threadfromthread.java

Java面向对象编程(随书配套源代码) 阐述了面向对象编程的思想

package chapter10;
public class ThreadFromThread 
{
    public static void main(String args[])
    {
        new ChildThread();//定义新线程 
        try{
            for(int i=5;i>0;i--)
            {
                System.out.println("|-主线程: "+i);
                Thread.sleep(1000);
            }
        } 
        catch(InterruptedException e)
        {
            System.out.println("Main Thread interrupted.");
        }
        System.out.println("主线程退出.");
    }
}
//由Thread类派生出线程类ChildThread 
class ChildThread extends Thread
{
    //构造函数
    ChildThread()
    {
       super("ChildThread");
       System.out.println("子线程信息: "+this+"\n");
       start(); // 调用run()方法启动新线程 
   }
   //重载run()方法 
   public void run()
   {
       try
       {
           for(int i=5;i>0;i--)
           {
               System.out.println("|--子线程: "+i);
               Thread.sleep(300);
           }
       } 
       catch(InterruptedException e)
       {
           System.out.println("Child interrupted.");
       }
       System.out.println("子线程退出.");
   }
}