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.
Language detection is notoriously difficult, but searching for "language detection java" finds several promising leads. Not sure how well those work if the text in question includes words in multiple languages, though.