UGC NET CSE | June 2007 | Part 2 | Question: 15

Question

Runtime polymorphism can be achieved by:

• A. Accessing virtual function through the pointer of the base class
• B. Accessing virtual function through the object
• C. The derived class
• D. None of these

Answer 1

Option A

The main use of virtual function is to achieve Runtime Polymorphism. Runtime polymorphism can be achieved only through a pointer (or reference) of base class type. Also, a base class pointer can point to the objects of base class as well as to the objects of derived class.

https://www.tutorialspoint.com/virtual-functions-and-runtime-polymorphism-in-cplusplus#:~:text=The%20main%20use%20of%20virtual,the%20objects%20of%20derived%20class.