Java Virtual Machine (JVM)

All language compliers translate source code into machine code for a specific computer. Java complier also do the same things but Java compiler produce an intermediate code known as bytecode. This machine is called as Java Virtual Machine(JVM) and it is exists only inside the computer memory with java. It is simulated computer within computer and does all major functions of real computer.

The virtual machine code is not machine specific. The machine specific code is generated by the Java Interpreter by acting as an intermediary between the virtual machine and the real machine. The interpreter is different for different machine.

The java object framework acts as the intermediary between the user program and virtual machine which turns act as the intermediary between operatinf system and the java object framework.

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