Java用LinkedList实现队列

import java.util.LinkedList;public class MyQueue {private LinkedList ll=new LinkedList();public void put(Object o){ll.addLast(o);}public Object get(){if(ll.isEmpty()){System.out.println("队列为空，不能出队列了");return null;}return ll.removeFirst();}public boolean empty(){return ll.isEmpty();}public static void main(String []args){MyQueue mq=new MyQueue();mq.put("one");mq.put("two");mq.put("three");System.out.println(mq.get());System.out.println(mq.get());System.out.println(mq.get());System.out.println(mq.empty());}}

输出结果为

onetwothreetrue