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.
I'd suggest that you first try a quick search on each of the three Java in General forums and the OO forum for this topic as it has been discussed here a few times already. Note that the search page link is at the top right of this page.