用LinkedList实现的队列数据结构

/**队列：FIFO：first in first out.先进先出。堆栈：LIFO：last in first out. 后进后出.*//**队列容器*/class MyQueue<T>{private LinkedList<T> link;MyQueue(){link = new LinkedList<T>();}public void in(T t){link.addFirst(t);}public T out(){return link.removerLast();}public String toString(){return link.toString();}public boolean isNull(){return link.isEmpty();}}

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