Java Class file structure

Java class file structure

Java class files contains the java class representation in bytecode, it has lots of fields but there are only a few you should care about.

1. The first thing is accessFlags, this defines the visibility of a class to other classes.

2. Constant Pool is a pool of constants appear in the class such as String, Class name, function call name, method refs, field refs, etc that are used for references.

http://en.wikipedia.org/wiki/Java_class_file

http://docs.oracle.com/javase/specs/jvms/se5.0/html/ClassFile.doc.html