package notepad;

public class SynThreadDemo implements Runnable{
	
	private static int tickets;
	public void run()
	{
		 
		while(true)
		{
			sale();
		}
	}
	synchronized public void sale()
	{
		if(tickets>0)
		{
			try
			{
				Thread.sleep(10);
			}
			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();
		tickets=100;
		new Thread("1").start();
		new Thread("2").start();
		new Thread("3").start();
		new Thread("4").start();
	}

}