ECE244H1 Chapter 20: ECE244 String Class

1. Can we declare base class constructor or destructor as virtual if yes then why we want to do?

Answer the following short questions. Your answer should be precise.

1. Can we declare base class constructor or destructor as virtual if yes then why we want to do?
2. How we can declare a class as abstract and why we need abstract classes?
3. Why we cannot able to create objects of abstract classes give reasonable justification of that.   

This question is related to Object orientated programming in c++

2. In a class that defines a new data type, you will not get a compile-time error if you do not define a constructor. (A) FALSE (B) TRUE