子线程循环十次，接着主线程循环100，接着又回到子线程循环10次，接着再回到主线程又循环100，如此循环50次，请写出程序

public class ThreadTest {
    /**
     * 子线程循环10次，接着主线程循环100，接着又回到子线程循环10次，接着再回到主线程又循环100，如此循环50次，请写出程序。
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        new ThreadTest().init();
    }
    public void init()
    {
        final Business business = new Business();
        new Thread(
                new Runnable()
                {
                    public void run() {
                        for(int i=0;i<50;i++)
                        {
                            business.SubThread(i);
                        }                       
                    }
                   
                }
       
        ).start();
       
        for(int i=0;i<50;i++)
        {
            business.MainThread(i);
        }       
    }
   
    private class Business
    {
        boolean bShouldSub = true;//这里相当于定义了控制该谁执行的一个信号灯
        public synchronized void MainThread(int i)
        {
            if(bShouldSub)
                try {
                    this.wait();
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }       
               
            for(int j=0;j<100;j++)
            {
                System.out.println(Thread.currentThread().getName() + ":i=" + i +",j=" + j);
            }
            bShouldSub = true;
            this.notify();
       
        }
       
       
        public synchronized void SubThread(int i)
        {
            if(!bShouldSub)
                try {
                    this.wait();
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }   
               
            for(int j=0;j<10;j++)
            {
                System.out.println(Thread.currentThread().getName() + ":i=" + i +",j=" + j);
            }
            bShouldSub = false;               
            this.notify();           
        }
    }
}