Java tutorial
import java.util.ArrayDeque; import java.util.Deque; public class Main { public static void main(String[] args) { ArrayDeque<Integer> deque = new ArrayDeque<Integer>(8); deque.add(25); deque.add(2); deque.add(1); deque.add(18); System.out.println(deque); // it will retrive element at first(head) position int retval = deque.element(); System.out.println("Retrieved Element is = " + retval); } }