Chapter 8, Mastering Abstract Classes

1. a – d. Please see Assessments/Chapter08/Chp8-Q1.cpp in the GitHub repository.

e. Depending on your implementation, your Shape class may or may not be considered an interface class. If your implementation is an abstract class that contains no data members and only abstract methods (pure virtual functions), your Shape implementation is considered an interface class. If your Shape class, however, stores area as a data member once it has been calculated by the overridden Area() method in the derived classes, it is then just an abstract base class.