JVM is the main component of Java architecture and it is the part of the JRE (Java Runtime Enviroment) . It provides the cross platform functionality to java. This is a software process that converts the compiled Java byte code to machine code. Byte code is an intermediary language between Java source and the host system. Most programming language like C and Pascal converts the source code into machine code for one specific type of machine as the machine language vary from system to system . Mostly compiler produce code for a particular system but Java compiler produce code for a virtual machine .
JVM provides security to java. The programs written in Java or the source code translated by Java compiler into byte code and after that the JVM converts the byte code into machine code for the computer one wants to run. JVM is a part of Java Run Time Environment that is required by every operating system requires a different JRE .
The architecture of the JVM is as follows. Firstly we write the simple java program(source code) the java compiler converts the source code into the bytecode , after that JVM reads this bytecode and converts this into the machine code.
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