EBK DATA STRUCTURES AND ALGORITHMS IN C
EBK DATA STRUCTURES AND ALGORITHMS IN C
4th Edition
ISBN: 9781285415017
Author: DROZDEK
Publisher: YUZU
Question
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Chapter 4, Problem 6E
Program Plan Intro

Abstract Base Class:

  • At least a single pure virtual function is present in an Abstract class. For sub classes interface is provided by Abstract class.
  • The instantiation of Abstract class is not possible whereas refrences and pointers could be created.
  • Abstract class contains a pure  virtual function  along with normal functions and variables
  • The purpose of Abstract class is to for up cast.  So that its interface could be used by derived class.
  • The implementation of all of pure virtual functions is necessary for all classes that inherit an Abstract class. Otherwise they would also become Abstract.

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