API element is subject to removal in a future version. Examines the argument type and its fields and perform some documented operation.
boolean	Boolean.equals(Object obj)	Returns true if and only if the argument is not null and is a Boolean object that represents the same boolean value as this object.
boolean	Byte.equals(Object obj)	Compares this object to the specified object.
boolean	Character.equals(Object obj)	Compares this object against the specified object.
boolean	Character.Subset.equals(Object obj)	Compares two Subset objects for equality.
boolean	Double.equals(Object obj)	Compares this object against the specified object.
boolean	Enum.equals(Object other)	Returns true if the specified object is equal to this enum constant.
boolean	Float.equals(Object obj)	Compares this object against the specified object.
boolean	Integer.equals(Object obj)	Compares this object to the specified object.
boolean	Long.equals(Object obj)	Compares this object to the specified object.
boolean	Object.equals(Object obj)	Indicates whether some other object is "equal to" this one.
boolean	ProcessBuilder.Redirect.equals(Object obj)	Compares the specified object with this Redirect for equality.
boolean	ProcessHandle.equals(Object other)	Returns true if other object is non-null, is of the same implementation, and represents the same system process; otherwise it returns false.
boolean	Runtime.Version.equals(Object ob)	Determines whether this Version is equal to another object.
boolean	Short.equals(Object obj)	Compares this object to the specified object.
boolean	StackTraceElement.equals(Object obj)	Returns true if the specified object is another StackTraceElement instance representing the same execution point as this instance.
boolean	String.equals(Object anObject)	Compares this string to the specified object.
boolean	Runtime.Version.equalsIgnoreOptional(Object ob)	Determines whether this Version is equal to another disregarding optional build information.
static String	String.format(String format, Object... args)	Returns a formatted string using the specified format string and arguments.
static String	String.format(Locale l, String format, Object... args)	Returns a formatted string using the specified locale, format string, and arguments.
static boolean	Thread.holdsLock(Object obj)	Returns true if and only if the current thread holds the monitor lock on the specified object.
static int	System.identityHashCode(Object x)	Returns the same hash code for the given object as would be returned by the default method hashCode(), whether or not the given object's class overrides hashCode().
StringBuffer	StringBuffer.insert(int offset, Object obj)
StringBuilder	StringBuilder.insert(int offset, Object obj)
boolean	Class.isInstance(Object obj)	Determines if the specified Object is assignment-compatible with the object represented by this Class.
default void	System.Logger.log(System.Logger.Level level, Object obj)	Logs a message produced from the given object.
default void	System.Logger.log(System.Logger.Level level, String format, Object... params)	Logs a message with an optional list of parameters.
void	System.Logger.log(System.Logger.Level level, ResourceBundle bundle, String format, Object... params)	Logs a message with resource bundle and an optional list of parameters.
protected void	ClassLoader.setSigners(Class<?> c, Object[] signers)	Sets the signers of a class.
static String	String.valueOf(Object obj)	Returns the string representation of the Object argument.

Constructors in java.lang with parameters of type Object

Constructor	Description
AssertionError(Object detailMessage)	Constructs an AssertionError with its detail message derived from the specified object, which is converted to a string as defined in section 15.18.1.1 of The Java™ Language Specification.

Uses of Object in java.lang.annotation

Subclasses of Object in java.lang.annotation

Modifier and Type	Class	Description
class	AnnotationFormatError	Thrown when the annotation parser attempts to read an annotation from a class file and determines that the annotation is malformed.
class	AnnotationTypeMismatchException	Thrown to indicate that a program has attempted to access an element of an annotation whose type has changed after the annotation was compiled (or serialized).
class	IncompleteAnnotationException	Thrown to indicate that a program has attempted to access an element of an annotation type that was added to the annotation type definition after the annotation was compiled (or serialized).

Methods in java.lang.annotation with parameters of type Object

Modifier and Type	Method	Description
boolean	Annotation.equals(Object obj)	Returns true if the specified object represents an annotation that is logically equivalent to this one.

Uses of Object in java.lang.instrument

Subclasses of Object in java.lang.instrument

Modifier and Type	Class	Description
class	ClassDefinition	This class serves as a parameter block to the Instrumentation.redefineClasses method.
class	IllegalClassFormatException	Thrown by an implementation of ClassFileTransformer.transform when its input parameters are invalid.
class	UnmodifiableClassException	Thrown by an implementation of Instrumentation.redefineClasses when one of the specified classes cannot be modified.

Methods in java.lang.instrument with parameters of type Object

Modifier and Type	Method	Description
long	Instrumentation.getObjectSize(Object objectToSize)	Returns an implementation-specific approximation of the amount of storage consumed by the specified object.

Uses of Object in java.lang.invoke

Subclasses of Object in java.lang.invoke

Modifier and Type	Class	Description
class	CallSite	A CallSite is a holder for a variable MethodHandle, which is called its target.
class	ConstantCallSite	A ConstantCallSite is a CallSite whose target is permanent, and can never be changed.
class	LambdaConversionException	LambdaConversionException
class	LambdaMetafactory	Methods to facilitate the creation of simple "function objects" that implement one or more interfaces by delegation to a provided MethodHandle, possibly after type adaptation and partial evaluation of arguments.
class	MethodHandle	A method handle is a typed, directly executable reference to an underlying method, constructor, field, or similar low-level operation, with optional transformations of arguments or return values.
class	MethodHandleProxies	This class consists exclusively of static methods that help adapt method handles to other JVM types, such as interfaces.
class	MethodHandles	This class consists exclusively of static methods that operate on or return method handles.
static class	MethodHandles.Lookup	A lookup object is a factory for creating method handles, when the creation requires access checking.
class	MethodType	A method type represents the arguments and return type accepted and returned by a method handle, or the arguments and return type passed and expected by a method handle caller.
class	MutableCallSite	A MutableCallSite is a CallSite whose target variable behaves like an ordinary field.
class	SerializedLambda	Serialized form of a lambda expression.
class	StringConcatException	StringConcatException is thrown by StringConcatFactory when linkage invariants are violated.
class	StringConcatFactory	Methods to facilitate the creation of String concatenation methods, that can be used to efficiently concatenate a known number of arguments of known types, possibly after type adaptation and partial evaluation of arguments.
class	SwitchPoint	A SwitchPoint is an object which can publish state transitions to other threads.
class	VarHandle	A VarHandle is a dynamically typed reference to a variable, or to a parametrically-defined family of variables, including static fields, non-static fields, array elements, or components of an off-heap data structure.
class	VolatileCallSite	A VolatileCallSite is a CallSite whose target acts like a volatile variable.
class	WrongMethodTypeException	Thrown to indicate that code has attempted to call a method handle via the wrong method type.

Methods in java.lang.invoke that return Object

Modifier and Type	Method	Description
Object	VarHandle.compareAndExchange(Object... args)	Atomically sets the value of a variable to the newValue with the memory semantics of VarHandle.setVolatile(java.lang.Object...) if the variable's current value, referred to as the witness value, == the expectedValue, as accessed with the memory semantics of VarHandle.getVolatile(java.lang.Object...).
Object	VarHandle.compareAndExchangeAcquire(Object... args)	Atomically sets the value of a variable to the newValue with the memory semantics of VarHandle.set(java.lang.Object...) if the variable's current value, referred to as the witness value, == the expectedValue, as accessed with the memory semantics of VarHandle.getAcquire(java.lang.Object...).
Object	VarHandle.compareAndExchangeRelease(Object... args)	Atomically sets the value of a variable to the newValue with the memory semantics of VarHandle.setRelease(java.lang.Object...) if the variable's current value, referred to as the witness value, == the expectedValue, as accessed with the memory semantics of VarHandle.get(java.lang.Object...).
Object	VarHandle.get(Object... args)	Returns the value of a variable, with memory semantics of reading as if the variable was declared non-volatile.
Object	VarHandle.getAcquire(Object... args)	Returns the value of a variable, and ensures that subsequent loads and stores are not reordered before this access.
Object	VarHandle.getAndAdd(Object... args)	Atomically adds the value to the current value of a variable with the memory semantics of VarHandle.setVolatile(java.lang.Object...), and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getVolatile(java.lang.Object...).
Object	VarHandle.getAndAddAcquire(Object... args)	Atomically adds the value to the current value of a variable with the memory semantics of VarHandle.set(java.lang.Object...), and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getAcquire(java.lang.Object...).
Object	VarHandle.getAndAddRelease(Object... args)	Atomically adds the value to the current value of a variable with the memory semantics of VarHandle.setRelease(java.lang.Object...), and returns the variable's previous value, as accessed with the memory semantics of VarHandle.get(java.lang.Object...).
Object	VarHandle.getAndBitwiseAnd(Object... args)	Atomically sets the value of a variable to the result of bitwise AND between the variable's current value and the mask with the memory semantics of VarHandle.setVolatile(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getVolatile(java.lang.Object...).
Object	VarHandle.getAndBitwiseAndAcquire(Object... args)	Atomically sets the value of a variable to the result of bitwise AND between the variable's current value and the mask with the memory semantics of VarHandle.set(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getAcquire(java.lang.Object...).
Object	VarHandle.getAndBitwiseAndRelease(Object... args)	Atomically sets the value of a variable to the result of bitwise AND between the variable's current value and the mask with the memory semantics of VarHandle.setRelease(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.get(java.lang.Object...).
Object	VarHandle.getAndBitwiseOr(Object... args)	Atomically sets the value of a variable to the result of bitwise OR between the variable's current value and the mask with the memory semantics of VarHandle.setVolatile(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getVolatile(java.lang.Object...).
Object	VarHandle.getAndBitwiseOrAcquire(Object... args)	Atomically sets the value of a variable to the result of bitwise OR between the variable's current value and the mask with the memory semantics of VarHandle.set(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getAcquire(java.lang.Object...).
Object	VarHandle.getAndBitwiseOrRelease(Object... args)	Atomically sets the value of a variable to the result of bitwise OR between the variable's current value and the mask with the memory semantics of VarHandle.setRelease(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.get(java.lang.Object...).
Object	VarHandle.getAndBitwiseXor(Object... args)	Atomically sets the value of a variable to the result of bitwise XOR between the variable's current value and the mask with the memory semantics of VarHandle.setVolatile(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getVolatile(java.lang.Object...).
Object	VarHandle.getAndBitwiseXorAcquire(Object... args)	Atomically sets the value of a variable to the result of bitwise XOR between the variable's current value and the mask with the memory semantics of VarHandle.set(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getAcquire(java.lang.Object...).
Object	VarHandle.getAndBitwiseXorRelease(Object... args)	Atomically sets the value of a variable to the result of bitwise XOR between the variable's current value and the mask with the memory semantics of VarHandle.setRelease(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.get(java.lang.Object...).
Object	VarHandle.getAndSet(Object... args)	Atomically sets the value of a variable to the newValue with the memory semantics of VarHandle.setVolatile(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getVolatile(java.lang.Object...).
Object	VarHandle.getAndSetAcquire(Object... args)	Atomically sets the value of a variable to the newValue with the memory semantics of VarHandle.set(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getAcquire(java.lang.Object...).
Object	VarHandle.getAndSetRelease(Object... args)	Atomically sets the value of a variable to the newValue with the memory semantics of VarHandle.setRelease(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.get(java.lang.Object...).
Object	SerializedLambda.getCapturedArg(int i)	Get a dynamic argument to the lambda capture site.
Object	VarHandle.getOpaque(Object... args)	Returns the value of a variable, accessed in program order, but with no assurance of memory ordering effects with respect to other threads.
Object	VarHandle.getVolatile(Object... args)	Returns the value of a variable, with memory semantics of reading as if the variable was declared volatile.
Object	MethodHandle.invoke(Object... args)	Invokes the method handle, allowing any caller type descriptor, and optionally performing conversions on arguments and return values.
Object	MethodHandle.invokeExact(Object... args)	Invokes the method handle, allowing any caller type descriptor, but requiring an exact type match.
Object	MethodHandle.invokeWithArguments(Object... arguments)	Performs a variable arity invocation, passing the arguments in the given list to the method handle, as if via an inexact invoke from a call site which mentions only the type Object, and whose arity is the length of the argument list.
Object	MethodHandle.invokeWithArguments(List<?> arguments)	Performs a variable arity invocation, passing the arguments in the given array to the method handle, as if via an inexact invoke from a call site which mentions only the type Object, and whose arity is the length of the argument array.

