package cn.itcast01;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

/**
*
* 3个窗口售100张票；
*
*/
public class Test4
{
public static void main(String[] args)
{
  Selltickets s1 = new Selltickets();
  Selltickets s2 = new Selltickets();
  Selltickets s3 = new Selltickets();
  s1.setName("窗口1");
  s2.setName("窗口2");
  s3.setName("窗口3");
  
  s1.start();
  s2.start();
  s3.start();
  
}
}
class Selltickets extends Thread
{
public static int tickets=100;

//创建锁对象
public static Lock lock=new ReentrantLock();

public void run()
{
  while(true)
  {
   lock.lock();
   if(tickets>0)
   {
    try
    {
     Thread.sleep(100);
    }
    catch (InterruptedException e)
    {
     
     e.printStackTrace();
    }
    System.out.println(getName()+"出售第"+tickets--+"张票");
   }
   
   lock.unlock();
  }
}

}

新手求币！

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