Which of the following is used to make an abstract class?
Posted: Wed Jul 13, 2022 7:51 pm
a) By using virtual keyword in front of a class declaration
b) By using an abstract keyword in front of a class declaration
c) By declaring a virtual function in a class
d) By declaring a pure virtual function in a class
b) By using an abstract keyword in front of a class declaration
c) By declaring a virtual function in a class
d) By declaring a pure virtual function in a class