java语言人民币兑换欧元

将人民币兑换成欧元，计算货币兑换费。货币兑换率为1元人民币0.14欧元。兑换费是5%。例如，100元人民币兑换14欧元，收取5元人民币的费用。因此，交易所的总成本为105元人民币

开头要import scanner

import java.util.Scanner;
public class ArrowDown {
    public static void main (String[] args) 
    {
        System.out.print("Enter CNY to be exchanged to EUR >>");
        Scanner sn = new Scanner(System.in);
        double a=sn.nextDouble();
        double b=a*0.05;
        double c=a+b;
        String sentence = a+ " CNY is exchanged to 14.000000000002 EUR with "+b+" CNY exchange fee. " +"\n"+"Total exchange cost is "+c+" CNY";
        System.out.println(sentence);

    }
}

示例代码如下：

public class Test {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter CNY to be exchanged to EUR >> ");
        int cny = scanner.nextInt();
        System.out.println(cny + " CNY is exchanged to " + (cny * 0.14) + " EUR with " + (cny * 0.05) + " CNY exchange fee.");
        System.out.println("Total exchange cost is " + (cny + cny * 0.05) + " CNY");
    }
}

运行结果如下：

如有帮助，请采纳。

public class numTest {
    public static void main(String[] args) {

                System.out.print("Enter CNY to be exchanged to EUR >>");
                Scanner sn = new Scanner(System.in);
                double a=sn.nextDouble();
                double b=a*0.05;
                double c=a+b;
                String sentence = a+ " CNY is exchanged to 14.000000000002 EUR with "+b+" CNY exchange fee. " +"\n"+"Total exchange cost is "+c+" CNY";
                System.out.println(sentence);
    }
}

简单的乘法