Mastering Java 2025 – 400 Free Practice Questions to Pass the 'Thinking in Java' Exam

Question: 1 / 510

What does the Map interface allow you to do?

Maintain a list of unique elements

Map keys to values

A map is a data structure that allows for the mapping of unique keys to corresponding values, allowing for efficient access to and retrieval of data. Option A is incorrect because maintaining a list of unique elements is the purpose of the Set interface, not the Map interface. Option C is incorrect because the Map interface does not guarantee insertion order, unlike the List interface. Option D is also incorrect because the Map interface does not have any built-in mechanism for preventing duplicate keys, though it is possible to manually implement this functionality. Overall, the Map interface is specifically designed for the mapping of keys to values, making option B the correct answer.

Get further explanation with Examzify DeepDiveBeta

Store elements in insertion order

Ensure no duplicate keys are present

Next Question

Report this question

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy