Re: Who can tell me how this program runs?

Hello Everybody:

Here is a program written to learn the multithread character of java!
class NewThread4 extends Thread{
        NewThread4(String name){
                super(name);
                }
        public void run(){
                for(int count = 10,row = 0; row<10 ; row++){
                        for(int i = 0; i< count ; i++)
                                System.out.print('*');
                        System.out.println();
                                }
                System.out.println(currentThread().getName() + " is over");
                        }
                }
class ThreadDemo4{
        public static void main(String[] args){
                NewThread4 thd = new NewThread4("new Thread");
                thd.start();
                for(int i =0 ; i<10; i++){
                        System.out.println(Thread.currentThread().getName()+ " is running");
                        }
                System.out.println(Thread.currentThread().getName() + " is over!");
                }
        }

The output is out of my anticipation!
I don't know how it works?

Any reply will be greatly appreciated!