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

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

Want to excel in Java? Test your knowledge with our ultimate quiz based on 'Thinking in Java'. Engage with multiple-choice questions and in-depth explanations. Boost your understanding and prepare for your exam with confidence.

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.

What is true about Maps in relation to the Collection interface?

Maps are a type of Collection
Maps cannot use Collection interfaces
Maps use Collection to store elements
Maps directly extend Collection

The correct answer is: Maps use Collection to store elements

Maps in Java are a specialized type of Collection that store key-value pairs. While they do implement the Collection interface, they do so indirectly through another interface called Map, rather than directly. Therefore, they are not a type of Collection, but they do use Collection methods to store and manipulate their elements. Option A is incorrect because while maps are related to the Collection interface, they are not a type of Collection. Option B is not accurate because Maps do in fact use Collection interfaces. Option D is incorrect because it directly states that Maps extend Collection, which is not true.