Prority Queue (or) MIN Heap(Small to Big) - STRING sorting

[SharedMocha]

import java.util.*;
public class HelloWorld{

 public static void main(String []args){
 System.out.println("Hello World");
 PriorityQueue<String> temp = new PriorityQueue<String>();
 temp.add("sam");
 temp.add("lavada");
 temp.add("kusk");
 temp.add("3");
 
 while(!temp.isEmpty()){
 System.out.println(temp.poll());
 }
 
 
 }

}