What is a Virtual Function?

How is inheritance achieved in C++ programming? What is a real-world example?

What is the difference between a struct and a class in C++?

What is a friend function?

why cannot we have virtual constructors?

why are virtual destructors used?

what is the purpose of making a function virtual?

what are abstract classes and why are they used?

Why are destructors needed in C++

What are delegates?

what are interfaces and what is the purpose.

What is a hash table. When do we use it.