Methods in java.lang.invoke with parameters of type Object

Modifier and Type	Method	Description
static CallSite	LambdaMetafactory.altMetafactory(MethodHandles.Lookup caller, String invokedName, MethodType invokedType, Object... args)	Facilitates the creation of simple "function objects" that implement one or more interfaces by delegation to a provided MethodHandle, after appropriate type adaptation and partial evaluation of arguments.
MethodHandle	MethodHandles.Lookup.bind(Object receiver, String name, MethodType type)	Produces an early-bound method handle for a non-static method.
MethodHandle	MethodHandle.bindTo(Object x)	Binds a value x to the first argument of a method handle, without invoking it.
Object	VarHandle.compareAndExchange(Object... args)	Atomically sets the value of a variable to the newValue with the memory semantics of VarHandle.setVolatile(java.lang.Object...) if the variable's current value, referred to as the witness value, == the expectedValue, as accessed with the memory semantics of VarHandle.getVolatile(java.lang.Object...).
Object	VarHandle.compareAndExchangeAcquire(Object... args)	Atomically sets the value of a variable to the newValue with the memory semantics of VarHandle.set(java.lang.Object...) if the variable's current value, referred to as the witness value, == the expectedValue, as accessed with the memory semantics of VarHandle.getAcquire(java.lang.Object...).
Object	VarHandle.compareAndExchangeRelease(Object... args)	Atomically sets the value of a variable to the newValue with the memory semantics of VarHandle.setRelease(java.lang.Object...) if the variable's current value, referred to as the witness value, == the expectedValue, as accessed with the memory semantics of VarHandle.get(java.lang.Object...).
boolean	VarHandle.compareAndSet(Object... args)	Atomically sets the value of a variable to the newValue with the memory semantics of VarHandle.setVolatile(java.lang.Object...) if the variable's current value, referred to as the witness value, == the expectedValue, as accessed with the memory semantics of VarHandle.getVolatile(java.lang.Object...).
static MethodHandle	MethodHandles.constant(Class<?> type, Object value)	Produces a method handle of the requested return type which returns the given constant value every time it is invoked.
boolean	MethodType.equals(Object x)	Compares the specified object with this type for equality.
Object	VarHandle.get(Object... args)	Returns the value of a variable, with memory semantics of reading as if the variable was declared non-volatile.
Object	VarHandle.getAcquire(Object... args)	Returns the value of a variable, and ensures that subsequent loads and stores are not reordered before this access.
Object	VarHandle.getAndAdd(Object... args)	Atomically adds the value to the current value of a variable with the memory semantics of VarHandle.setVolatile(java.lang.Object...), and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getVolatile(java.lang.Object...).
Object	VarHandle.getAndAddAcquire(Object... args)	Atomically adds the value to the current value of a variable with the memory semantics of VarHandle.set(java.lang.Object...), and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getAcquire(java.lang.Object...).
Object	VarHandle.getAndAddRelease(Object... args)	Atomically adds the value to the current value of a variable with the memory semantics of VarHandle.setRelease(java.lang.Object...), and returns the variable's previous value, as accessed with the memory semantics of VarHandle.get(java.lang.Object...).
Object	VarHandle.getAndBitwiseAnd(Object... args)	Atomically sets the value of a variable to the result of bitwise AND between the variable's current value and the mask with the memory semantics of VarHandle.setVolatile(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getVolatile(java.lang.Object...).
Object	VarHandle.getAndBitwiseAndAcquire(Object... args)	Atomically sets the value of a variable to the result of bitwise AND between the variable's current value and the mask with the memory semantics of VarHandle.set(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getAcquire(java.lang.Object...).
Object	VarHandle.getAndBitwiseAndRelease(Object... args)	Atomically sets the value of a variable to the result of bitwise AND between the variable's current value and the mask with the memory semantics of VarHandle.setRelease(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.get(java.lang.Object...).
Object	VarHandle.getAndBitwiseOr(Object... args)	Atomically sets the value of a variable to the result of bitwise OR between the variable's current value and the mask with the memory semantics of VarHandle.setVolatile(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getVolatile(java.lang.Object...).
Object	VarHandle.getAndBitwiseOrAcquire(Object... args)	Atomically sets the value of a variable to the result of bitwise OR between the variable's current value and the mask with the memory semantics of VarHandle.set(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getAcquire(java.lang.Object...).
Object	VarHandle.getAndBitwiseOrRelease(Object... args)	Atomically sets the value of a variable to the result of bitwise OR between the variable's current value and the mask with the memory semantics of VarHandle.setRelease(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.get(java.lang.Object...).
Object	VarHandle.getAndBitwiseXor(Object... args)	Atomically sets the value of a variable to the result of bitwise XOR between the variable's current value and the mask with the memory semantics of VarHandle.setVolatile(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getVolatile(java.lang.Object...).
Object	VarHandle.getAndBitwiseXorAcquire(Object... args)	Atomically sets the value of a variable to the result of bitwise XOR between the variable's current value and the mask with the memory semantics of VarHandle.set(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getAcquire(java.lang.Object...).
Object	VarHandle.getAndBitwiseXorRelease(Object... args)	Atomically sets the value of a variable to the result of bitwise XOR between the variable's current value and the mask with the memory semantics of VarHandle.setRelease(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.get(java.lang.Object...).
Object	VarHandle.getAndSet(Object... args)	Atomically sets the value of a variable to the newValue with the memory semantics of VarHandle.setVolatile(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getVolatile(java.lang.Object...).
Object	VarHandle.getAndSetAcquire(Object... args)	Atomically sets the value of a variable to the newValue with the memory semantics of VarHandle.set(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.getAcquire(java.lang.Object...).
Object	VarHandle.getAndSetRelease(Object... args)	Atomically sets the value of a variable to the newValue with the memory semantics of VarHandle.setRelease(java.lang.Object...) and returns the variable's previous value, as accessed with the memory semantics of VarHandle.get(java.lang.Object...).
Object	VarHandle.getOpaque(Object... args)	Returns the value of a variable, accessed in program order, but with no assurance of memory ordering effects with respect to other threads.
Object	VarHandle.getVolatile(Object... args)	Returns the value of a variable, with memory semantics of reading as if the variable was declared volatile.
static MethodHandle	MethodHandles.insertArguments(MethodHandle target, int pos, Object... values)	Provides a target method handle with one or more bound arguments in advance of the method handle's invocation.
Object	MethodHandle.invoke(Object... args)	Invokes the method handle, allowing any caller type descriptor, and optionally performing conversions on arguments and return values.
Object	MethodHandle.invokeExact(Object... args)	Invokes the method handle, allowing any caller type descriptor, but requiring an exact type match.
Object	MethodHandle.invokeWithArguments(Object... arguments)	Performs a variable arity invocation, passing the arguments in the given list to the method handle, as if via an inexact invoke from a call site which mentions only the type Object, and whose arity is the length of the argument list.
static boolean	MethodHandleProxies.isWrapperInstance(Object x)	Determines if the given object was produced by a call to asInterfaceInstance.
static CallSite	StringConcatFactory.makeConcatWithConstants(MethodHandles.Lookup lookup, String name, MethodType concatType, String recipe, Object... constants)	Facilitates the creation of optimized String concatenation methods, that can be used to efficiently concatenate a known number of arguments of known types, possibly after type adaptation and partial evaluation of arguments.
void	VarHandle.set(Object... args)	Sets the value of a variable to the newValue, with memory semantics of setting as if the variable was declared non-volatile and non-final.
void	VarHandle.setOpaque(Object... args)	Sets the value of a variable to the newValue, in program order, but with no assurance of memory ordering effects with respect to other threads.
void	VarHandle.setRelease(Object... args)	Sets the value of a variable to the newValue, and ensures that prior loads and stores are not reordered after this access.
void	VarHandle.setVolatile(Object... args)	Sets the value of a variable to the newValue, with memory semantics of setting as if the variable was declared volatile.
boolean	VarHandle.weakCompareAndSet(Object... args)	Possibly atomically sets the value of a variable to the newValue with the memory semantics of VarHandle.setVolatile(java.lang.Object...) if the variable's current value, referred to as the witness value, == the expectedValue, as accessed with the memory semantics of VarHandle.getVolatile(java.lang.Object...).
boolean	VarHandle.weakCompareAndSetAcquire(Object... args)	Possibly atomically sets the value of a variable to the newValue with the semantics of VarHandle.set(java.lang.Object...) if the variable's current value, referred to as the witness value, == the expectedValue, as accessed with the memory semantics of VarHandle.getAcquire(java.lang.Object...).
boolean	VarHandle.weakCompareAndSetPlain(Object... args)	Possibly atomically sets the value of a variable to the newValue with the semantics of VarHandle.set(java.lang.Object...) if the variable's current value, referred to as the witness value, == the expectedValue, as accessed with the memory semantics of VarHandle.get(java.lang.Object...).
boolean	VarHandle.weakCompareAndSetRelease(Object... args)	Possibly atomically sets the value of a variable to the newValue with the semantics of VarHandle.setRelease(java.lang.Object...) if the variable's current value, referred to as the witness value, == the expectedValue, as accessed with the memory semantics of VarHandle.get(java.lang.Object...).
static MethodHandle	MethodHandleProxies.wrapperInstanceTarget(Object x)	Produces or recovers a target method handle which is behaviorally equivalent to the unique method of this wrapper instance.
static Class<?>	MethodHandleProxies.wrapperInstanceType(Object x)	Recovers the unique single-method interface type for which this wrapper instance was created.

