saleticket3.java

这是清华大学编写的JAVA教材中所有题目的源代码！

class SaleTicket implements Runnable
{
	private int tickets=100;
	
	public void run() 
	{
		while(true)
		{
			sale();		
		}
	}
	
	public synchronized void sale()
	{				
		if(tickets>0)
		{
			try
			{
				Thread.sleep(10);
			}
			catch(Exception e)
			{
				System.out.println(e.getMessage());
			}
				
			Thread t=Thread.currentThread();
			System.out.println(t.getName()+"卖出车票："+tickets);
			tickets--;
		}
	}
}

class Demo
{
	public static void main(String args[]) 
	{
		SaleTicket t=new SaleTicket();
		
		Thread t1=new Thread(t);
		Thread t2=new Thread(t);
		Thread t3=new Thread(t);

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