This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
Are you looking for anything in particular? People could probably give you more useful information that way. In any case, I recommend Sun's resources - they have tutorials and the like. And of course the JavaRanch code barn.