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!

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!

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How can you create a class object if its constructor is private?

  1. By inheriting the class

  2. By creating an object in a subclass

  3. By calling a public static method of the class meant for object creation

  4. You cannot create an object if the constructor is private

The correct answer is: By calling a public static method of the class meant for object creation

Creating a class object requires calling the constructor of the class. However, if the constructor is set to private, it cannot be called outside of the class. Therefore, options A and B are incorrect as they involve inheriting or subclassing the class, both of which still require calling the constructor. Option D is also incorrect as it provides a general statement without explaining why the constructor being private is significant. Option C is the correct answer as it suggests using a public static method of the class specifically designed for object creation, bypassing the private constructor restriction.