示例#1
0
  public T getFront() {
    if (!myDeque.isEmpty()) return myDeque.getFront();

    return null;
  }
示例#2
0
 public boolean isEmpty() {
   return myDeque.isEmpty();
 }
示例#3
0
  public T dequeue() {
    if (!myDeque.isEmpty()) return myDeque.removeFront();

    return null;
  }