No need to double post, be patient. When someone can answer suitably, they'll respond to you.

Now, you need to create a game which implements some kind of AI using Java, correct? I think some additional information would be helpful in answering your question:
-Are there any specific requirements on what sort of AI is used, or do you just need a computer controlled player?
-Are there any other requirements as to the sort of game you make? (i.e. Does it need to be 2d, 3d, text-based for example?)
-Do you have any experience in making games before?
-How experienced are you with Java?

Since this is a school project and you've already said you aren't very experienced, I'd suggest keeping the game as simple as you can, but I'm not sure what the requirements for your assignment will be. For example, making a text-based game of Tic-Tac-Toe with a perfect AI which has varied moves along with a non-perfect AI would probably be a suitable task, but depending on your project requirements may not be good enough.

Give us a bit more information and we'll see what advice we can give you. [smile]