Q. How do we declare an abstract class? (Solved)
1. by providing at least one pure virtual method (function signature followed by ==0;) in a class
2. by declaring at least one method abstract using the keyword ‘abstract’ in a class
3. by declaring the class abstract with the keyword ‘abstract’
4. it is not possible to create abstract classes in c++
- a. by providing at least one pure virtual method (function signature followed by ==0;) in a class