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!

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What is the role of the List interface?

To map keys to values
To maintain elements in a specific sequence
To ensure no duplicate elements
To add or remove elements at both ends

The correct answer is: To maintain elements in a specific sequence

The List interface is used to maintain elements in a specific sequence. This means that the order in which the elements are added to the list is preserved and can be retrieved in the same order. This is not the role of mapping keys to values (option A) as that is the role of the Map interface. Ensuring no duplicate elements (option C) is not the primary role of the List interface, although some implementations may enforce this rule. The List interface does not specifically allow for adding or removing elements at both ends (option D), although certain implementations like LinkedList do support this feature. Therefore, option B is the best answer as it accurately describes the main function of the List interface.