What is true from the following?

  1. "X extends Y" is correct if and only if X is a class and Y is an interface

  2. "X extends Y" is correct if and only if X and Y are either both classes or both interfaces

  3. "X extends Y" is correct if and only if X is an interface and Y is a class

  4. None of these


Correct Option: B

Find more quizzes: