# 90 HashSet in Java | Java - The HashSet Class | HashSet | Java HashSet | HashSet Class |RedSysTech

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Topic: HashSet in Java

In this video, we are learning the below concepts:

1. What is a HashSet Class in Java?

2. Java HashSet Class

3. Java - The HashSet Class

4. HashSet Class - Duplicates allowed?

5. HashSet Class - Insertion order maintained?

6. What is HashSet?

7. What is LinkedHashSet?

8. What is SortedSet?

9. What is NavigableSet?

10. What is TreeSet?

11. How HashSet Class works internally?

12. When to choose HashSet Class?

13. HashSet Class coding

14. HashSet Class example


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