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C# 2012 for Programmers, Fifth Edition by Paul Deitel, Harvey M. Deitel, Abbey Deitel

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12. OOP: Polymorphism, Interfaces and Operator Overloading

Objectives

In this chapter you’ll:

Image Learn how polymorphism enables you to “program in the general” and make systems extensible.

Image Use overridden methods to effect polymorphism.

Image Create abstract classes and methods.

Image Determine an object’s type at execution time.

Create sealed methods and classes. ...

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