Core Java · interview question
Which of the following scenarios could lead to a NullPointerException when using Integer objects?
Multiple choiceHardchapter-7-curatedpremiumcore-javawrapper-types-and-autoboxing
Integer num = null;
int value = num;Answer and explanation
Correct answer
C. Unboxing a null Integer to an int
Why
Unboxing a null Integer reference to a primitive int leads to a NullPointerException because it attempts to dereference a null object.
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