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.
Hi, I'm not too sure about this either but I think that the abstract class can include fully defined methods whereas an interface cannot. The interface just lists the method names and signatures that the subclasses must implement.