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

Disable ads (and more) with a membership for a one time $2.99 payment

Mastering Java: The Ultimate Quiz for 'Thinking in Java'. Dive deep into Java with multiple-choice questions. Challenge yourself with quiz questions designed to test and improve your understanding of the 'Thinking in Java' book. Get ready for your exam!

Practice this question and more.

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.