Sending a message to a variable before the corresponding object has been instantiated causes a(n) ____ exception.
A) no such method
B) syntax
C) desk checking
D) null pointer

Question

Quizplus · Accepted Answer

A null pointer exception occurs when attempting to use a null object reference in the program. Sending a message to a variable before the corresponding object has been instantiated can lead to a null pointer exception.

Sending a Message to a Variable Before the Corresponding Object