Question

A pure virtual function is a function without its implementation in a base class.
e.g. virtual void f1() = 0;
A class containing a a pure virtual function is termed as an Abstract class. It is not possible to
create objects of an abstract class. A child class of an abstract class should implement the
pure virtual function declared in the parent class, otherwise, the child class also mes
abstract class.
Hayocom​

Answer 1

Explanation:

Sorry I dont know please give me some time to answer it