DAY 14
WEEK 2
Polymorphism
On Day 12, “Implementing Inheritance,” you learned how to write virtual func-
tions in derived classes. This is the fundamental building block of polymor-
phism: the capability to bind specific, derived class objects to base class
pointers at runtime.
Today, you will learn- What multiple inheritance is and how to use it
- What virtual inheritance is and when to use it
- What abstract classes are and when to use them
- What pure virtual functions are
Problems with Single Inheritance........................................................................
Suppose you’ve been working with your animal classes for a while, and you’ve
divided the class hierarchy into Birds and Mammals. The Birdclass includes the
member function Fly(). The Mammalclass has been divided into a number of
types of Mammals, including Horse. The Horseclass includes the member func-
tions Whinny()and Gallop().