Here is a java code listing to read and understand basic syntactic structures in a java code.
It was built to be used from a uml tool frontend which was written again in java.
I will post the code for the uml tool frontend later.

• codeg - contains all classes used in the project. You can run javadoc to get the basic documentation (though incomplete) for the project.

• metharg.java - models arguments of methods in a java program.
• utl.java - contains basic utilities used through out the project.
• intrfrec.java - models interfaces in a java program.
• pkgrec.java - models packages in a java program.
• attrrec.java - models attributes of a class in a java program.
• javaproj.java - models a complete java program.
• methrec.java - models a method in a java program.
• clsrec.java - models a class in a java program.

• f9.java - small test program to test the uml backend