Java多线程买票的实例

package com.lj.thread;

public class SellThread implements Runnable
{

	private int number;
	String s=new String();
	
	SellThread(){
		number=100;
		 
	}
	
	
	@Override
	public void run()
	{	
		while(number>0){
			synchronized (s)
			{
				if(number>0){
					System.out.println("第"+number+"人在"+Thread.currentThread().getName()+"买票");
					
					number--;
				}
			}
			
			try
			{
				Thread.sleep(1000);
			}
			catch (InterruptedException e)
			{
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		
		 
		
	}
	
	public static void main(String[] args)
	{
		SellThread st=new SellThread();
		Thread th1=new Thread(st);
		th1.start();
		Thread t2=new Thread(st);
		t2.start();
		
		Thread t3=new Thread(st);
		t3.start();
	}

}