Java Programming Language: HashSets

Hi everyone, welcome back. In this tutorial, we will be going over HashSets in Java. HashSets can be used to store a collection of data similar to an ArrayList, but the key difference is that each of the elements in a HashSet are unique. In other words, there are no duplicate values in a HashSet, making it a great option when wanting to avoid duplicate values. With this introduction out of the way, let’s get into it.