Any suggestions for Java training?

Youtube ofc...

I was considering some Lynda training?

I'd have to say, i've never had to run code through a JRE scrapbook just to activate a forum account..   

I have recently been looking into Android and Java, eventually to use them to create a network-capable turn based card game.
I tried asking about this on Stack-Overflow, but I received a pretty broad answer.

I've seen a mention of Android game engines? Would that be the best place for me to start?
What are some tutorials for basic and/or networking applications I can run through before trying to make something complicated?

I have varied experience with Jass (warcraft 3), GML (game maker), Html, and Python, so I hope picking up Java won't be too difficult

Thanks JG.