Java Program to create a reverse order of a given tree set

import java.util.*;
public class demo1 
{
 public static void main(String[] args)
 {
  TreeSet<String> tree_set = new TreeSet<String>();
  tree_set.add("C#");
  tree_set.add("C++");
  tree_set.add("Java");
  tree_set.add("HTML");
  tree_set.add("Perl");
  System.out.println("Original tree set: " + tree_set);
  
  Iterator i = tree_set.descendingIterator();
  System.out.println("Elements in Reverse Order:");
  while (i.hasNext()) 
  {
  System.out.println(i.next());
  }
 }
}