10. Object-Oriented Programming: Inheritance and Polymorphism

Say not you know another entirely, till you have divided an inheritance with him.

—Johann Kasper Lavater

This method is to define as the number of a class the class of all classes similar to the given class.

—Bertr and Russell

A philosopher of imposing stature doesn’t think in a vacuum. Even his most abstract ideas are, to some extent, conditioned by what is or is not known in the time when he lives.

—Alfred North Whitehead


In this chapter you’ll learn:

• What inheritance is and how it promotes software reuse.

• To use keyword Inherits to create a derived class that inherits attributes and behaviors from a base class.

• To use access modifier Protected to give derived-class ...

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