Constructors in java.lang.invoke with parameters of type Object

Constructor	Description
SerializedLambda(Class<?> capturingClass, String functionalInterfaceClass, String functionalInterfaceMethodName, String functionalInterfaceMethodSignature, int implMethodKind, String implClass, String implMethodName, String implMethodSignature, String instantiatedMethodType, Object[] capturedArgs)	Create a SerializedLambda from the low-level information present at the lambda factory site.

Uses of Object in java.lang.management

Subclasses of Object in java.lang.management

Modifier and Type	Class	Description
class	LockInfo	Information about a lock.
class	ManagementFactory	The ManagementFactory class is a factory class for getting managed beans for the Java platform.
class	ManagementPermission	The permission which the SecurityManager will check when code that is running with a SecurityManager calls methods defined in the management interface for the Java platform.
class	MemoryNotificationInfo	The information about a memory notification.
class	MemoryUsage	A MemoryUsage object represents a snapshot of memory usage.
class	MonitorInfo	Information about an object monitor lock.
class	ThreadInfo	Thread information.

Uses of Object in java.lang.module

Subclasses of Object in java.lang.module

Modifier and Type	Class	Description
class	Configuration	A configuration that is the result of resolution or resolution with service binding.
class	FindException	Thrown by a ModuleFinder when an error occurs finding a module.
class	InvalidModuleDescriptorException	Thrown when reading a module descriptor and the module descriptor is found to be malformed or otherwise cannot be interpreted as a module descriptor.
class	ModuleDescriptor	A module descriptor.
static class	ModuleDescriptor.Builder	A builder for building ModuleDescriptor objects.
static class	ModuleDescriptor.Exports	A package exported by a module, may be qualified or unqualified.
static class	ModuleDescriptor.Opens	A package opened by a module, may be qualified or unqualified.
static class	ModuleDescriptor.Provides	A service that a module provides one or more implementations of.
static class	ModuleDescriptor.Requires	A dependence upon a module
static class	ModuleDescriptor.Version	A module's version string.
class	ModuleReference	A reference to a module's content.
class	ResolutionException	Thrown when resolving a set of modules, or resolving a set of modules with service binding, fails.
class	ResolvedModule	A module in a graph of resolved modules.

Methods in java.lang.module with parameters of type Object

Modifier and Type	Method	Description
boolean	ModuleDescriptor.equals(Object ob)	Tests this module descriptor for equality with the given object.
boolean	ModuleDescriptor.Exports.equals(Object ob)	Tests this module export for equality with the given object.
boolean	ModuleDescriptor.Opens.equals(Object ob)	Tests this module opens for equality with the given object.
boolean	ModuleDescriptor.Provides.equals(Object ob)	Tests this provides for equality with the given object.
boolean	ModuleDescriptor.Requires.equals(Object ob)	Tests this module dependence for equality with the given object.
boolean	ModuleDescriptor.Version.equals(Object ob)	Tests this module version for equality with the given object.
boolean	ResolvedModule.equals(Object ob)	Tests this resolved module for equality with the given object.

Uses of Object in java.lang.ref

Subclasses of Object in java.lang.ref

Modifier and Type	Class	Description
class	Cleaner	Cleaner manages a set of object references and corresponding cleaning actions.
class	PhantomReference<T>	Phantom reference objects, which are enqueued after the collector determines that their referents may otherwise be reclaimed.
class	Reference<T>	Abstract base class for reference objects.
class	ReferenceQueue<T>	Reference queues, to which registered reference objects are appended by the garbage collector after the appropriate reachability changes are detected.
class	SoftReference<T>	Soft reference objects, which are cleared at the discretion of the garbage collector in response to memory demand.
class	WeakReference<T>	Weak reference objects, which do not prevent their referents from being made finalizable, finalized, and then reclaimed.

Methods in java.lang.ref with parameters of type Object

Modifier and Type	Method	Description
static void	Reference.reachabilityFence(Object ref)	Ensures that the object referenced by the given reference remains strongly reachable, regardless of any prior actions of the program that might otherwise cause the object to become unreachable; thus, the referenced object is not reclaimable by garbage collection at least until after the invocation of this method.
Cleaner.Cleanable	Cleaner.register(Object obj, Runnable action)	Registers an object and a cleaning action to run when the object becomes phantom reachable.

Uses of Object in java.lang.reflect

Subclasses of Object in java.lang.reflect

Modifier and Type	Class	Description
class	AccessibleObject	The AccessibleObject class is the base class for Field, Method, and Constructor objects (known as reflected objects).
class	Array	The Array class provides static methods to dynamically create and access Java arrays.
class	Constructor<T>	Constructor provides information about, and access to, a single constructor for a class.
class	Executable	A shared superclass for the common functionality of Method and Constructor.
class	Field	A Field provides information about, and dynamic access to, a single field of a class or an interface.
class	GenericSignatureFormatError	Thrown when a syntactically malformed signature attribute is encountered by a reflective method that needs to interpret the generic signature information for a type, method or constructor.
class	InaccessibleObjectException	Thrown when Java language access checks cannot be suppressed.
class	InvocationTargetException	InvocationTargetException is a checked exception that wraps an exception thrown by an invoked method or constructor.
class	Layer	A layer of modules in the Java virtual machine.
static class	Layer.Controller	Controls a layer.
class	LayerInstantiationException	Thrown when creating a Layer fails.
class	MalformedParameterizedTypeException	Thrown when a semantically malformed parameterized type is encountered by a reflective method that needs to instantiate it.
class	MalformedParametersException	Thrown when the java.lang.reflect package attempts to read method parameters from a class file and determines that one or more parameters are malformed.
class	Method	A Method provides information about, and access to, a single method on a class or interface.
class	Modifier	The Modifier class provides static methods and constants to decode class and member access modifiers.
class	Module	Represents a run-time module, either named or unnamed.
class	Parameter	Information about method parameters.
class	Proxy	Proxy provides static methods for creating objects that act like instances of interfaces but allow for customized method invocation.
class	ReflectPermission	The Permission class for reflective operations.
class	UndeclaredThrowableException	Thrown by a method invocation on a proxy instance if its invocation handler's invoke method throws a checked exception (a Throwable that is not assignable to RuntimeException or Error) that is not assignable to any of the exception types declared in the throws clause of the method that was invoked on the proxy instance and dispatched to the invocation handler.

Methods in java.lang.reflect that return Object

Modifier and Type	Method	Description
static Object	Array.get(Object array, int index)	Returns the value of the indexed component in the specified array object.
Object	Field.get(Object obj)	Returns the value of the field represented by this Field, on the specified object.
Object	Method.getDefaultValue()	Returns the default value for the annotation member represented by this Method instance.
Object	InvocationHandler.invoke(Object proxy, Method method, Object[] args)	Processes a method invocation on a proxy instance and returns the result.
Object	Method.invoke(Object obj, Object... args)	Invokes the underlying method represented by this Method object, on the specified object with the specified parameters.
static Object	Array.newInstance(Class<?> componentType, int length)	Creates a new array with the specified component type and length.
static Object	Array.newInstance(Class<?> componentType, int... dimensions)	Creates a new array with the specified component type and dimensions.
static Object	Proxy.newProxyInstance(ClassLoader loader, Class<?>[] interfaces, InvocationHandler h)	Returns a proxy instance for the specified interfaces that dispatches method invocations to the specified invocation handler.

Methods in java.lang.reflect with parameters of type Object

Modifier and Type	Method	Description
boolean	AccessibleObject.canAccess(Object obj)	Test if the caller can access this reflected object.
boolean	Constructor.equals(Object obj)	Compares this Constructor against the specified object.
boolean	Field.equals(Object obj)	Compares this Field against the specified object.
boolean	Method.equals(Object obj)	Compares this Method against the specified object.
boolean	Parameter.equals(Object obj)	Compares based on the executable and the index.
static Object	Array.get(Object array, int index)	Returns the value of the indexed component in the specified array object.
Object	Field.get(Object obj)	Returns the value of the field represented by this Field, on the specified object.
static boolean	Array.getBoolean(Object array, int index)	Returns the value of the indexed component in the specified array object, as a boolean.
boolean	Field.getBoolean(Object obj)	Gets the value of a static or instance boolean field.
static byte	Array.getByte(Object array, int index)	Returns the value of the indexed component in the specified array object, as a byte.
byte	Field.getByte(Object obj)	Gets the value of a static or instance byte field.
static char	Array.getChar(Object array, int index)	Returns the value of the indexed component in the specified array object, as a char.
char	Field.getChar(Object obj)	Gets the value of a static or instance field of type char or of another primitive type convertible to type char via a widening conversion.
static double	Array.getDouble(Object array, int index)	Returns the value of the indexed component in the specified array object, as a double.
double	Field.getDouble(Object obj)	Gets the value of a static or instance field of type double or of another primitive type convertible to type double via a widening conversion.
static float	Array.getFloat(Object array, int index)	Returns the value of the indexed component in the specified array object, as a float.
float	Field.getFloat(Object obj)	Gets the value of a static or instance field of type float or of another primitive type convertible to type float via a widening conversion.
static int	Array.getInt(Object array, int index)	Returns the value of the indexed component in the specified array object, as an int.
int	Field.getInt(Object obj)	Gets the value of a static or instance field of type int or of another primitive type convertible to type int via a widening conversion.
static InvocationHandler	Proxy.getInvocationHandler(Object proxy)	Returns the invocation handler for the specified proxy instance.
static int	Array.getLength(Object array)	Returns the length of the specified array object, as an int.
static long	Array.getLong(Object array, int index)	Returns the value of the indexed component in the specified array object, as a long.
long	Field.getLong(Object obj)	Gets the value of a static or instance field of type long or of another primitive type convertible to type long via a widening conversion.
static short	Array.getShort(Object array, int index)	Returns the value of the indexed component in the specified array object, as a short.
short	Field.getShort(Object obj)	Gets the value of a static or instance field of type short or of another primitive type convertible to type short via a widening conversion.
Object	InvocationHandler.invoke(Object proxy, Method method, Object[] args)	Processes a method invocation on a proxy instance and returns the result.
Object	Method.invoke(Object obj, Object... args)	Invokes the underlying method represented by this Method object, on the specified object with the specified parameters.
T	Constructor.newInstance(Object... initargs)	Uses the constructor represented by this Constructor object to create and initialize a new instance of the constructor's declaring class, with the specified initialization parameters.
static void	Array.set(Object array, int index, Object value)	Sets the value of the indexed component of the specified array object to the specified new value.
void	Field.set(Object obj, Object value)	Sets the field represented by this Field object on the specified object argument to the specified new value.
static void	Array.setBoolean(Object array, int index, boolean z)	Sets the value of the indexed component of the specified array object to the specified boolean value.
void	Field.setBoolean(Object obj, boolean z)	Sets the value of a field as a boolean on the specified object.
static void	Array.setByte(Object array, int index, byte b)	Sets the value of the indexed component of the specified array object to the specified byte value.
void	Field.setByte(Object obj, byte b)	Sets the value of a field as a byte on the specified object.
static void	Array.setChar(Object array, int index, char c)	Sets the value of the indexed component of the specified array object to the specified char value.
void	Field.setChar(Object obj, char c)	Sets the value of a field as a char on the specified object.
static void	Array.setDouble(Object array, int index, double d)	Sets the value of the indexed component of the specified array object to the specified double value.
void	Field.setDouble(Object obj, double d)	Sets the value of a field as a double on the specified object.
static void	Array.setFloat(Object array, int index, float f)	Sets the value of the indexed component of the specified array object to the specified float value.
void	Field.setFloat(Object obj, float f)	Sets the value of a field as a float on the specified object.
static void	Array.setInt(Object array, int index, int i)	Sets the value of the indexed component of the specified array object to the specified int value.
void	Field.setInt(Object obj, int i)	Sets the value of a field as an int on the specified object.
static void	Array.setLong(Object array, int index, long l)	Sets the value of the indexed component of the specified array object to the specified long value.
void	Field.setLong(Object obj, long l)	Sets the value of a field as a long on the specified object.
static void	Array.setShort(Object array, int index, short s)	Sets the value of the indexed component of the specified array object to the specified short value.
void	Field.setShort(Object obj, short s)	Sets the value of a field as a short on the specified object.

