package com.p14;

public class Test {

	public static void main(String[] args) {
		//开卡
		BusCard card=new BusCard();
		//充值
		card.charge(2);
		//查询余额
		System.out.println("余额:"+card.queryBalance());
		
		//刷卡
		try {
			card.swipe(5);
			System.out.println("刷卡成功！您的余额:"+card.queryBalance());
		} catch (CardException e) {
			System.out.println(e.getMessage());
		}
	}

}