Java tutorial
import java.util.ArrayDeque; import java.util.Deque; import java.util.Iterator; public class Main { public static void main(String[] args) { ArrayDeque<Integer> deque = new ArrayDeque<Integer>(8); deque.add(3); deque.add(4); deque.add(25); deque.add(1); for (Iterator itr = deque.iterator(); itr.hasNext();) { System.out.println(itr.next()); } } }