It's not Java, but if you're looking for something to read, and you want to learn something in Java, then read this: http://designpatternsinruby.com/

Then, go back and figure out how to do the same things in Java.

You get the bang of learning Ruby, which is kinda fun, you get to learn OO design patterns which are very valuable, and you get the critical thinking of going from one language to another, and figuring out why they're different(or the same).

Actually, rather like so many "relativistic" types of things, we're all in space. We just happen to have this cool atmosphere thingy, and a really grabby big mass of dirt to fall down on.

Now, maybe what he's really broken is the amount of time spent at least x-many miles away from a planet of y mass or something. So, really, until he's the oldest man alive(space radiation extreme!), he's got nothing(beyond bone loss, and possibly being truly out of reach of a Jehosephat's Witness).