AI代码解释 PriorityQueue<String>queueWithComparator=newPriorityQueue<>(newComparator<String>(){@Overridepublicintcompare(String o1,String o2){returno2.compareTo(o1);// 降序排列}});queueWithComparator.offer("apple");queueWithComparator.offer("banana");System.out.println(queueWithComparator.poll());/...
publicclassSynchronousQueueDemo{publicstaticvoidmain(String[]args){BlockingQueue<String>queue=newSynchronousQueue<String>();newThread("生产者"){publicvoidrun(){while(true){String data=UUID.randomUUID().toString();try{System.out.println("生产者 put: "+data);queue.put(data);Thread.sleep(5000);//...
1.Queue 是最简单的队列 2.Queue未实现阻塞功能,并发的添加会导致一些元素添加失败. 一个简单的Demo privatevoiddemo(){ Queue<String> stringQueue =newLinkedList<>(); stringQueue.offer("A1");//offer实现添加元素,但是如果Queue已经满了,会返回布尔值falsestringQueue.offer("A2"); stringQueue.offer("A3"...
queue = new PriorityQueue<String>(new ArrayList<String>()); //创建一个PriorityQueue队列,初始化指定大小(不能少于1)和比较器的优先队列 queue = new PriorityQueue<String>(30, new Comparator<String>(){ @Override public int compare(String o1, String o2) { return o1.compareTo(o2); } }); 1. ...
importjava.util.PriorityQueue;publicclassQueueTest{publicstaticvoidmain(String[] args){ PriorityQueue<Person> queue =newPriorityQueue<>((o1, o2) -> -o1.getName().compareTo(o2.getName())); queue.offer(newPerson("刘德华",18)); queue.offer(newPerson("张学友",17)); ...
public class BlockingQueueTest { public static void main(String[] args) { Scanner in = new Scanner(System.in); System.out.print("Enter base directory (e.g. /usr/local/jdk5.0/src): "); String directory = in.nextLine(); System.out.print("Enter keyword (e.g. volatile): "); ...
();}@OverridepublicintcompareTo(Delayed o){Work work=(Work)o;long diff=this.time-work.time;if(diff<=0){// 改成>=会造成问题return-1;}else{return1;}}}publicstaticvoidmain(String[]args){BlockingQueue<Work>queue3=newDelayQueue<>();try{Work work=newWork("用户一",25,TimeUnit.SECONDS);...
客户端代码，演示如何使用PriorityBlockingQueue publicclassPriorityBlockingQueueExample{ publicstaticvoidmain(String[] args)throws InterruptedException { // 创建一个优先级阻塞队列 PriorityBlockingQueue<Task> queue = new PriorityBlockingQueue<>(); // 向队列中添加任务 queue.put(new Task(3, "L...
*/StringclientId="GID_XXXXX@@@XXXXX";/** * 云消息队列 MQTT 版消息的一级Topic,需要在控制台创建才能使用。 * 如果使用了没有创建或者没有被授权的Topic会导致鉴权失败,服务端会断开客 结果验证 完成消息收发后,您可在云消息队列 MQTT 版控制台查询轨迹以验证消息是否发送并接收成功。详细信息,请参见消息...
示例1: 演示包含整数列表的 PriorityBlockingQueue 上的 toString()方法。// Java Program Demonstrate toString() // method of PriorityBlockingQueue import java.util.concurrent.PriorityBlockingQueue; import java.util.*; public class GFG { public static void main(String[] args) throws InterruptedException ...