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

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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!

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Which allows you to look up an object using another object?

Map
Set
List
Queue

The correct answer is: Map

A Map is an abstract data type that stores key-value pairs and allows you to retrieve a value using its corresponding key. This is useful when you need to quickly search for a specific value and know its corresponding key. Sets do not have key-value pairs and are mainly used for membership checking. Lists and Queues do not allow you to search for an object by using another object. Therefore, the most appropriate answer is Map.