HashSet Problems
Challenge your understanding of Java HashSets! This section dives into practical problems that test your ability to leverage the unique properties of HashSets. Solve these problems and solidify your grasp of this essential Java collection!
21. Initializing HashSet in Java
22. How to Sort HashSet in Java.
Input: HashSet: [Geeks, For, ForGeeks, w3wiki] Output: [For, ForGeeks, Geeks, w3wiki]
23. Convert Array to HashSet in Java.
Input : Array: [1, 2, 3, 4, 5, 6] Output: Set: [1, 2, 3, 4, 5, 6]
24. How to Print HashSet Elements in Java?
Input: Set: { 5 , 2 , 3 , 6 , null }; Output: null 2 3 5 6 Explanation: Elements of Set are not stored in the order they are inserted.
Java Collection Exercise
The Java Collection framework is a fundamental part of the Java programming language, It covers a major part of Java and acts as a prerequisite for many Advanced Java Topics. However, programmers often find it difficult to find a platform to Practice Java Online.
Take a look at our Java Collection Exercise that contains Java Collection Practice Problems to practice and to develop your Java Programming skills. Our Java Collection Practice Exercise will cover all the topics from Basic to Advanced, from ArrayList to Priority Queue. So, let’s dive in and sharpen our Java Collection skills together!
Table of Content
- Basic Program
- ArrayList Problems
- LinkedList Problems
- HashMap Problems
- HashSet Problems
- Stack Problems
- Queue Problems
- Priority Queue Problems