Explain Which of the following is the correct way of implementing an interface A by class B?

Question

Which of the following is the correct way of implementing an interface A by class B? (a) class B extends A{} (b) class B implements A{} (c) class B imports A{} (d) None of the mentioned The question was posed to me by my school principal while I was bunking the class. The doubt is from Interfaces topic in portion Interfaces & Packages of Java Select the correct answer from above options

Answer 1

The correct answer is (b) class B implements A{} Easiest explanation: Concrete class implements an interface. They can be instantiated.