class ChildThread implements Runnable
{
    public static boolean stop=false;
    static int count = 0;
    public ChildThread()
    {
    }

    public void run()
    {
        while(!stop)
        {
            // 查找
            search();
            count++;
        }
    }
    // 查找
    private void search()
    {
        System.out.println("子线程-查找");
    }
}
public class xingfuweiyu implements Runnable
{
    static ChildThread c=null;
    public static void main(String[] args) 
    {
        // 调用主线程
        xingfuweiyu m=new xingfuweiyu();
        new Thread(m).start();
    }
    public void run()
    {
        // 做些事
        System.out.println("主线程");
        
        // 调用子线程
        c=new ChildThread();
        new Thread(c).start();
        try
        {
            Thread.sleep(3000);
        }
        catch (Exception e)
        {
        }
        ChildThread.stop = true;
        System.out.println("子线程-停止了,执行"+c.count+"次");

    }
}

------解决方案--------------------
Java code
setDaemon(true)

------解决方案--------------------
探讨


Java code
setDaemon(true)

+
Java code
while(true)


------解决方案--------------------
楼上各位也给出，正解
试下吧
主线程退出子线程跟着退出，
setDaemon(true)；//就是这句话就 可以了  守护线程，又叫精灵线程吧