To extract these file, use any common zip utility. These files do not include platform-specific implementation code and cannot be used to rebuild the class libraries. This source code is provided for informational purposes only, to help developers learn and use the Java programming language. (In src.zip) Java programming language source files for all classes that make up the Java core API (that is, sources files for the java.*, javax.* and some org.* packages, but not for com.sun.* packages). (In the sample subdirectory) Samples, with source code, of programming for certain Java API’s.

(In the lib/ subdirectory) Additional class libraries and support files required by the development tools. (In the bin/ subdirectory) Tools and utilities that will help you develop, execute, debug, and document programs written in the JavaTM programming language. This tool also helps manage JAR files, javadoc – the documentation generator, which automatically generates documentation from source code comments, jdb – the debugger, jps – the process status tool, which displays process information for current Java processes, javap – the class file disassembler, and so many other components. JDK has as its primary components a collection of programming tools, including javac, jar, and the archiver, which packages related class libraries into a single JAR file. Java Development Kit 64-bit (also known as JDK) contains the software and tools that you need to compile, debug, and run applets and applications that you’ve written using the Java programming language.

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