example7_3.java

书中的例题

/* 构造一个Thread子类，模拟航班售票窗口 */
class Threadsale extends Thread
{
	int tickets=100 ;
	public void run()
	{
      while(true)
		{
		  if(tickets>0)
			  System.out.println(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_3
{
	public static void main(String[] args) 
	{
		Threadsale t1=new Threadsale();
        Threadsale t2=new Threadsale();
        Threadsale t3=new Threadsale();
        Threadsale t4=new Threadsale();
		t1.start();
		t2.start();
        t3.start();
		t4.start();
	}
}