Java (programming Language) - Class Libraries

Class Libraries

• The Java Class Library are the compiled bytecodes of source code developed by the JRE implementor to support application development in Java. Examples of these libraries are:
  • The core libraries, which include:
    • Collection libraries that implement data structures such as lists, dictionaries, trees, sets, queues and double-ended queue, or stacks
    • XML Processing (Parsing, Transforming, Validating) libraries
    • Security
    • Internationalization and localization libraries
  • The integration libraries, which allow the application writer to communicate with external systems. These libraries include:
    • The Java Database Connectivity (JDBC) API for database access
    • Java Naming and Directory Interface (JNDI) for lookup and discovery
    • RMI and CORBA for distributed application development
    • JMX for managing and monitoring applications
  • User interface libraries, which include:
    • The (heavyweight, or native) Abstract Window Toolkit (AWT), which provides GUI components, the means for laying out those components and the means for handling events from those components
    • The (lightweight) Swing libraries, which are built on AWT but provide (non-native) implementations of the AWT widgetry
    • APIs for audio capture, processing, and playback
• A platform dependent implementation of the Java virtual machine that is the means by which the byte codes of the Java libraries and third party applications are executed
• Plugins, which enable applets to be run in Web browsers
• Java Web Start, which allows Java applications to be efficiently distributed to end-users across the Internet
• Licensing and documentation.