Java synchronization method of handling security thread implement Runnable

/ ** 
* Use thread synchronization methods to solve the security problem implement Runnable 
* 
* 
* Summary of the synchronization methods: 
* 1. The synchronization method still involves synchronizing the monitor, but we do not need to explicitly declare. 
* 2. A non-static method of synchronization is synchronization monitor: the this 
* static method of synchronization is synchronization monitor: this class itself 
* 
* / 


class Window3 the implements the Runnable { 

    Private int Ticket = 100; 

    @Override 
    public void RUN () { 
        the while (to true) { 

            Show (); 
        } 
    } 

    Private the synchronized void Show () {// synchronization monitor: the this 
        // the synchronized (the this) { 

            IF (Ticket> 0) { 

                the try { 
                    the Thread.sleep (100); 
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }

                System.out.println(Thread.currentThread().getName() + ":卖票，票号为：" + ticket);

                ticket--;
            }
        //}
    }
}


public class WindowTest3 {
    public static void main(String[] args) {
        Window3 w = new Window3();

        Thread t1 = new Thread(w);
        Thread t2 = new Thread(w);
        Thread t3 = new Thread(w);

        t1.setName("窗口1");
        t2.setName("窗口2");
        t3.setName("窗口3");

        t1.start();
        t2.start();
        t3.start();
    }

}