Uses of Class

Packages that use Properties
Contains all of the classes for creating user interfaces and for painting graphics and images.
Provides classes that are fundamental to the design of the Java programming language.
Provides the classes and interfaces for the security framework.
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 the classes and interfaces for accessing naming services.
Defines the generic APIs for processing transformation instructions, and performing a transformation from source to result.