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.
In this example, when you speak of "Father", "Grandfather" is the superclass. It's the class that Father inherits from. In this example, any objects of type Father have both GFMethod and FMethod. When you speak of "Grandfather", "Father" is the subclass.