Uses of Object in java.math

Subclasses of Object in java.math

Modifier and Type	Class	Description
class	BigDecimal	Immutable, arbitrary-precision signed decimal numbers.
class	BigInteger	Immutable arbitrary-precision integers.
class	MathContext	Immutable objects which encapsulate the context settings which describe certain rules for numerical operators, such as those implemented by the BigDecimal class.

Methods in java.math with parameters of type Object

Modifier and Type	Method	Description
boolean	BigDecimal.equals(Object x)	Compares this BigDecimal with the specified Object for equality.
boolean	BigInteger.equals(Object x)	Compares this BigInteger with the specified Object for equality.
boolean	MathContext.equals(Object x)	Compares this MathContext with the specified Object for equality.

Uses of Object in java.net

Subclasses of Object in java.net

Modifier and Type	Class	Description
class	Authenticator	The class Authenticator represents an object that knows how to obtain authentication for a network connection.
class	BindException	Signals that an error occurred while attempting to bind a socket to a local address and port.
class	CacheRequest	Represents channels for storing resources in the ResponseCache.
class	CacheResponse	Represent channels for retrieving resources from the ResponseCache.
class	ConnectException	Signals that an error occurred while attempting to connect a socket to a remote address and port.
class	ContentHandler	The abstract class ContentHandler is the superclass of all classes that read an Object from a URLConnection.
class	CookieHandler	A CookieHandler object provides a callback mechanism to hook up a HTTP state management policy implementation into the HTTP protocol handler.
class	CookieManager	CookieManager provides a concrete implementation of CookieHandler, which separates the storage of cookies from the policy surrounding accepting and rejecting cookies.
class	DatagramPacket	This class represents a datagram packet.
class	DatagramSocket	This class represents a socket for sending and receiving datagram packets.
class	DatagramSocketImpl	Abstract datagram and multicast socket implementation base class.
class	HttpCookie	An HttpCookie object represents an HTTP cookie, which carries state information between server and user agent.
class	HttpRetryException	Thrown to indicate that a HTTP request needs to be retried but cannot be retried automatically, due to streaming mode being enabled.
class	HttpURLConnection	A URLConnection with support for HTTP-specific features.
class	IDN	Provides methods to convert internationalized domain names (IDNs) between a normal Unicode representation and an ASCII Compatible Encoding (ACE) representation.
class	Inet4Address	This class represents an Internet Protocol version 4 (IPv4) address.
class	Inet6Address	This class represents an Internet Protocol version 6 (IPv6) address.
class	InetAddress	This class represents an Internet Protocol (IP) address.
class	InetSocketAddress	This class implements an IP Socket Address (IP address + port number) It can also be a pair (hostname + port number), in which case an attempt will be made to resolve the hostname.
class	InterfaceAddress	This class represents a Network Interface address.
class	JarURLConnection	A URL Connection to a Java ARchive (JAR) file or an entry in a JAR file.
class	MalformedURLException	Thrown to indicate that a malformed URL has occurred.
class	MulticastSocket	The multicast datagram socket class is useful for sending and receiving IP multicast packets.
class	NetPermission	This class is for various network permissions.
class	NetworkInterface	This class represents a Network Interface made up of a name, and a list of IP addresses assigned to this interface.
class	NoRouteToHostException	Signals that an error occurred while attempting to connect a socket to a remote address and port.
class	PasswordAuthentication	The class PasswordAuthentication is a data holder that is used by Authenticator.
class	PortUnreachableException	Signals that an ICMP Port Unreachable message has been received on a connected datagram.
class	ProtocolException	Thrown to indicate that there is an error in the underlying protocol, such as a TCP error.
class	Proxy	This class represents a proxy setting, typically a type (http, socks) and a socket address.
class	ProxySelector	Selects the proxy server to use, if any, when connecting to the network resource referenced by a URL.
class	ResponseCache	Represents implementations of URLConnection caches.
class	SecureCacheResponse	Represents a cache response originally retrieved through secure means, such as TLS.
class	ServerSocket	This class implements server sockets.
class	Socket	This class implements client sockets (also called just "sockets").
class	SocketAddress	This class represents a Socket Address with no protocol attachment.
class	SocketException	Thrown to indicate that there is an error creating or accessing a Socket.
class	SocketImpl	The abstract class SocketImpl is a common superclass of all classes that actually implement sockets.
class	SocketPermission	This class represents access to a network via sockets.
class	SocketTimeoutException	Signals that a timeout has occurred on a socket read or accept.
class	StandardSocketOptions	Defines the standard socket options.
class	UnknownHostException	Thrown to indicate that the IP address of a host could not be determined.
class	UnknownServiceException	Thrown to indicate that an unknown service exception has occurred.
class	URI	Represents a Uniform Resource Identifier (URI) reference.
class	URISyntaxException	Checked exception thrown to indicate that a string could not be parsed as a URI reference.
class	URL	Class URL represents a Uniform Resource Locator, a pointer to a "resource" on the World Wide Web.
class	URLClassLoader	This class loader is used to load classes and resources from a search path of URLs referring to both JAR files and directories.
class	URLConnection	The abstract class URLConnection is the superclass of all classes that represent a communications link between the application and a URL.
class	URLDecoder	Utility class for HTML form decoding.
class	URLEncoder	Utility class for HTML form encoding.
class	URLPermission	Represents permission to access a resource or set of resources defined by a given url, and for a given set of user-settable request methods and request headers.
class	URLStreamHandler	The abstract class URLStreamHandler is the common superclass for all stream protocol handlers.

Methods in java.net that return Object

Modifier and Type	Method	Description
Object	HttpCookie.clone()	Create and return a copy of this object.
abstract Object	ContentHandler.getContent(URLConnection urlc)	Given a URL connect stream positioned at the beginning of the representation of an object, this method reads that stream and creates an object from it.
Object	ContentHandler.getContent(URLConnection urlc, Class[] classes)	Given a URL connect stream positioned at the beginning of the representation of an object, this method reads that stream and creates an object that matches one of the types specified.
Object	URL.getContent()	Gets the contents of this URL.
Object	URL.getContent(Class<?>[] classes)	Gets the contents of this URL.
Object	URLConnection.getContent()	Retrieves the contents of this URL connection.
Object	URLConnection.getContent(Class<?>[] classes)	Retrieves the contents of this URL connection.
Object	SocketOptions.getOption(int optID)	Fetch the value of an option.

Methods in java.net with parameters of type Object

Modifier and Type	Method	Description
boolean	HttpCookie.equals(Object obj)	Test the equality of two HTTP cookies.
boolean	Inet4Address.equals(Object obj)	Compares this object against the specified object.
boolean	Inet6Address.equals(Object obj)	Compares this object against the specified object.
boolean	InetAddress.equals(Object obj)	Compares this object against the specified object.
boolean	InetSocketAddress.equals(Object obj)	Compares this object against the specified object.
boolean	InterfaceAddress.equals(Object obj)	Compares this object against the specified object.
boolean	NetworkInterface.equals(Object obj)	Compares this object against the specified object.
boolean	Proxy.equals(Object obj)	Compares this object against the specified object.
boolean	SocketPermission.equals(Object obj)	Checks two SocketPermission objects for equality.
boolean	URI.equals(Object ob)	Tests this URI for equality with another object.
boolean	URL.equals(Object obj)	Compares this URL for equality with another object.
boolean	URLPermission.equals(Object p)	Returns true if, this.getActions().equals(p.getActions()) and p's url equals this's url.
void	SocketOptions.setOption(int optID, Object value)	Enable/disable the option specified by optID.

Uses of Object in java.net.spi

Subclasses of Object in java.net.spi

Modifier and Type	Class	Description
class	URLStreamHandlerProvider	URL stream handler service-provider class.

Uses of Object in java.nio

Subclasses of Object in java.nio

Modifier and Type	Class	Description
class	Buffer	A container for data of a specific primitive type.
class	BufferOverflowException	Unchecked exception thrown when a relative put operation reaches the target buffer's limit.
class	BufferUnderflowException	Unchecked exception thrown when a relative get operation reaches the source buffer's limit.
class	ByteBuffer	A byte buffer.
class	ByteOrder	A typesafe enumeration for byte orders.
class	CharBuffer	A char buffer.
class	DoubleBuffer	A double buffer.
class	FloatBuffer	A float buffer.
class	IntBuffer	An int buffer.
class	InvalidMarkException	Unchecked exception thrown when an attempt is made to reset a buffer when its mark is not defined.
class	LongBuffer	A long buffer.
class	MappedByteBuffer	A direct byte buffer whose content is a memory-mapped region of a file.
class	ReadOnlyBufferException	Unchecked exception thrown when a content-mutation method such as put or compact is invoked upon a read-only buffer.
class	ShortBuffer	A short buffer.

Methods in java.nio that return Object

Modifier and Type	Method	Description
abstract Object	Buffer.array()	Returns the array that backs this buffer (optional operation).

Methods in java.nio with parameters of type Object

Modifier and Type	Method	Description
boolean	ByteBuffer.equals(Object ob)	Tells whether or not this buffer is equal to another object.
boolean	CharBuffer.equals(Object ob)	Tells whether or not this buffer is equal to another object.
boolean	DoubleBuffer.equals(Object ob)	Tells whether or not this buffer is equal to another object.
boolean	FloatBuffer.equals(Object ob)	Tells whether or not this buffer is equal to another object.
boolean	IntBuffer.equals(Object ob)	Tells whether or not this buffer is equal to another object.
boolean	LongBuffer.equals(Object ob)	Tells whether or not this buffer is equal to another object.
boolean	ShortBuffer.equals(Object ob)	Tells whether or not this buffer is equal to another object.

