Hi Otto,
Welcome to JavaRanch!
We ain't got many rules round these parts, but we do have our
naming policy, which requires that your display name not be obviously fictional. Please mosey on over to
here and change yours, pronto! Thanks, pardner.
Now, as to your question: yes, Eclipse and JBuilder have fine graphical debuggers. There's also jdb, a command-line debugger that comes with the JDK.