Today we begin to see the power of object oriented programming. Inheritance is the second major “tenet” of OO, allowing a developer to create specialized versions of a class. In our example, we take our Automobile example and create a specialized “child” class called Truck, which has all the features of Automobile, but extends it to include truck-specific features as well. Bob explains how to create a derived class, or child class, or rather, how to inherit from a base class, and takes a first-look at why inheritance is so important.
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