Inheritance and Polymorphism: Blackjack

Inheritance and Polymorphism: Blackjack ‌

Classes give you the perfect way to represent game entities that have attributes and behaviors. But game entities are often related. In this chapter, you’ll learn about inheritance and polymorphism, which give you ways to express those connections and can make defining and using classes even simpler and more intuitive. Specifically, you’ll learn to:

n Derive one class from another

n Use inherited data members and member functions

n Override base class member functions

n Define virtual functions to enable polymorphism

n Declare pure virtual functions to define abstract classes

Introducing Inheritance Introducing the Simple Boss Program Deriving from a Base Class Instantiating Objects from a Derived Class Using Inherited Members Controlling Access under Inheritance Introducing the Simple Boss 2.0 Program Using Access Modifiers with Class Members Using Access Modifiers When Deriving Classes Calling and Overriding Base Class Member Functions Introducing the Overriding Boss Program Calling Base Class Constructors Declaring Virtual Base Class Member Functions Overriding Virtual Base Class Member Functions Calling Base Class Member Functions Using Overloaded Assignment Operators and Copy Constructors in Derived Classes Introducing Polymorphism Introducing the Polymorphic Bad Guy Program Using Base Class Pointers to Derived Class Objects Defining Virtual Destructors Using Abstract Classes Introducing the Abstract Creature Program Declaring Pure Virtual Functions Deriving a Class from an Abstract Class Introducing the Blackjack Game Designing the Classes Planning the Game Logic The Card Class The Hand Class The GenericPlayer Class The Player Class The House Class The Deck Class The Game Class The main() Function Overloading the operator<<() Function Summary Questions and Answers Discussion Questions Exercises

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