There are several ways to convert ArrayList to HashSet. In this guide, we will discuss the following ways with examples: Passing ArrayList to constructor of… [Read More]
Convert Comma Separated String to HashSet in Java
In this guide, we will discuss, how to convert a comma separated string to HashSet in Java. We will be using the String split() method… [Read More]
Java – How to Sort a HashSet?
As we know HashSet doesn’t sort elements, in fact it displays them in random order. While dealing with HashSet we may come across a situation… [Read More]
Difference between HashSet and HashMap
In this article we are gonna discuss the differences between HashSet and HashMap classes. HashSet vs HashMap Differences: HashSet HashMap HashSet class implements the Set… [Read More]
Difference between HashSet and TreeSet
In this article we are gonna discuss the differences between HashSet and TreeSet. HashSet vs TreeSet 1) HashSet gives better performance (faster) than TreeSet for… [Read More]
How to convert a HashSet to a TreeSet
Description Program to convert a HashSet to a TreeSet Program Here is the complete code for HashSet to TreeSet conversion. We have a HashSet of… [Read More]
Converting a HashSet to an Array
Here is the program for converting a HashSet to an array. Program import java.util.HashSet; class ConvertHashSettoArray{ public static void main(String[] args) { // Create a… [Read More]
Convert HashSet to a List/ArrayList
In this tutorial we will be learning how to convert a HashSet to a List (ArrayList). Program Here we have a HashSet of String elements… [Read More]
Delete all the elements from HashSet
Here we are gonna see how to remove all the elements of HashSet in one go. We can do so by calling clear() method of… [Read More]
How to Iterate over a Set/HashSet
There are following two ways to iterate through HashSet: 1) Using Iterator 2) Without using Iterator Example 1: Using Iterator import java.util.HashSet; import java.util.Iterator; class… [Read More]
HashSet in Java With Examples
This class implements the Set interface, backed by a hash table (actually a HashMap instance). It does not guarantee the iteration order of the set…. [Read More]