I want to know how the JAVAC and JAVA command works internally. And also the JVM and JDK architecture to understand the java compilation and execution process. Can anybody help me out .
Well time to study generic compiler theory then. Its a fun fun world of abstract syntax trees, lexical analysis, etc. etc. Your question is not Java programming related in any case and certainly not something to pose in a forum - perhaps you can find a good book on compiler theory. Its very complex material, I warn you.