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!