How the Java Virtual Machine (JVM) Works : Complete Tutorial

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Introduction

In high-level programming languages such as C and C++, we write a program in a human-readable format, and a program called a compiler translates it to a binary format called executable code that the computer can understand and execute. The executable code depends upon the computer machine that we use to execute our program; it is machine dependent. In Java, this process of writing to executing a program is very similar, but with one important difference that allows us to write Java programs that are machine independent.
Using an interpreter, all Java programs are compiled to an intermediate level called byte code. We can run the compiled byte code on any computer with the Java runtime environment installed on it. The runtime environment consists of a virtual machine and its supporting code.  more...