Mastering Java: The Ultimate Quiz for 'Thinking in Java'

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Prepare for your Java exam with our ultimate quiz based on 'Thinking in Java'. Engage with expertly crafted questions that enhance your learning process. Perfect for Java enthusiasts looking to solidify their knowledge!

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Which interfaces does NRobot implement?

Null
Robot
Both Null and Robot
Neither Null nor Robot

The correct answer is: Both Null and Robot

NRobot implements both the Null and Robot interfaces as it is coded to allow for null robots (robots that don't have any specific functionality) and regular robots that have designated functions. Options A and D are incorrect because they specify only one interface, whereas NRobot implements both interfaces. Option B is incorrect because it specifies only the Robot interface, while NRobot also implements the Null interface. Therefore, the correct answer is C.