Best online judge with good Java support? [closed]

Question

I'm wondering what's a good online judge for just practicing algorithms. I'm currently not very good at writing algorithms, so probably something easy (and least frustrating) would be good.

I've tried the UVA online judge, but it took me about 20 tries to get the first example question right; There was absolutely no documentation on how to read input, etc. I've read about Topcoder, but I'm not really looking to compete, merely to practice.

Answer 1

Take a better look at topcoder. Yes, they have competitions, but you can still easily just "play" by yourself. You are given a goal and a time limit and you choose your language, and then you code it. You can view the source code of the best coders to improve yourself.

I have used topcoder for awhile and have never been in any competition. Check it out.

You may also want to check out Project Euler. Not a judge, but there are mathematical problems and solutions available for many languages.