Iterate through elements of HashSet in Java

Create a HashSet and add elements to it −

Set<Integer> hs = new HashSet<Integer>(); hs.add(20); hs.add(39); hs.add(67); hs.add(79); hs.add(81); hs.add(87);

Try the below given code to iterate through the elements −

Iterator i = hs.iterator(); while (i.hasNext()) System.out.println(i.next());

To iterate through the elements of HashSet, try the following code −

Example

 Live Demo

import java.util.*; public class Demo {    public static void main(String args[]) {       Set<Integer> hs = new HashSet<Integer>();       hs.add(20);       hs.add(39);       hs.add(67);       hs.add(79);       hs.add(81);       hs.add(87);       hs.add(88);       System.out.println("Elements = "+hs);       Iterator i = hs.iterator();       while (i.hasNext())       System.out.println(i.next());    } }

Output

Elements = [81, 67, 20, 39, 87, 88, 79] 81 67 20 39 87 88 79