game engines

Hi, I used to play around writing some code in c of course with the help of some game engine.... anyway I like to try with java but have no idea where to start. I know about java 2D 3D but thats about it... however i wonder if there are any open source stuff out there that you like. also how fast would a 3D multiplayer game be in java? or would you have to mix it with c++ stuff for render?

any direction in this arae would be greate thanks

[463 byte] By [ajalali] at [2007-9-27 13:54:45]