Uses of Object in java.nio.channels

Subclasses of Object in java.nio.channels

Modifier and Type	Class	Description
class	AcceptPendingException	Unchecked exception thrown when an attempt is made to initiate an accept operation on a channel and a previous accept operation has not completed.
class	AlreadyBoundException	Unchecked exception thrown when an attempt is made to bind the socket a network oriented channel that is already bound.
class	AlreadyConnectedException	Unchecked exception thrown when an attempt is made to connect a SocketChannel that is already connected.
class	AsynchronousChannelGroup	A grouping of asynchronous channels for the purpose of resource sharing.
class	AsynchronousCloseException	Checked exception received by a thread when another thread closes the channel or the part of the channel upon which it is blocked in an I/O operation.
class	AsynchronousFileChannel	An asynchronous channel for reading, writing, and manipulating a file.
class	AsynchronousServerSocketChannel	An asynchronous channel for stream-oriented listening sockets.
class	AsynchronousSocketChannel	An asynchronous channel for stream-oriented connecting sockets.
class	CancelledKeyException	Unchecked exception thrown when an attempt is made to use a selection key that is no longer valid.
class	Channels	Utility methods for channels and streams.
class	ClosedByInterruptException	Checked exception received by a thread when another thread interrupts it while it is blocked in an I/O operation upon a channel.
class	ClosedChannelException	Checked exception thrown when an attempt is made to invoke or complete an I/O operation upon channel that is closed, or at least closed to that operation.
class	ClosedSelectorException	Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a closed selector.
class	ConnectionPendingException	Unchecked exception thrown when an attempt is made to connect a SocketChannel for which a non-blocking connection operation is already in progress.
class	DatagramChannel	A selectable channel for datagram-oriented sockets.
class	FileChannel	A channel for reading, writing, mapping, and manipulating a file.
static class	FileChannel.MapMode	A typesafe enumeration for file-mapping modes.
class	FileLock	A token representing a lock on a region of a file.
class	FileLockInterruptionException	Checked exception received by a thread when another thread interrupts it while it is waiting to acquire a file lock.
class	IllegalBlockingModeException	Unchecked exception thrown when a blocking-mode-specific operation is invoked upon a channel in the incorrect blocking mode.
class	IllegalChannelGroupException	Unchecked exception thrown when an attempt is made to open a channel in a group that was not created by the same provider.
class	IllegalSelectorException	Unchecked exception thrown when an attempt is made to register a channel with a selector that was not created by the provider that created the channel.
class	InterruptedByTimeoutException	Checked exception received by a thread when a timeout elapses before an asynchronous operation completes.
class	MembershipKey	A token representing the membership of an Internet Protocol (IP) multicast group.
class	NoConnectionPendingException	Unchecked exception thrown when the finishConnect method of a SocketChannel is invoked without first successfully invoking its connect method.
class	NonReadableChannelException	Unchecked exception thrown when an attempt is made to read from a channel that was not originally opened for reading.
class	NonWritableChannelException	Unchecked exception thrown when an attempt is made to write to a channel that was not originally opened for writing.
class	NotYetBoundException	Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a server socket channel that is not yet bound.
class	NotYetConnectedException	Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a socket channel that is not yet connected.
class	OverlappingFileLockException	Unchecked exception thrown when an attempt is made to acquire a lock on a region of a file that overlaps a region already locked by the same Java virtual machine, or when another thread is already waiting to lock an overlapping region of the same file.
class	Pipe	A pair of channels that implements a unidirectional pipe.
static class	Pipe.SinkChannel	A channel representing the writable end of a Pipe.
static class	Pipe.SourceChannel	A channel representing the readable end of a Pipe.
class	ReadPendingException	Unchecked exception thrown when an attempt is made to read from an asynchronous socket channel and a previous read has not completed.
class	SelectableChannel	A channel that can be multiplexed via a Selector.
class	SelectionKey	A token representing the registration of a SelectableChannel with a Selector.
class	Selector	A multiplexor of SelectableChannel objects.
class	ServerSocketChannel	A selectable channel for stream-oriented listening sockets.
class	ShutdownChannelGroupException	Unchecked exception thrown when an attempt is made to construct a channel in a group that is shutdown or the completion handler for an I/O operation cannot be invoked because the channel group has terminated.
class	SocketChannel	A selectable channel for stream-oriented connecting sockets.
class	UnresolvedAddressException	Unchecked exception thrown when an attempt is made to invoke a network operation upon an unresolved socket address.
class	UnsupportedAddressTypeException	Unchecked exception thrown when an attempt is made to bind or connect to a socket address of a type that is not supported.
class	WritePendingException	Unchecked exception thrown when an attempt is made to write to an asynchronous socket channel and a previous write has not completed.

Methods in java.nio.channels that return Object

Modifier and Type	Method	Description
Object	SelectionKey.attach(Object ob)	Attaches the given object to this key.
Object	SelectionKey.attachment()	Retrieves the current attachment.
abstract Object	SelectableChannel.blockingLock()	Retrieves the object upon which the configureBlocking and register methods synchronize.

Methods in java.nio.channels with parameters of type Object

Modifier and Type	Method	Description
Object	SelectionKey.attach(Object ob)	Attaches the given object to this key.
abstract SelectionKey	SelectableChannel.register(Selector sel, int ops, Object att)	Registers this channel with the given selector, returning a selection key.

Uses of Object in java.nio.channels.spi

Subclasses of Object in java.nio.channels.spi

Modifier and Type	Class	Description
class	AbstractInterruptibleChannel	Base implementation class for interruptible channels.
class	AbstractSelectableChannel	Base implementation class for selectable channels.
class	AbstractSelectionKey	Base implementation class for selection keys.
class	AbstractSelector	Base implementation class for selectors.
class	AsynchronousChannelProvider	Service-provider class for asynchronous channels.
class	SelectorProvider	Service-provider class for selectors and selectable channels.

Methods in java.nio.channels.spi that return Object

Modifier and Type	Method	Description
Object	AbstractSelectableChannel.blockingLock()

Methods in java.nio.channels.spi with parameters of type Object

Modifier and Type	Method	Description
SelectionKey	AbstractSelectableChannel.register(Selector sel, int ops, Object att)	Registers this channel with the given selector, returning a selection key.
protected abstract SelectionKey	AbstractSelector.register(AbstractSelectableChannel ch, int ops, Object att)	Registers the given channel with this selector.

Uses of Object in java.nio.charset

Subclasses of Object in java.nio.charset

Modifier and Type	Class	Description
class	CharacterCodingException	Checked exception thrown when a character encoding or decoding error occurs.
class	Charset	A named mapping between sequences of sixteen-bit Unicode code units and sequences of bytes.
class	CharsetDecoder	An engine that can transform a sequence of bytes in a specific charset into a sequence of sixteen-bit Unicode characters.
class	CharsetEncoder	An engine that can transform a sequence of sixteen-bit Unicode characters into a sequence of bytes in a specific charset.
class	CoderMalfunctionError	Error thrown when the decodeLoop method of a CharsetDecoder, or the encodeLoop method of a CharsetEncoder, throws an unexpected exception.
class	CoderResult	A description of the result state of a coder.
class	CodingErrorAction	A typesafe enumeration for coding-error actions.
class	IllegalCharsetNameException	Unchecked exception thrown when a string that is not a legal charset name is used as such.
class	MalformedInputException	Checked exception thrown when an input byte sequence is not legal for given charset, or an input character sequence is not a legal sixteen-bit Unicode sequence.
class	StandardCharsets	Constant definitions for the standard Charsets.
class	UnmappableCharacterException	Checked exception thrown when an input character (or byte) sequence is valid but cannot be mapped to an output byte (or character) sequence.
class	UnsupportedCharsetException	Unchecked exception thrown when no support is available for a requested charset.

Methods in java.nio.charset with parameters of type Object

Modifier and Type	Method	Description
boolean	Charset.equals(Object ob)	Tells whether or not this object is equal to another.

Uses of Object in java.nio.charset.spi

Subclasses of Object in java.nio.charset.spi

Modifier and Type	Class	Description
class	CharsetProvider	Charset service-provider class.

Uses of Object in java.nio.file

Subclasses of Object in java.nio.file

Modifier and Type	Class	Description
class	AccessDeniedException	Checked exception thrown when a file system operation is denied, typically due to a file permission or other access check.
class	AtomicMoveNotSupportedException	Checked exception thrown when a file cannot be moved as an atomic file system operation.
class	ClosedDirectoryStreamException	Unchecked exception thrown when an attempt is made to invoke an operation on a directory stream that is closed.
class	ClosedFileSystemException	Unchecked exception thrown when an attempt is made to invoke an operation on a file and the file system is closed.
class	ClosedWatchServiceException	Unchecked exception thrown when an attempt is made to invoke an operation on a watch service that is closed.
class	DirectoryIteratorException	Runtime exception thrown if an I/O error is encountered when iterating over the entries in a directory.
class	DirectoryNotEmptyException	Checked exception thrown when a file system operation fails because a directory is not empty.
class	FileAlreadyExistsException	Checked exception thrown when an attempt is made to create a file or directory and a file of that name already exists.
class	Files	This class consists exclusively of static methods that operate on files, directories, or other types of files.
class	FileStore	Storage for files.
class	FileSystem	Provides an interface to a file system and is the factory for objects to access files and other objects in the file system.
class	FileSystemAlreadyExistsException	Runtime exception thrown when an attempt is made to create a file system that already exists.
class	FileSystemException	Thrown when a file system operation fails on one or two files.
class	FileSystemLoopException	Checked exception thrown when a file system loop, or cycle, is encountered.
class	FileSystemNotFoundException	Runtime exception thrown when a file system cannot be found.
class	FileSystems	Factory methods for file systems.
class	InvalidPathException	Unchecked exception thrown when path string cannot be converted into a Path because the path string contains invalid characters, or the path string is invalid for other file system specific reasons.
class	LinkPermission	The Permission class for link creation operations.
class	NoSuchFileException	Checked exception thrown when an attempt is made to access a file that does not exist.
class	NotDirectoryException	Checked exception thrown when a file system operation, intended for a directory, fails because the file is not a directory.
class	NotLinkException	Checked exception thrown when a file system operation fails because a file is not a symbolic link.
class	Paths	This class consists exclusively of static methods that return a Path by converting a path string or URI.
class	ProviderMismatchException	Unchecked exception thrown when an attempt is made to invoke a method on an object created by one file system provider with a parameter created by a different file system provider.
class	ProviderNotFoundException	Runtime exception thrown when a provider of the required type cannot be found.
class	ReadOnlyFileSystemException	Unchecked exception thrown when an attempt is made to update an object associated with a read-only FileSystem.
class	SimpleFileVisitor<T>	A simple visitor of files with default behavior to visit all files and to re-throw I/O errors.
class	StandardWatchEventKinds	Defines the standard event kinds.

