class Consumer extends Thread 
{ 
	int nTime; 
	String strConsumer; 
	int count;
	public Consumer(int nTime, String strConsumer){ 
		this.nTime = nTime; 
		this.strConsumer = strConsumer;
		count=0;
	} 
	public void run(){ 
		while(true){ 
			try{ 
				System.out.println("消費者姓名："+strConsumer+" ."); 
				Thread.sleep(nTime); 
			} catch(Exception e) { 
				e.printStackTrace(); 
			} 
			if(count++>3) break;
		} 
	} 
	static public void main(String args[]){ 
		Consumer aConsumer = new Consumer (1000, "aConsumer"); 
		aConsumer.start(); 
		Consumer bConsumer = new Consumer (2000, "bConsumer"); 
		bConsumer.start(); 
		Consumer cConsumer = new Consumer (3000, "cConsumer "); 
		cConsumer.start(); 
	} 
}