package day;public class Mytd implements Runnable {         //通过实现Runnable接口来实现多线程    private int ticketcount = 100;    Object ob = new Object();                  //加锁    private int m = 100;    public Mytd(int t) {                       //有参构造方法        this.ticketcount = t;        this.m = t;    }    public Mytd() {                           //无参构造方法    }    public void sellticket() {                //卖票方法       synchronized (ob) {                    //同步线程锁            if (ticketcount > 0) {                ticketcount--;                int num = this.m - ticketcount;                System.out.println(Thread.currentThread().getName()                        + "卖出第" + num + "张票，还剩" + ticketcount + "张票");            } else {                System.out.println("票已经卖完");                return;            }       }    }    @Override    public void run() {        while (ticketcount > 0) {            sellticket();            try {                Thread.sleep(2000);            } catch (InterruptedException e) {                e.printStackTrace();            }        }    }}

package day;public class Work {    public static void main(String[] args) {        Mytd run = new Mytd(100);        Thread th1 = new Thread(run,"东风路售票点");           //开启五个线程        Thread th2 = new Thread(run,"吉祥路售票点");        Thread th3 = new Thread(run,"从动路售票点");        Thread th4 = new Thread(run,"文明路售票点");        Thread th5 = new Thread(run,"好听路售票点");        th1.start();        th2.start();        th3.start();        th4.start();        th5.start();    }}