This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
You can use a MouseListener if you're interested in responding to mouse events. Usually you don't want that on a JButton, because "pressing" a button is more complicated than just clicking on it. For instance, you can activate it using the keyboard.