Copy all elements in Java TreeSet to an Object Array

Create a TreeSet and add elements −

TreeSet<String> tSet = new TreeSet<String>(); tSet.add("TV"); tSet.add("Radio"); tSet.add("Internet");

Now, let us copy it to object array −

Object[] arr = tSet.toArray(); for (Object ob: arr) {    System.out.println(ob); }

The following is an example to copy all elements in TreeSet to an Object Array −

Example

 Live Demo

import java.util.*; public class Demo {    public static void main(String args[]){       TreeSet<String> tSet = new TreeSet<String>();       tSet.add("TV"); tSet.add("Radio"); tSet.add("Internet"); System.out.println("TreeSet elements = "+tSet); Object[] arr = tSet.toArray(); for (Object ob: arr) { System.out.println(ob); } } }

Output

TreeSet elements = [Internet, Radio, TV] Internet Radio TV