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.

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