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

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Dive into the depths of Java with our quiz based on "Thinking in Java, Fourth Edition" by Bruce Eckel. Test your knowledge, solidify concepts, and prepare for certification with challenging questions and insightful feedback.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

How can one get a null Robot object according to the text?

By instantiating NullRobot directly
Using newNullRobot method and passing the type
Calling a constructor of NullRobotProxyHandler
Through a specialized factory method not mentioned in the text

The correct answer is: Using newNullRobot method and passing the type

It is incorrect to instantiate NullRobot directly as there are no constructors mentioned in the text. Similarly, calling a constructor of NullRobotProxyHandler is incorrect as there is no mention of this class in the text. Option D is also incorrect as the text does not mention any factory methods. Option B is the correct answer as the text specifically mentions using the newNullRobot method and passing the type in order to get a null Robot object.