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package Class6;

public class Demo1 {

public static void main(String[] args)

{

TicketWindow tw1=new TicketWindow();

//TicketWindow tw2=new TicketWindow();

//TicketWindow tw3=new TicketWindow();

Thread t1=new Thread(tw1);

Thread t2=new Thread(tw1);

Thread t3=new Thread(tw1);

t1.start();

t2.start();

t3.start();

}

}

//售票窗口类

class TicketWindow implements Runnable

{

private int nums=2000;

public void run()

{

while(true)

{

//认为if else要保证其原子性[同步代码块]

synchronized(this)//this的标志位就是对象锁

{

//先判断是否还有票

if(nums>0)

{

//显示售票信息

//Thread.currentThread().getName()是当前线程的名字

System.out.println(Thread.currentThread().getName()+"在售出第 "+nums+"票");

// 出票的速度是一秒一张

try {

Thread.sleep(1000);

} catch (InterruptedException e) {

// TODO 自动生成的 catch 块

e.printStackTrace();

}

nums--;

}else{

//售票啊结束

break;

}

}

}

}

}