Hello.

Can someone point me to the a beginers tutorial? Some material where i can learn how to handle double buffering (or at least understand it), key and mouse listeners, thread handeling and states.

it will be much apreciated.

Excuse my bad english. It is not my native languaje... 

Lol, I really want to start creating Platformer Engines via 2D, than release them on here, always updating the releases with new content, things that can be done, always leave comments/examples commented out so people can get a idea of what's happening, and how to manipulate it to their own needs.

^ Off topic.

On topic: I could easily post 2-3 code snippets (classes), which could help you get a understanding of Key Listeners, Key Adapters, and Mouse Listeners, and how to react/update according to the actions performed.

There's always the Official Java Tutorials that cover everything about everything