Question

If there is a derived class in a program, how many classes must be in that program?

(a) 1

(b) 2

(c) 3

(d) 4

I have been asked this question by my school teacher while I was bunking the class.

The doubt is from Derived Class in portion Classes of Object Oriented Programming

Answer 1

Right choice is (b) 2

The explanation is: If there is a derived class in a program, there must be at least 2 classes in that program. One is a base class and another derived class. Hence at least 2 classes must be there.