Java tutorial
import java.util.Iterator; import java.util.PriorityQueue; public class Main { public static void main(String args[]) { PriorityQueue<Integer> prq = new PriorityQueue<Integer>(); for (int i = 0; i < 10; i++) { prq.add(i); } // create iterator from the queue Iterator it = prq.iterator(); while (it.hasNext()) { System.out.println("Value: " + it.next()); } } }