JBOX2D 是一款很好的JAVA 物理引擎。用于解决java 使用物理引擎的问题。-JBox2D is a close Java port of Erin Catto s excellent C++ Box2D physics engine. Check out the demos to see what it can do.This project has been led by dmurphy (toucansam in the forums) since mid 2010. It was

java平台上的物理引擎，是学习物理引擎很好的源码-Java platform of the physics engine, is the study the physics engine very good the source code

利用java swing开发的Box2d物理引擎编辑器，可用来做诸如愤怒的小鸟等游戏的地图。-Use java swing develop Box2d physics engine editor, can be used for such angry birds games such maps.