Java Physics Engine? -

i have been playing around game development in java, slick 2d game engine. have idea simple game, need physics engine.

i have been searching internet looking well-documented, free physics engine. have never used physics engine looking relatively simple, lot of examples , documentation.

box2d pretty standard 2d physics library games out there. there's port java here quite easy use:

http://www.jbox2d.org/