Mastering Java 2025 – 400 Free Practice Questions to Pass the 'Thinking in Java' Exam

Question: 1 / 510

Why might one use a null object instead of directly using null?

To make code easier to debug

To avoid handling NullPointerExceptions and provide default behavior

One might use a null object instead of directly using null to avoid handling NullPointerExceptions and provide default behavior. If null is used, it can result in the application crashing if not handled properly. Using a null object can prevent this, as it provides a default behavior that can be used instead of throwing an exception. Option A is incorrect because using a null object does not necessarily make code easier to debug. Option C is incorrect because using a null object is not a required practice in Java programming. Option D is incorrect because using a null object does not necessarily improve application performance.

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Because it's a required practice in Java programming

To improve application performance by reducing null checks

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