What is JAVA_HOME? How does the JVM find the javac path stored in JAVA_HOME?

Question

I would like to know what is JAVA_HOME. Where do I set the path of javac.exe and java.exe. It is in environment variables. When I compile a Java program from command prom

Answer 1

set environment variable

JAVA_HOME=C:\Program Files\Java\jdk1.6.0_24

classpath=C:\Program Files\Java\jdk1.6.0_24\lib\tools.jar

path=C:\Program Files\Java\jdk1.6.0_24\bin