java code to byte code–partone–reference

Understanding how Java code is compiled into byte code and executed on a Java Virtual Machine (JVM) is critical because it helps you understand what is happening as your program executes. This understanding not only ensures that language features make logical sense but also that it is possible to understand the Trade offs and side effects when making certain discussions.

This article explains how Java code is compiled into byte code and executed on the JVM. To understand the internal architecture in the JVM and different memory areas used during byte code execution see my prevIoUs article on .

This article is split into three parts,with each part being subdivided into sections. It is possible to read each section in isolation however the concepts will generally build up so it is easiest to read the sections. Each section will cover different Java code structures and explain how these are compiled and executed as byte code,as follows: