Question

Which feature is exhibited by the inbuilt classes?

(a) Code reusability

(b) Code efficiency

(c) Code readability

(d) Code reusability, efficiency and readability

I have been asked this question during a job interview.

My enquiry is from Class Use in portion Classes of Object Oriented Programming

Answer 1

Correct option is (d) Code reusability, efficiency and readability

To explain I would say: The code is reusable as the functions which are already written, can be used anytime required. The code becomes easier to read. Also, the code is efficient as there is no need to assign any external code.