Fields in java.nio.file with type parameters of type Object

Modifier and Type	Field	Description
static WatchEvent.Kind<Object>	StandardWatchEventKinds.OVERFLOW	A special event to indicate that events may have been lost or discarded.

Methods in java.nio.file that return Object

Modifier and Type	Method	Description
static Object	Files.getAttribute(Path path, String attribute, LinkOption... options)	Reads the value of a file attribute.
abstract Object	FileStore.getAttribute(String attribute)	Reads the value of a file store attribute.

Methods in java.nio.file that return types with arguments of type Object

Modifier and Type	Method	Description
static Map<String,Object>	Files.readAttributes(Path path, String attributes, LinkOption... options)	Reads a set of file attributes as a bulk operation.

Methods in java.nio.file with parameters of type Object

Modifier and Type	Method	Description
boolean	Path.equals(Object other)	Tests this path for equality with the given object.
static Path	Files.setAttribute(Path path, String attribute, Object value, LinkOption... options)	Sets the value of a file attribute.

Uses of Object in java.nio.file.attribute

Subclasses of Object in java.nio.file.attribute

Modifier and Type	Class	Description
class	AclEntry	An entry in an access control list (ACL).
static class	AclEntry.Builder	A builder of AclEntry objects.
class	FileTime	Represents the value of a file's time stamp attribute.
class	PosixFilePermissions	This class consists exclusively of static methods that operate on sets of PosixFilePermission objects.
class	UserPrincipalLookupService	An object to lookup user and group principals by name.
class	UserPrincipalNotFoundException	Checked exception thrown when a lookup of UserPrincipal fails because the principal does not exist.

Methods in java.nio.file.attribute that return Object

Modifier and Type	Method	Description
Object	BasicFileAttributes.fileKey()	Returns an object that uniquely identifies the given file, or null if a file key is not available.

Methods in java.nio.file.attribute with parameters of type Object

Modifier and Type	Method	Description
boolean	AclEntry.equals(Object ob)	Compares the specified object with this ACL entry for equality.
boolean	FileTime.equals(Object obj)	Tests this FileTime for equality with the given object.

Uses of Object in java.nio.file.spi

Subclasses of Object in java.nio.file.spi

Modifier and Type	Class	Description
class	FileSystemProvider	Service-provider class for file systems.
class	FileTypeDetector	A file type detector for probing a file to guess its file type.

Methods in java.nio.file.spi that return types with arguments of type Object

Modifier and Type	Method	Description
abstract Map<String,Object>	FileSystemProvider.readAttributes(Path path, String attributes, LinkOption... options)	Reads a set of file attributes as a bulk operation.

Methods in java.nio.file.spi with parameters of type Object

Modifier and Type	Method	Description
abstract void	FileSystemProvider.setAttribute(Path path, String attribute, Object value, LinkOption... options)	Sets the value of a file attribute.

Uses of Object in java.rmi

Subclasses of Object in java.rmi

Modifier and Type	Class	Description
class	AccessException	An AccessException is thrown by certain methods of the java.rmi.Naming class (specifically bind, rebind, and unbind) and methods of the java.rmi.activation.ActivationSystem interface to indicate that the caller does not have permission to perform the action requested by the method call.
class	AlreadyBoundException	An AlreadyBoundException is thrown if an attempt is made to bind an object in the registry to a name that already has an associated binding.
class	ConnectException	A ConnectException is thrown if a connection is refused to the remote host for a remote method call.
class	ConnectIOException	A ConnectIOException is thrown if an IOException occurs while making a connection to the remote host for a remote method call.
class	MarshalException	A MarshalException is thrown if a java.io.IOException occurs while marshalling the remote call header, arguments or return value for a remote method call.
class	MarshalledObject<T>	A MarshalledObject contains a byte stream with the serialized representation of an object given to its constructor.
class	Naming	The Naming class provides methods for storing and obtaining references to remote objects in a remote object registry.
class	NoSuchObjectException	A NoSuchObjectException is thrown if an attempt is made to invoke a method on an object that no longer exists in the remote virtual machine.
class	NotBoundException	A NotBoundException is thrown if an attempt is made to lookup or unbind in the registry a name that has no associated binding.
class	RemoteException	A RemoteException is the common superclass for a number of communication-related exceptions that may occur during the execution of a remote method call.
class	RMISecurityException	Deprecated. Use SecurityException instead. Application code should never directly reference this class, and RMISecurityManager no longer throws this subclass of java.lang.SecurityException.
class	RMISecurityManager	Deprecated. Use SecurityManager instead.
class	ServerError	A ServerError is thrown as a result of a remote method invocation when an Error is thrown while processing the invocation on the server, either while unmarshalling the arguments, executing the remote method itself, or marshalling the return value.
class	ServerException	A ServerException is thrown as a result of a remote method invocation when a RemoteException is thrown while processing the invocation on the server, either while unmarshalling the arguments or executing the remote method itself.
class	ServerRuntimeException	Deprecated. no replacement
class	StubNotFoundException	A StubNotFoundException is thrown if a valid stub class could not be found for a remote object when it is exported.
class	UnexpectedException	An UnexpectedException is thrown if the client of a remote method call receives, as a result of the call, a checked exception that is not among the checked exception types declared in the throws clause of the method in the remote interface.
class	UnknownHostException	An UnknownHostException is thrown if a java.net.UnknownHostException occurs while creating a connection to the remote host for a remote method call.
class	UnmarshalException	An UnmarshalException can be thrown while unmarshalling the parameters or results of a remote method call if any of the following conditions occur: if an exception occurs while unmarshalling the call header if the protocol for the return value is invalid if a java.io.IOException occurs unmarshalling parameters (on the server side) or the return value (on the client side).

Methods in java.rmi with parameters of type Object

Modifier and Type	Method	Description
boolean	MarshalledObject.equals(Object obj)	Compares this MarshalledObject to another object.

Uses of Object in java.rmi.activation

Subclasses of Object in java.rmi.activation

Modifier and Type	Class	Description
class	Activatable	The Activatable class provides support for remote objects that require persistent access over time and that can be activated by the system.
class	ActivateFailedException	This exception is thrown by the RMI runtime when activation fails during a remote call to an activatable object.
class	ActivationDesc	An activation descriptor contains the information necessary to activate an object: the object's group identifier, the object's fully-qualified class name, the object's code location (the location of the class), a codebase URL path, the object's restart "mode", and, a "marshalled" object that can contain object specific initialization data.
class	ActivationException	General exception used by the activation interfaces.
class	ActivationGroup	An ActivationGroup is responsible for creating new instances of "activatable" objects in its group, informing its ActivationMonitor when either: its object's become active or inactive, or the group as a whole becomes inactive.
class	ActivationGroup_Stub	ActivationGroup_Stub is a stub class for the subclasses of java.rmi.activation.ActivationGroup that are exported as a java.rmi.server.UnicastRemoteObject.
class	ActivationGroupDesc	An activation group descriptor contains the information necessary to create/recreate an activation group in which to activate objects.
static class	ActivationGroupDesc.CommandEnvironment	Startup options for ActivationGroup implementations.
class	ActivationGroupID	The identifier for a registered activation group serves several purposes: identifies the group uniquely within the activation system, and contains a reference to the group's activation system so that the group can contact its activation system when necessary.
class	ActivationID	Activation makes use of special identifiers to denote remote objects that can be activated over time.
class	UnknownGroupException	An UnknownGroupException is thrown by methods of classes and interfaces in the java.rmi.activation package when the ActivationGroupID parameter to the method is determined to be invalid, i.e., not known by the ActivationSystem.
class	UnknownObjectException	An UnknownObjectException is thrown by methods of classes and interfaces in the java.rmi.activation package when the ActivationID parameter to the method is determined to be invalid.

Methods in java.rmi.activation with parameters of type Object

Modifier and Type	Method	Description
boolean	ActivationDesc.equals(Object obj)	Compares two activation descriptors for content equality.
boolean	ActivationGroupDesc.CommandEnvironment.equals(Object obj)	Compares two command environments for content equality.
boolean	ActivationGroupDesc.equals(Object obj)	Compares two activation group descriptors for content equality.
boolean	ActivationGroupID.equals(Object obj)	Compares two group identifiers for content equality.
boolean	ActivationID.equals(Object obj)	Compares two activation ids for content equality.

Uses of Object in java.rmi.dgc

Subclasses of Object in java.rmi.dgc

Modifier and Type	Class	Description
class	Lease	A lease contains a unique VM identifier and a lease duration.
class	VMID	A VMID is a identifier that is unique across all Java virtual machines.

Methods in java.rmi.dgc with parameters of type Object

Modifier and Type	Method	Description
boolean	VMID.equals(Object obj)	Compare this VMID to another, and return true if they are the same identifier.

Uses of Object in java.rmi.registry

Subclasses of Object in java.rmi.registry

Modifier and Type	Class	Description
class	LocateRegistry	LocateRegistry is used to obtain a reference to a bootstrap remote object registry on a particular host (including the local host), or to create a remote object registry that accepts calls on a specific port.

Uses of Object in java.rmi.server

Subclasses of Object in java.rmi.server

Modifier and Type	Class	Description
class	ExportException	An ExportException is a RemoteException thrown if an attempt to export a remote object fails.
class	LogStream	Deprecated. no replacement
class	ObjID	An ObjID is used to identify a remote object exported to an RMI runtime.
class	Operation	Deprecated. no replacement
class	RemoteObject	The RemoteObject class implements the java.lang.Object behavior for remote objects.
class	RemoteObjectInvocationHandler	An implementation of the InvocationHandler interface for use with Java Remote Method Invocation (Java RMI).
class	RemoteServer	The RemoteServer class is the common superclass to server implementations and provides the framework to support a wide range of remote reference semantics.
class	RemoteStub	Deprecated. Statically generated stubs are deprecated, since stubs are generated dynamically. See UnicastRemoteObject for information about dynamic stub generation.
class	RMIClassLoader	RMIClassLoader comprises static methods to support dynamic class loading with RMI.
class	RMIClassLoaderSpi	RMIClassLoaderSpi is the service provider interface for RMIClassLoader.
class	RMISocketFactory	An RMISocketFactory instance is used by the RMI runtime in order to obtain client and server sockets for RMI calls.
class	ServerCloneException	A ServerCloneException is thrown if a remote exception occurs during the cloning of a UnicastRemoteObject.
class	ServerNotActiveException	An ServerNotActiveException is an Exception thrown during a call to RemoteServer.getClientHost if the getClientHost method is called outside of servicing a remote method call.
class	SkeletonMismatchException	Deprecated. no replacement. Skeletons are no longer required for remote method calls in the Java 2 platform v1.2 and greater.
class	SkeletonNotFoundException	Deprecated. no replacement. Skeletons are no longer required for remote method calls in the Java 2 platform v1.2 and greater.
class	SocketSecurityException	Deprecated. This class is obsolete. Use ExportException instead.
class	UID	A UID represents an identifier that is unique over time with respect to the host it is generated on, or one of 216 "well-known" identifiers.
class	UnicastRemoteObject	Used for exporting a remote object with JRMP and obtaining a stub that communicates to the remote object.

