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how dose polymorphism promote extebsibility

C++ virtual function is a member function of a class, whose functionality can be over-ridden in its derived classes. The whole function body can be replaced with a new set of implementation in the derived class.Through this u can be able to promote extensibility in your program by using Virtual function. Very simple concept.

shahzad.dar@superior.edu.pk , shahzad.dar@gmail.com

Lecturer in Superior University ,Lahore

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Q: How does polymorphism promote extensibility?
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