how java implement machine independence??????

how java implement machine independence??????

bytecodes.

can u please explain,how bytecodes help in platform independence.

As previously noted, the Java platform is an exception to the general rule that an operating system is a software platform. The Java language provides a virtual machine, or a “virtual CPU” which runs all of the code that is written for the language. This enables the same executable binary to run on all systems which support the Java software, through the Java Virtual Machine. Java executables do not run directly on the operating system; that is, neither Windows nor Linux execute Java programs directly.

For more references:

http://en.wikipedia.org/wiki/Bytecode

http://en.wikipedia.org/wiki/Java_platform#Edition