What Is syntax of abstract class in C++?

To be an abstract class, it must have a presence of at least one virtual class . We can use pointers and references to abstract class types. If we don’t override the virtual function in the derived class, then the derived class also becomes an abstract class. We can create constructors of an abstract class.2 Eyl 2021

Example of Abstract class that has an abstract method In this example, Bike is an abstract class that contains only one abstract method run. Its implementation is provided by the Honda class.

You create an abstract class by declaring at least one pure virtual member function. That’s a virtual function declared by using the pure specifier ( = 0 ) syntax. Classes derived from the abstract class must implement the pure virtual function or they, too, are abstract classes.