Mastering Java: The Ultimate Quiz for 'Thinking in Java' 2025 - Free Java Programming Practice Questions and Study Guide

Question: 1 / 510

What is the purpose of using a proxy for a null Robot object?

To allow dynamic method invocation

To prevent NullPointerExceptions

To provide specific behavior for 'null' robot types

When a proxy is used for a null Robot object, this allows for specific behavior to be defined for 'null' robot types. This is a more efficient and organized approach compared to allowing the object to throw an exception or returning a null value. Option A is incorrect because the purpose of using a proxy in this scenario is not related to dynamic method invocation. Option B is incorrect because a proxy may still throw a NullPointerException if not properly implemented. Option D is incorrect because logging access to null objects is not the primary purpose of using a proxy for a null Robot object.

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To log access to null objects for debugging

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