Java Program to sort a given array list

import java.util.*;
public class demo1
{
 public static void main(String[] args) 
 {
  List<String> list = new ArrayList<String>();
  list.add("C#");
  list.add("C++");
  list.add("Python");
  list.add("Perl");
  list.add("Ruby");
  list.add("Java");
  System.out.println("List before sort: "+list);
  Collections.sort(list);
  System.out.println("List after sort: "+list);    
 }
}