example7_4.java

书中的例题

/* 构造一个Runnable接口类，模拟航班售票窗口 */
class Threadsale implements Runnable
{
	int tickets=100 ;
	public void run()
	{
      while(true)
		{
		  if(tickets>0)
			  System.out.println(Thread.currentThread().getName() + "售机票第" + tickets--  +"号");
		  else
			  System.exit(0);
		}
	}
} 
 /*再构造另一个类，在它的main()方法中创建并启动4个线程对象。 */
public class  Example7_4
{
	public static void main(String[] args) 
	{
		Threadsale t=new Threadsale();    //实例化线程
        Thread  t1=new Thread (t,"第1售票窗口");
        Thread  t2=new Thread (t,"第2售票窗口");
        Thread  t3=new Thread (t,"第3售票窗口");
        Thread  t4=new Thread (t,"第4售票窗口");
		t1.start();
		t2.start();
        t3.start();
		t4.start();
	}
}