哪位大哥救急啊！我有个Java小程序编不出来啊！

[badlucktang]

当我购买商品的时候，我会收到一个收据，上面有我所
购买的所有商品的名称和价格（价格中包括了税款）。
收据上还有所有商品的价格总和已经税款总和。商品的
零售价格包括基本价格和税。税的计算约进到最近的
0.05。

请设计一款打印收据的程序。

输入:
输入 1:
1本12.49的书
1张14.99的CD
1块0.85的巧克力

输入2:
1盒10.00的进口巧克力
1瓶47.50的进口香水

输入 3:
1瓶27.99的进口香水
1瓶18.99的香水
1瓶9.75的感冒药
1盒11.25的进口巧克力

输出：
输出 1:
1 书 : 12.49
1 CD: 16.49
1 巧克力: 0.85
税款: 1.50
总计: 29.83

输出 2:
1 进口巧克力: 10.50
1 进口香水: 54.65
税款: 7.65
总计: 65.15

输出 3:
1 进口香水: 32.19
1 香水: 20.89
1 感冒药: 9.75
1 进口巧克力: 11.85
税款: 6.70
总计: 74.68

[keyboardsun]

在csdn里面，很少有人会帮你做的。
你自己先做，遇到什么问题，再来问。

[closewbq]

马上下班了，给你写了个。你自己看看吧！

public class Commodity {
	
	private int commCount;
	private String commName;
	private double commPrice;
	private double commTax;
	/**
	 * @return the commCount
	 */
	public int getCommCount() {
		return commCount;
	}
	/**
	 * @return the commName
	 */
	public String getCommName() {
		return commName;
	}
	/**
	 * @return the commPrice
	 */
	public double getCommPrice() {
		return commPrice;
	}
	/**
	 * @return the commTax
	 */
	public double getCommTax() {
		return commTax;
	}
	/**
	 * @param commCount the commCount to set
	 */
	public void setCommCount(int commCount) {
		this.commCount = commCount;
	}
	/**
	 * @param commName the commName to set
	 */
	public void setCommName(String commName) {
		this.commName = commName;
	}
	/**
	 * @param commPrice the commPrice to set
	 */
	public void setCommPrice(double commPrice) {
		this.commPrice = commPrice;
	}
	/**
	 * @param commTax the commTax to set
	 */
	public void setCommTax(double commTax) {
		this.commTax = commTax;
	}
	

}

public class TestDemo {
	
	public static void main(String[] agrs)
	{
		List<Commodity> list=new ArrayList<Commodity>();
		Commodity comm=null;
		Scanner  scanner=new Scanner(System.in);
		boolean  isBuying=true;
		boolean showResult=false;
		String commName="";
		int commCount=0;
		double commPrice=0.0;
		 System.out.println("**********开始购买或者继续购买请输入ON，如果购买结束，请输入Exit********");
		while(isBuying)
		{
		  String isBegining=scanner.nextLine();
		  if(isBegining.toLowerCase().equals("on"))
		  {
		  showResult=true;
		  System.out.println("please input commodity name:");
		  commName=scanner.nextLine();
		  System.out.println("please input commodity count:");
		  commCount=scanner.nextInt();
		  System.out.println("please input commodity price:");
		  commPrice=scanner.nextDouble();
		  comm=new Commodity();
		  comm.setCommName(commName);
		  comm.setCommCount(commCount);
		  comm.setCommPrice(commPrice);
		  comm.setCommTax(commPrice*0.05);
		  list.add(comm);
		  }
		  if(isBegining.toLowerCase().equals("exit"))
		  {
			  scanner.close();
			  isBuying=false;
		  }
		}
		double sumPrice=0.0;
		if(showResult){
		for(int i=0;i<list.size();i++)
		{
			Commodity commEnd=(Commodity)list.get(i);
			 System.out.println("你购买的商品有：");
			 System.out.println("名称："+commEnd.getCommName()+"   "+"数量:"+commEnd.getCommCount()+"件"
					 +"   "+"单价:"+commEnd.getCommPrice()+"元"+"  "+"税:"+commEnd.getCommTax()+"元");
			 
			 sumPrice=+commEnd.getCommPrice();
		}
		System.out.println("您本次消费："+(sumPrice+sumPrice*0.05)+"元");
		System.out.println("商品消费总计："+sumPrice+"元"+"商品税总计："+sumPrice*0.05+"元");
		}
		else
		{
			System.out.println("您没有购买商品");
		}
	}

}

[ydr4345400]

写的好啊！

[guanjing123321123321]

顶一下

[叶涛网站推广优化]

[Quote=引用 2 楼 closewbq 的回复:]
马上下班了，给你写了个。你自己看看吧！
Java codepublicclass Commodity {privateint commCount;private String commName;privatedouble commPrice;privatedouble commTax;/**
*@return the commCount*/publicint getCommCount() {return commCount;
}/**
*@return the commName*/public String getCommName() {return commName;
}/**
*@return the commPrice*/publicdouble getCommPrice() {return commPrice;
}/**
*@return the commTax*/publicdouble getCommTax() {return commTax;
}/**
*@param commCount the commCount to set*/publicvoid setCommCount(int commCount) {this.commCount= commCount;
}/**
*@param commName the commName to set*/publicvoid setCommName(String commName) {this.commName= commName;
}/**
*@param commPrice the commPrice to set*/publicvoid setCommPrice(double commPrice) {this.commPrice= commPrice;
}/**
*@param commTax the commTax to set*/publicvoid setCommTax(double commTax) {this.commTax= commTax;
}


}publicclass TestDemo {publicstaticvoid main(String[] agrs)
{
List<Commodity> list=new ArrayList<Commodity>();
Commodity comm=null;
Scanner scanner=new Scanner(System.in);boolean isBuying=true;boolean showResult=false;
String commName="";int commCount=0;double commPrice=0.0;
System.out.println("**********开始购买或者继续购买请输入ON，如果购买结束，请输入Exit********");while(isBuying)
{
String isBegining=scanner.nextLine();if(isBegining.toLowerCase().equals("on"))
{
showResult=true;
System.out.println("please input commodity name:");
commName=scanner.nextLine();
System.out.println("please input commodity count:");
commCount=scanner.nextInt();
System.out.println("please input commodity price:");
commPrice=scanner.nextDouble();
comm=new Commodity();
comm.setCommName(commName);
comm.setCommCount(commCount);
comm.setCommPrice(commPrice);
comm.setCommTax(commPrice*0.05);
list.add(comm);
}if(isBegining.toLowerCase().equals("exit"))
{
scanner.close();
isBuying=false;
}
}double sumPrice=0.0;if(showResult){for(int i=0;i<list.size();i++)
{
Commodity commEnd=(Commodity)list.get(i);
System.out.println("你购买的商品有：");
System.out.println("名称："+commEnd.getCommName()+""+"数量:"+commEnd.getCommCount()+"件"+""+"单价:"+commEnd.getCommPrice()+"元"+""+"税:"+commEnd.getCommTax()+"元");

sumPrice=+commEnd.getCommPrice();
}
System.out.println("您本次消费："+(sumPrice+sumPrice*0.05)+"元");
System.out.println("商品消费总计："+sumPrice+"元"+"商品税总计："+sumPrice*0.05+"元");
}else
{
System.out.println("您没有购买商品");
}
}

}

[/Quote]
顶