public class KTV implements Runnable{private DelayQueue<KTVConsumer> queue = new DelayQueue<>();public void begin(String name,String boxNum,int money){KTVConsumer man = new KTVConsumer(name,boxNum,20l*money+System.currentTimeMillis());System.out.println(man.getName()+" 等人交了"+money+"元钱，进入"+man.getBoxNum()+"号包厢,开始K歌...");this.queue.add(man);}public void end(KTVConsumer man){System.out.println(man.getName()+" 等人所在的"+man.getBoxNum()+"号包厢,时间到...");}@Overridepublic void run() {// TODO Auto-generated method stubwhile(true){try {KTVConsumer man = queue.take();end(man);} catch (InterruptedException e) {// TODO Auto-generated catch block
                e.printStackTrace();}}}public static void main(String args[]){try{System.out.println("KTV正常营业");System.out.println("================================");KTV  ktv = new KTV();Thread sing = new Thread(ktv);sing.start();new Thread(new Runnable() {@Overridepublic void run() {ktv.begin("张三", "111", 500);}}).start();new Thread(new Runnable() {@Overridepublic void run() {ktv.begin("李四", "666", 200);}}).start();Thread.sleep(2000);new Thread(new Runnable() {@Overridepublic void run() {ktv.begin("王五", "888", 100);System.out.println("================================");}}).start();}catch(Exception ex){}}
}
public class KTVConsumer implements Delayed{private String name;//截止时间private long endTime;//包厢号private String boxNum;public KTVConsumer(String name,String boxNum,long endTime){this.name=name;this.boxNum=boxNum;this.endTime=endTime;}public String getName(){return this.name;}public String getBoxNum(){return this.boxNum;}/*** 用来判断是否到了截止时间*/@Overridepublic long getDelay(TimeUnit unit) {// TODO Auto-generated method stubreturn unit.convert(endTime - System.currentTimeMillis(),  TimeUnit.MILLISECONDS);}/*** 相互比较排序用*/@Overridepublic int compareTo(Delayed o) {// TODO Auto-generated method stubif(o == null || ! (o instanceof KTVConsumer)) return 1;if(o == this) return 0;KTVConsumer s = (KTVConsumer)o;return endTime - s.endTime > 0 ? 1 :(endTime - s.endTime == 0 ? 0 : -1);}
}

KTV正常营业
================================
张三 等人交了500元钱，进入111号包厢,开始K歌...
李四 等人交了200元钱，进入666号包厢,开始K歌...
王五 等人交了100元钱，进入888号包厢,开始K歌...
================================
李四 等人所在的666号包厢,时间到...
王五 等人所在的888号包厢,时间到...
张三 等人所在的111号包厢,时间到...