I believe there are some on this site if you look around, you could also google for "simple java exercises" or something similar. Read through all the threads here and try to do some of the things people have talked about. Think about some simple things on your own. Many programmers have probably done some sort of checking account type system at one point while learning. Think of something that interests you and go for it. [ September 29, 2005: Message edited by: Hentay Duke ]
keep an eye on this forum, and the beginners forum at sun.
subject lines that include "Urgent" or "Help", with a liberal dose of !!!, generally indicate a 'do my homework for me' post, often including the exerise (copy/paste). Some of these are quite interesting.