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.
Well, if it's anything like a JTextField, you use the addKeyListener method. You can add a KeyAdapter so that you only have to implement the method(s) you need or you can add a new KeyListener and implement all the methods.