Is java good to start learning gaming or how about my game?

Right now I just want to be able to create like an old school ascii rpg or some sort of simple tile rpg game. The main purpose is to flush out an RPG system that I have created and to see it within a computer game.

Is Java the best thing for me on this or is there something better? I have had alot of Java lately and am getting a decent grasp on it, but have some knowledge in C# (very basic) as well.

Can you guys help me?