Methods in java.rmi.server that return Object

Modifier and Type	Method	Description
Object	UnicastRemoteObject.clone()	Returns a clone of the remote object that is distinct from the original.
Object	LoaderHandler.getSecurityContext(ClassLoader loader)	Deprecated. no replacement
static Object	RMIClassLoader.getSecurityContext(ClassLoader loader)	Deprecated. no replacement. As of the Java 2 platform v1.2, RMI no longer uses this method to obtain a class loader's security context.
Object	RemoteObjectInvocationHandler.invoke(Object proxy, Method method, Object[] args)	Processes a method invocation made on the encapsulating proxy instance, proxy, and returns the result.
Object	RemoteRef.invoke(Remote obj, Method method, Object[] params, long opnum)	Invoke a method.

Methods in java.rmi.server with parameters of type Object

Modifier and Type	Method	Description
boolean	ObjID.equals(Object obj)	Compares the specified object with this ObjID for equality.
boolean	RemoteObject.equals(Object obj)	Compares two remote objects for equality.
boolean	UID.equals(Object obj)	Compares the specified object with this UID for equality.
RemoteStub	ServerRef.exportObject(Remote obj, Object data)	Deprecated. Creates a client stub object for the supplied Remote object.
Object	RemoteObjectInvocationHandler.invoke(Object proxy, Method method, Object[] args)	Processes a method invocation made on the encapsulating proxy instance, proxy, and returns the result.
Object	RemoteRef.invoke(Remote obj, Method method, Object[] params, long opnum)	Invoke a method.

Uses of Object in java.security

Subclasses of Object in java.security

Modifier and Type	Class	Description
class	AccessControlContext	An AccessControlContext is used to make system resource access decisions based on the context it encapsulates.
class	AccessControlException	This exception is thrown by the AccessController to indicate that a requested access (to a critical system resource such as the file system or the network) is denied.
class	AccessController	The AccessController class is used for access control operations and decisions.
class	AlgorithmParameterGenerator	The AlgorithmParameterGenerator class is used to generate a set of parameters to be used with a certain algorithm.
class	AlgorithmParameterGeneratorSpi	This class defines the Service Provider Interface (SPI) for the AlgorithmParameterGenerator class, which is used to generate a set of parameters to be used with a certain algorithm.
class	AlgorithmParameters	This class is used as an opaque representation of cryptographic parameters.
class	AlgorithmParametersSpi	This class defines the Service Provider Interface (SPI) for the AlgorithmParameters class, which is used to manage algorithm parameters.
class	AllPermission	The AllPermission is a permission that implies all other permissions.
class	AuthProvider	This class defines login and logout methods for a provider.
class	BasicPermission	The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
class	CodeSigner	This class encapsulates information about a code signer.
class	CodeSource	This class extends the concept of a codebase to encapsulate not only the location (URL) but also the certificate chains that were used to verify signed code originating from that location.
class	DigestException	This is the generic Message Digest exception.
class	DigestInputStream	A transparent stream that updates the associated message digest using the bits going through the stream.
class	DigestOutputStream	A transparent stream that updates the associated message digest using the bits going through the stream.
class	DomainLoadStoreParameter	Configuration data that specifies the keystores in a keystore domain.
class	DrbgParameters	This class specifies the parameters used by a DRBG (Deterministic Random Bit Generator).
static class	DrbgParameters.Instantiation	DRBG parameters for instantiation.
static class	DrbgParameters.NextBytes	DRBG parameters for random bits generation.
static class	DrbgParameters.Reseed	DRBG parameters for reseed.
class	GeneralSecurityException	The GeneralSecurityException class is a generic security exception class that provides type safety for all the security-related exception classes that extend from it.
class	GuardedObject	A GuardedObject is an object that is used to protect access to another object.
class	Identity	Deprecated. This class is no longer used. Its functionality has been replaced by java.security.KeyStore, the java.security.cert package, and java.security.Principal.
class	IdentityScope	Deprecated. This class is no longer used. Its functionality has been replaced by java.security.KeyStore, the java.security.cert package, and java.security.Principal.
class	InvalidAlgorithmParameterException	This is the exception for invalid or inappropriate algorithm parameters.
class	InvalidKeyException	This is the exception for invalid Keys (invalid encoding, wrong length, uninitialized, etc).
class	InvalidParameterException	This exception, designed for use by the JCA/JCE engine classes, is thrown when an invalid parameter is passed to a method.
class	KeyException	This is the basic key exception.
class	KeyFactory	Key factories are used to convert keys (opaque cryptographic keys of type Key) into key specifications (transparent representations of the underlying key material), and vice versa.
class	KeyFactorySpi	This class defines the Service Provider Interface (SPI) for the KeyFactory class.
class	KeyManagementException	This is the general key management exception for all operations dealing with key management.
class	KeyPair	This class is a simple holder for a key pair (a public key and a private key).
class	KeyPairGenerator	The KeyPairGenerator class is used to generate pairs of public and private keys.
class	KeyPairGeneratorSpi	This class defines the Service Provider Interface (SPI) for the KeyPairGenerator class, which is used to generate pairs of public and private keys.
class	KeyRep	Standardized representation for serialized Key objects.
class	KeyStore	This class represents a storage facility for cryptographic keys and certificates.
static class	KeyStore.Builder	A description of a to-be-instantiated KeyStore object.
static class	KeyStore.CallbackHandlerProtection	A ProtectionParameter encapsulating a CallbackHandler.
static class	KeyStore.PasswordProtection	A password-based implementation of ProtectionParameter.
static class	KeyStore.PrivateKeyEntry	A KeyStore entry that holds a PrivateKey and corresponding certificate chain.
static class	KeyStore.SecretKeyEntry	A KeyStore entry that holds a SecretKey.
static class	KeyStore.TrustedCertificateEntry	A KeyStore entry that holds a trusted Certificate.
class	KeyStoreException	This is the generic KeyStore exception.
class	KeyStoreSpi	This class defines the Service Provider Interface (SPI) for the KeyStore class.
class	MessageDigest	This MessageDigest class provides applications the functionality of a message digest algorithm, such as SHA-1 or SHA-256.
class	MessageDigestSpi	This class defines the Service Provider Interface (SPI) for the MessageDigest class, which provides the functionality of a message digest algorithm, such as MD5 or SHA.
class	NoSuchAlgorithmException	This exception is thrown when a particular cryptographic algorithm is requested but is not available in the environment.
class	NoSuchProviderException	This exception is thrown when a particular security provider is requested but is not available in the environment.
class	Permission	Abstract class for representing access to a system resource.
class	PermissionCollection	Abstract class representing a collection of Permission objects.
class	Permissions	This class represents a heterogeneous collection of Permissions.
class	PKCS12Attribute	An attribute associated with a PKCS12 keystore entry.
class	Policy	A Policy object is responsible for determining whether code executing in the Java runtime environment has permission to perform a security-sensitive operation.
class	PolicySpi	This class defines the Service Provider Interface (SPI) for the Policy class.
class	PrivilegedActionException	This exception is thrown by doPrivileged(PrivilegedExceptionAction) and doPrivileged(PrivilegedExceptionAction, AccessControlContext context) to indicate that the action being performed threw a checked exception.
class	ProtectionDomain	The ProtectionDomain class encapsulates the characteristics of a domain, which encloses a set of classes whose instances are granted a set of permissions when being executed on behalf of a given set of Principals.
class	Provider	This class represents a "provider" for the Java Security API, where a provider implements some or all parts of Java Security.
static class	Provider.Service	The description of a security service.
class	ProviderException	A runtime exception for Provider exceptions (such as misconfiguration errors or unrecoverable internal errors), which may be subclassed by Providers to throw specialized, provider-specific runtime errors.
class	SecureClassLoader	This class extends ClassLoader with additional support for defining classes with an associated code source and permissions which are retrieved by the system policy by default.
class	SecureRandom	This class provides a cryptographically strong random number generator (RNG).
class	SecureRandomSpi	This class defines the Service Provider Interface (SPI) for the SecureRandom class.
class	Security	This class centralizes all security properties and common security methods.
class	SecurityPermission	This class is for security permissions.
class	Signature	The Signature class is used to provide applications the functionality of a digital signature algorithm.
class	SignatureException	This is the generic Signature exception.
class	SignatureSpi	This class defines the Service Provider Interface (SPI) for the Signature class, which is used to provide the functionality of a digital signature algorithm.
class	SignedObject	SignedObject is a class for the purpose of creating authentic runtime objects whose integrity cannot be compromised without being detected.
class	Signer	Deprecated. This class is no longer used. Its functionality has been replaced by java.security.KeyStore, the java.security.cert package, and java.security.Principal.
class	Timestamp	This class encapsulates information about a signed timestamp.
class	UnrecoverableEntryException	This exception is thrown if an entry in the keystore cannot be recovered.
class	UnrecoverableKeyException	This exception is thrown if a key in the keystore cannot be recovered.
class	UnresolvedPermission	The UnresolvedPermission class is used to hold Permissions that were "unresolved" when the Policy was initialized.
class	URIParameter	A parameter that contains a URI pointing to data intended for a PolicySpi or ConfigurationSpi implementation.

Methods in java.security that return Object

Modifier and Type	Method	Description
Object	MessageDigest.clone()	Returns a clone if the implementation is cloneable.
Object	MessageDigestSpi.clone()	Returns a clone if the implementation is cloneable.
Object	Signature.clone()	Returns a clone if the implementation is cloneable.
Object	SignatureSpi.clone()	Returns a clone if the implementation is cloneable.
Object	Provider.compute(Object key, BiFunction<? super Object,? super Object,? extends Object> remappingFunction)	Attempts to compute a mapping for the specified key and its current mapped value (or null if there is no current mapping).
Object	Provider.computeIfAbsent(Object key, Function<? super Object,? extends Object> mappingFunction)	If the specified key is not already associated with a value (or is mapped to null), attempts to compute its value using the given mapping function and enters it into this map unless null.
Object	Provider.computeIfPresent(Object key, BiFunction<? super Object,? super Object,? extends Object> remappingFunction)	If the value for the specified key is present and non-null, attempts to compute a new mapping given the key and its current mapped value.
protected abstract Object	SignatureSpi.engineGetParameter(String param)	Deprecated.
Object	Provider.get(Object key)
Object	GuardedObject.getObject()	Retrieves the guarded object, or throws an exception if access to the guarded object is denied by the guard.
Object	SignedObject.getObject()	Retrieves the encapsulated object.
Object	Provider.getOrDefault(Object key, Object defaultValue)
Object	Signature.getParameter(String param)	Deprecated.
Object	Provider.merge(Object key, Object value, BiFunction<? super Object,? super Object,? extends Object> remappingFunction)	If the specified key is not already associated with a value or is associated with null, associates it with the given value.
Object	Provider.Service.newInstance(Object constructorParameter)	Return a new instance of the implementation described by this service.
Object	Provider.put(Object key, Object value)	Sets the key property to have the specified value.
Object	Provider.putIfAbsent(Object key, Object value)	If the specified key is not already associated with a value (or is mapped to null) associates it with the given value and returns null, else returns the current value.
protected Object	KeyRep.readResolve()	Resolve the Key object.
Object	Provider.remove(Object key)	Removes the key property (and its corresponding value).
Object	Provider.replace(Object key, Object value)	Replaces the entry for the specified key only if it is currently mapped to some value.

