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public class TicketOffice implements Runnable {
private int count = 100; // 记录剩余票数
private int no = 0; // 记录买到第几张票
private boolean flag = false; //记录是否售完
private CountDownLatch latch=new CountDownLatch(2);
public void run() {
while (true) {
sale();
if(count<=0){
break;
}
}
}
// 卖票
public boolean sale() {
if (flag==true) {
return false;
}
// 第一步:设置买到第几张票和剩余票数
no++;
count--;
try {
Thread.sleep(5);
// 模拟网络延时
} catch (InterruptedException e) {
e.printStackTrace();
}
// 第二步:显示信息
System.out.println(Thread.currentThread().getName() + "抢到第" + no + "张票," + "剩余" + count + "张票!");
if(count<=0){
flag=true;
return false;
}
if(Thread.currentThread().getName().equals("票贩子")){
latch.await(); //非同步的情况下。如何将票贩子这一线程停止??????
}
return true;
}
}
public class Test {
public static void main(String[] args) {
TicketOffice ticket =new TicketOffice();
new Thread(ticket,"张三").start();
new Thread(ticket,"李四").start();
new Thread(ticket,"票贩子").start();
}
}
public void run() {
if(Thread.currentThread().getName().equals("票贩子")){
return;
}
while (true) {
sale();
if(count<=0){
break;
}
}
}