package deque;

import exceptions.EmptyDequeException;

/**
 * Created with xgiovio.macbookair.
 * User: xgiovio
 * Date: 17/03/14
 * Time: 16:21
 */
//Copyright (c) 2003 Brown University, Providence, RI
//Additional modifications and methods by xgiovio
public interface Deque<E> {

    int size();
    boolean isEmpty();
    E getFirst() throws EmptyDequeException;
    E getLast() throws EmptyDequeException;
    void addFirst (E element );
    void addLast (E element);
    E removeFirst() throws EmptyDequeException;
    E removeLast() throws EmptyDequeException;

}