Uses of Class

Packages that use OutputStream 
Package Description
Provides classes for color spaces.
Contains classes related to developing beans -- components based on the JavaBeans™ architecture.
Provides for system input and output through data streams, serialization and the file system.
Provides classes that are fundamental to the design of the Java programming language.
Provides the classes for implementing networking applications.
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.
Defines interfaces and classes for the Java virtual machine to access files, file attributes, and file systems.
Service-provider classes for the java.nio.file package.
Provides classes and interfaces for supporting the server side of RMI.
Provides the classes and interfaces for the security framework.
Provides classes and interfaces for parsing and managing certificates, certificate revocation lists (CRLs), and certification paths.
Provides the API for accessing and processing data stored in a data source (usually a relational database) using the Java™ programming language.
Contains the collections framework, some internationalization support classes, a service loader, properties, random number generation, string parsing and scanning classes, base64 encoding and decoding, a bit array, and several miscellaneous utility classes.
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.
Provides the classes and interfaces of the Java™ 2 platform's core logging facilities.
This package allows applications to store and retrieve user and system preference and configuration data.
Provides classes for reading and writing the standard ZIP and GZIP file formats.
Provides the classes and interfaces for cryptographic operations.
The main package of the Java Image I/O API.
A package of the Java Image I/O API dealing with low-level I/O from files and streams.
Provides the principal classes and interfaces for the Java™ Print Service API.
Provides interfaces and classes for I/O, sequencing, and synthesis of MIDI (Musical Instrument Digital Interface) data.
Supplies interfaces for service providers to implement when offering new MIDI devices, MIDI file readers and writers, or sound bank readers.
Provides interfaces and classes for capture, processing, and playback of sampled audio data.
Supplies abstract classes for service providers to subclass when offering new audio devices, sound file readers and writers, or audio format converters.
Standard interfaces and base classes for JDBC RowSet implementations.
Provides utility classes to allow serializable mappings between SQL types and data types in the Java programming language.
Provides classes and interfaces that deal with editable and noneditable text components.
Provides a class (RTFEditorKit) for creating Rich-Text-Format text editors.
Provides interfaces for tools which can be invoked from a program, for example, compilers.
Classes for generating and validating XML digital signatures.
Defines interfaces and classes for the Streaming API for XML (StAX).
Provides stream and URI specific transformation classes.
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.
Provides interfaces for DOM Level 3 Load and Save.