package notepad;

public class SynThreadDemo implements Runnable{
	
	private int tickets;
	public void run()
	{
		 tickets=100;
		while(true)
		{
			sale();
		}
	}
	synchronized public void sale()
	{
		if(tickets>100)
		{
			try
			{
				Thread.sleep(1000);
			}
			catch(InterruptedException e)
			{
				System.out.println(e.getMessage());
			}
			System.out.println(Thread.currentThread().getName()+"正在賣票:"+tickets--);
		}
	}
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		SynThreadDemo t=new SynThreadDemo();
		new Thread(t).start();
		new Thread(t).start();
		new Thread(t).start();
		new Thread(t).start();
	}

}