Question

Q} In case of______ we can implement only required methods of any interface.

a) Interface
b) package
c) adapter classes
d) event classes

Answer 1

Answer:

Ans is A:Interface

All method in interface must be implemented

Answer 2

In which of the case we can implement only required methods of any interface:

Explanation:

• If you don't implement all the methods of the interface , then the class should be abstract, in such a case.
• In Java, if  interface contains default implementations for some methods, we don't have to implement them in classes that implement the interface.
• a) Interface is correct.