package deque; import exceptions.EmptyDequeException; /** * Created with xgiovio.macbookair. * User: xgiovio * Date: 17/03/14 * Time: 16:26 */ public class NodeDeque implements Deque { @Override public int size() { return 0; } @Override public boolean isEmpty() { return false; } @Override public E getFirst() throws EmptyDequeException { return null; } @Override public E getLast() throws EmptyDequeException { return null; } @Override public void addFirst(E element) { } @Override public void addLast(E element) { } @Override public E removeFirst() throws EmptyDequeException { return null; } @Override public E removeLast() throws EmptyDequeException { return null; } }