线程

class Demo extends Thread
{
    Demo(String name)
    {
        super(name);
    }
    public void run()
    {
        for(int i=0;i<50;i++)
        {
            System.out.println(Demo.currentThread().getName()+i);
        }
    }
}
public class ThreadDemo 
{
    public static void main(String[] args) 
    {
        Demo d=new Demo("One--");
        d.start();
        for(int i=0;i<50;i++)
        {    
            System.out.println("main run----"+i);
        }
    }
}