Which of the following is the correct class header for a MouseClickListener class that wants to take advantage of the do-nothing methods provided by the MouseAdapter class?
A)class MouseClickListener implements MouseAdapter
B)class MouseClickListener extends MouseAdapter
C)interface MouseClickListener extends MouseAdapter
D)class MouseClickListener implements MouseListener

Question

Quizplus · Accepted Answer

To take advantage of the do-nothing methods provided by the MouseAdapter class, the MouseClickListener class should extend the MouseAdapter class. The other options are incorrect because: 
A) implements keyword is used for implementing interface, and MouseAdapter is a class, not an interface 
C) interfaces cannot extend classes 
D) implements MouseListener would require the MouseClickListener class to provide implementations for all the methods in the MouseListener interface, which is not necessary if we just want to use the do-nothing methods provided by MouseAdapter.

Which of the Following Is the Correct Class Header for a MouseClickListener