usethread.java

我在学习JAVA的讲义

public class UseThread
{   public static void main(String args[ ])
    {   myThread th1=new myThread("Thread I");
        myThread th2=new myThread("Thread II");
        th1.start( );
        th2.start( );
    }
} 
class myThread extends Thread
{   public myThread(String str)
    {   super(str);
    }
    public void run( )
    {   for(int I=0;I<3;I++)
        {   System.out.println(getName( )+"正在运行!");
            try
            {   sleep((int)(Math.random( )*1000));
            }
            catch(InterruptedException e) {    }
        }
        System.out.println(getName( )+"已经结束!");
    }
}