Mastering Java: The Ultimate Quiz for 'Thinking in Java' 2026 - Free Java Programming Practice Questions and Study Guide

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How does a HashSet store elements?

In a linked list

Using a hashing technique

A HashSet uses a hashing technique to store elements in a way that allows for efficient retrieval of data. The data is stored in an array-like structure called a hash table. Each element is assigned a unique location in the hash table based on its hash code. This allows for fast lookup and retrieval of data. Options A, C, and D are incorrect because HashSet does not use a linked list, insertion order, or ascending order to store elements.

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In insertion order

In ascending order