Java embed video?

Is there anyway to watch a video from youtube or metacafe inside a Java program?

what format are youtube and metcafe videos in?

I think they are still embedded in flash so they would be .flv

I did find something called Java JMF. It does say that it supports streaming video. It looks like it will use whatever codecs you have available to play the video. It also says you can supply it with custom codecs. This seems exactly like what I need, but it also seems very complicated. Anyone have any experience with it? Am I on the right track?

I imagine that you want to stream direct from youtube and not save the video from youtube and then launch in a java program?