Methods in java.security that return types with arguments of type Object

Modifier and Type	Method	Description
Enumeration<Object>	Provider.elements()
Set<Map.Entry<Object,Object>>	Provider.entrySet()	Returns an unmodifiable Set view of the property entries contained in this Provider.
Set<Map.Entry<Object,Object>>	Provider.entrySet()	Returns an unmodifiable Set view of the property entries contained in this Provider.
Enumeration<Object>	Provider.keys()
Set<Object>	Provider.keySet()	Returns an unmodifiable Set view of the property keys contained in this provider.
Collection<Object>	Provider.values()	Returns an unmodifiable Collection view of the property values contained in this provider.

Methods in java.security with parameters of type Object

Modifier and Type	Method	Description
void	Guard.checkGuard(Object object)	Determines whether or not to allow access to the guarded object object.
void	Permission.checkGuard(Object object)	Implements the guard interface for a permission.
Object	Provider.compute(Object key, BiFunction<? super Object,? super Object,? extends Object> remappingFunction)	Attempts to compute a mapping for the specified key and its current mapped value (or null if there is no current mapping).
Object	Provider.computeIfAbsent(Object key, Function<? super Object,? extends Object> mappingFunction)	If the specified key is not already associated with a value (or is mapped to null), attempts to compute its value using the given mapping function and enters it into this map unless null.
Object	Provider.computeIfPresent(Object key, BiFunction<? super Object,? super Object,? extends Object> remappingFunction)	If the value for the specified key is present and non-null, attempts to compute a new mapping given the key and its current mapped value.
protected abstract void	SignatureSpi.engineSetParameter(String param, Object value)	Deprecated. Replaced by engineSetParameter.
boolean	AccessControlContext.equals(Object obj)	Checks two AccessControlContext objects for equality.
boolean	AllPermission.equals(Object obj)	Checks two AllPermission objects for equality.
boolean	BasicPermission.equals(Object obj)	Checks two BasicPermission objects for equality.
boolean	CodeSigner.equals(Object obj)	Tests for equality between the specified object and this code signer.
boolean	CodeSource.equals(Object obj)	Tests for equality between the specified object and this object.
boolean	Identity.equals(Object identity)	Deprecated. Tests for equality between the specified object and this identity.
abstract boolean	Permission.equals(Object obj)	Checks two Permission objects for equality.
boolean	PKCS12Attribute.equals(Object obj)	Compares this PKCS12Attribute and a specified object for equality.
boolean	Principal.equals(Object another)	Compares this principal to the specified object.
boolean	Timestamp.equals(Object obj)	Tests for equality between the specified object and this timestamp.
boolean	UnresolvedPermission.equals(Object obj)	Checks two UnresolvedPermission objects for equality.
Object	Provider.get(Object key)
Object	Provider.getOrDefault(Object key, Object defaultValue)
Object	Provider.merge(Object key, Object value, BiFunction<? super Object,? super Object,? extends Object> remappingFunction)	If the specified key is not already associated with a value or is associated with null, associates it with the given value.
Object	Provider.Service.newInstance(Object constructorParameter)	Return a new instance of the implementation described by this service.
Object	Provider.put(Object key, Object value)	Sets the key property to have the specified value.
Object	Provider.putIfAbsent(Object key, Object value)	If the specified key is not already associated with a value (or is mapped to null) associates it with the given value and returns null, else returns the current value.
Object	Provider.remove(Object key)	Removes the key property (and its corresponding value).
boolean	Provider.remove(Object key, Object value)	Removes the entry for the specified key only if it is currently mapped to the specified value.
Object	Provider.replace(Object key, Object value)	Replaces the entry for the specified key only if it is currently mapped to some value.
boolean	Provider.replace(Object key, Object oldValue, Object newValue)	Replaces the entry for the specified key only if currently mapped to the specified value.
void	Signature.setParameter(String param, Object value)	Deprecated. Use setParameter.
boolean	Provider.Service.supportsParameter(Object parameter)	Test whether this Service can use the specified parameter.

Method parameters in java.security with type arguments of type Object

Modifier and Type	Method	Description
Object	Provider.compute(Object key, BiFunction<? super Object,? super Object,? extends Object> remappingFunction)	Attempts to compute a mapping for the specified key and its current mapped value (or null if there is no current mapping).
Object	Provider.compute(Object key, BiFunction<? super Object,? super Object,? extends Object> remappingFunction)	Attempts to compute a mapping for the specified key and its current mapped value (or null if there is no current mapping).
Object	Provider.compute(Object key, BiFunction<? super Object,? super Object,? extends Object> remappingFunction)	Attempts to compute a mapping for the specified key and its current mapped value (or null if there is no current mapping).
Object	Provider.computeIfAbsent(Object key, Function<? super Object,? extends Object> mappingFunction)	If the specified key is not already associated with a value (or is mapped to null), attempts to compute its value using the given mapping function and enters it into this map unless null.
Object	Provider.computeIfAbsent(Object key, Function<? super Object,? extends Object> mappingFunction)	If the specified key is not already associated with a value (or is mapped to null), attempts to compute its value using the given mapping function and enters it into this map unless null.
Object	Provider.computeIfPresent(Object key, BiFunction<? super Object,? super Object,? extends Object> remappingFunction)	If the value for the specified key is present and non-null, attempts to compute a new mapping given the key and its current mapped value.
Object	Provider.computeIfPresent(Object key, BiFunction<? super Object,? super Object,? extends Object> remappingFunction)	If the value for the specified key is present and non-null, attempts to compute a new mapping given the key and its current mapped value.
Object	Provider.computeIfPresent(Object key, BiFunction<? super Object,? super Object,? extends Object> remappingFunction)	If the value for the specified key is present and non-null, attempts to compute a new mapping given the key and its current mapped value.
void	Provider.forEach(BiConsumer<? super Object,? super Object> action)
void	Provider.forEach(BiConsumer<? super Object,? super Object> action)
Object	Provider.merge(Object key, Object value, BiFunction<? super Object,? super Object,? extends Object> remappingFunction)	If the specified key is not already associated with a value or is associated with null, associates it with the given value.
Object	Provider.merge(Object key, Object value, BiFunction<? super Object,? super Object,? extends Object> remappingFunction)	If the specified key is not already associated with a value or is associated with null, associates it with the given value.
Object	Provider.merge(Object key, Object value, BiFunction<? super Object,? super Object,? extends Object> remappingFunction)	If the specified key is not already associated with a value or is associated with null, associates it with the given value.
void	Provider.replaceAll(BiFunction<? super Object,? super Object,? extends Object> function)	Replaces each entry's value with the result of invoking the given function on that entry, in the order entries are returned by an entry set iterator, until all entries have been processed or the function throws an exception.
void	Provider.replaceAll(BiFunction<? super Object,? super Object,? extends Object> function)	Replaces each entry's value with the result of invoking the given function on that entry, in the order entries are returned by an entry set iterator, until all entries have been processed or the function throws an exception.
void	Provider.replaceAll(BiFunction<? super Object,? super Object,? extends Object> function)	Replaces each entry's value with the result of invoking the given function on that entry, in the order entries are returned by an entry set iterator, until all entries have been processed or the function throws an exception.

Constructors in java.security with parameters of type Object

Constructor	Description
GuardedObject(Object object, Guard guard)	Constructs a GuardedObject using the specified object and guard.

Uses of Object in java.security.acl

Subclasses of Object in java.security.acl

Modifier and Type	Class	Description
class	AclNotFoundException	Deprecated. This package has been replaced by java.security.Policy and related classes since 1.2.
class	LastOwnerException	Deprecated. This package has been replaced by java.security.Policy and related classes since 1.2.
class	NotOwnerException	Deprecated. This package has been replaced by java.security.Policy and related classes since 1.2.

Methods in java.security.acl that return Object

Modifier and Type	Method	Description
Object	AclEntry.clone()	Deprecated. Clones this ACL entry.

Methods in java.security.acl with parameters of type Object

Modifier and Type	Method	Description
boolean	Permission.equals(Object another)	Deprecated. Returns true if the object passed matches the permission represented in this interface.

Uses of Object in java.security.cert

Subclasses of Object in java.security.cert

Modifier and Type	Class	Description
class	Certificate	Abstract class for managing a variety of identity certificates.
protected static class	Certificate.CertificateRep	Alternate Certificate class for serialization.
class	CertificateEncodingException	Certificate Encoding Exception.
class	CertificateException	This exception indicates one of a variety of certificate problems.
class	CertificateExpiredException	Certificate Expired Exception.
class	CertificateFactory	This class defines the functionality of a certificate factory, which is used to generate certificate, certification path (CertPath) and certificate revocation list (CRL) objects from their encodings.
class	CertificateFactorySpi	This class defines the Service Provider Interface (SPI) for the CertificateFactory class.
class	CertificateNotYetValidException	Certificate is not yet valid exception.
class	CertificateParsingException	Certificate Parsing Exception.
class	CertificateRevokedException	An exception that indicates an X.509 certificate is revoked.
class	CertPath	An immutable sequence of certificates (a certification path).
protected static class	CertPath.CertPathRep	Alternate CertPath class for serialization.
class	CertPathBuilder	A class for building certification paths (also known as certificate chains).
class	CertPathBuilderException	An exception indicating one of a variety of problems encountered when building a certification path with a CertPathBuilder.
class	CertPathBuilderSpi	The Service Provider Interface (SPI) for the CertPathBuilder class.
class	CertPathValidator	A class for validating certification paths (also known as certificate chains).
class	CertPathValidatorException	An exception indicating one of a variety of problems encountered when validating a certification path.
class	CertPathValidatorSpi	The Service Provider Interface (SPI) for the CertPathValidator class.
class	CertStore	A class for retrieving Certificates and CRLs from a repository.
class	CertStoreException	An exception indicating one of a variety of problems retrieving certificates and CRLs from a CertStore.
class	CertStoreSpi	The Service Provider Interface (SPI) for the CertStore class.
class	CollectionCertStoreParameters	Parameters used as input for the Collection CertStore algorithm.
class	CRL	This class is an abstraction of certificate revocation lists (CRLs) that have different formats but important common uses.
class