Object Oriented Programming20815 marksAbstract classes and concrete classes
Distinguish between concrete class and abstract class. Describe the roles of polymorphism.
Distinguish between concrete class and abstract class. Describe the roles of polymorphism. [5]
Feature Concrete class Abstract class --------- Definition Every member function it declares or inherits has a body It declares at least one pure virtual function, written virtual T f() = 0; Instantiation Objects can be created directly No object can be created, only pointers and references to it...