Question

When is the downcasting used?

(a) To separate inherited class from base class

(b) To write a more complex code

(c) To compare two objects

(d) To disable one class in inheritance

I have been asked this question during a job interview.

I'm obligated to ask this question of Downcasting in section Default Arguments vs Overloading, Upcasting and Downcasting of Object Oriented Programming

Answer 1

Right choice is (c) To compare two objects

Easiest explanation - The downcasting can be used whenever there is a need to compare one object to another. Equals() function can be used to compare whether the objects were of same age. We can use getClass() function too.