Sams Teach Yourself Java in 24 Hours, Eighth Edition

HOUR 12Making the Most of Existing Objects

This Hour’s To-Do List:

Design superclasses and subclasses.

Form an inheritance hierarchy.

Override methods.

Java objects are ideally suited for childbearing. When you create an object—a set of attributes and behavior—you have designed something that’s ready to pass these qualities on to offspring. These child objects take on a lot of the same attributes and behavior of the parent. They also can do some ...