简化题目

欢迎光临
品名 售价 数量 金额
----------------------------------
a    1.1* 1    
(001) = 1.1
b    2.2* 2
(002) = 4.4    
c    3.3* 3
(003) = 9.9    
-----------------------------------
3项商品 共计:6件
总计：15.4
凭此小票换取发票！

//Name Price * Number
//Id = Money
//--------------------
//--------------------
//goodsItem goodsNumber
//goodsMoney

分析：

• 品名：Name,String
• 商品编号：Id,String
• 售价：Price,double
• 数量：Number,int
• 金额：Money,double
• --------------------------
• _项商品：goodsItem,int
• 共计:_件：goodsNumber,int
• 总计：goodsMoney,double

public class SuperMarketTicket {
	public static void main(String[] args) {
		//定义
		String aName = "a";
		String aId = "(001)";
		double aPrice = 1.1;
		int aNumber = 1;
		double aMoney = aPrice * aNumber;
		
		String bName = "b";
		String bId = "(002)";
		double bPrice = 2.2;
		int bNumber = 2;
		double bMoney = bPrice * bNumber;
		
		String cName = "c";
		String cId = "(003)";
		double cPrice = 3.3;
		int cNumber = 3;
		double cMoney = cPrice * cNumber;
		
		//计算：_项商品
		int goodsItem = 3;
		//计算：共计：_件
		int goodsNumber = aNumber + bNumber + cNumber;
		//计算：总计：_
		double goodsMoney = aMoney + bMoney + cMoney;
		
		//打印
		//票头
		System.out.println("欢迎光临");
		System.out.println("品名   售价数量金额");
		System.out.println("------------------------------------------------");
		
		//票体
		System.out.println(aName +aId + "" +aPrice + "" + aNumber + "" +aMoney);
		System.out.println(bName +bId + "" +bPrice + "" + bNumber + "" +bMoney);
		System.out.println(cName +cId + "" +cPrice + "" + cNumber + "" +cMoney);
		
		//票脚
		System.out.println("" + goodsItem + "项商品共计:" + goodsNumber + "件";
		System.out.println("总计:" + goodsMoney);
		System.out.println("凭此小票换取发票！");
	}
}

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