java util Queue 体系

public interface Queue extends Collection {
	boolean add(E e);
	boolean offer(E e);
	E remove();
	E poll();
	E element();
	E peek();
}

• jdk相关类
  java.util
  AbstractQueue
  ArrayDeque
  Collections
  Deque
  LinkedList
  PriorityQueue

• java.util.concurrent
  ArrayBlockingQueue
  BlockingDeque
  BlockingQueue
  ConcurrentLinkedDeque
  ConcurrentLinkedQueue
  DelayQueue
  LinkedBlockingDeque
  LinkedBlockingQueue
  LinkedTransferQueue
  PriorityBlockingQueue
  ScheduledThreadPoolExecutor
  SynchronousQueue
  TransferQueue