Starting Out With Visual C# (5th Edition)
Starting Out With Visual C# (5th Edition)
5th Edition
ISBN: 9780135183519
Author: Tony Gaddis
Publisher: PEARSON
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Chapter 11.3, Problem 11.12CP

Explanation of Solution

Abstract class:

Abstract class is a class which acts as a base class for derived class that may contain one or more abstract methods and there is no need to instantiate, but it requires the derived class to provide implementations for abstract methods.

  • The keyword “abstract” is used to create an abstract class.
  • A class is declared as abstract when the methods inside the class are declared as abstract without implementation.
  • An abstract class is a set of abstract members and non-abstract members.
  • The purpose of abstract class is to provide the common features to its derived class and need not be instantiated. That is, programmer not be able to create an object for abstract class.
  • It can only contain the declaration part in abstract class.
  • It contains the abstract properties and abstract methods.
    • An abstract property is a property which is declared in base class but it can be overridden in a derived class. That is, abstract property should be present in base class before using it in derived class.
    • Use the keyword “abstract” before the property type of property header.
    • The programmer must use the keyword “override” before the property type in derived class...

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Starting Out With Visual C# (5th Edition)

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