Question

我不知道如何将我输入的“希望的钱”转换为数字，然后将其转换为货币格式，您可以在下面的代码中看到它，它会问我我的希望钱，然后我输入数字100000例如，我希望它自己将其转换为货币格式

package com.codewitheli;

import java.text.NumberFormat;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);
        System.out.println("Hello matar, Please Enter your wish money");
        String grade = scanner.nextLine();
        System.out.println("Your name wish money is: " + grade);

Answer 1

使用可以使用类似的东西

double amount = scanner.nextDouble()

NumberFormat us     = NumberFormat.getCurrencyInstance(Locale.US);
NumberFormat china  = NumberFormat.getCurrencyInstance(Locale.CHINA);
NumberFormat france = NumberFormat.getCurrencyInstance(Locale.FRANCE);

System.out.println("US: "     + us.format(amount));
System.out.println("China: "  + china.format(amount));
System.out.println("France: " + france.format(amount));

完整程序：

import java.text.NumberFormat;
import java.util.Locale;
import java.util.Scanner;

class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter the amount: ");
        double amount = scanner.nextDouble();

        NumberFormat us = NumberFormat.getCurrencyInstance(Locale.US);
        NumberFormat china = NumberFormat.getCurrencyInstance(Locale.CHINA);
        NumberFormat france = NumberFormat.getCurrencyInstance(Locale.FRANCE);

        System.out.println("US: " + us.format(amount));
        System.out.println("China: " + china.format(amount));
        System.out.println("France: " + france.format(amount));
    }
}

样品运行：

Enter the amount: 200
US: $200.00
China: ￥200.00
France: 200,00 €

Answer 2

你的意思是这样吗？

String formatted = NumberFormat.getCurrencyInstance(Locale.US).format(1000000);
System.out.println(formatted); //Prints "$1,000,000.00"


    Scanner scanner = new Scanner(System.in);
    System.out.println("Hello matar, Please Enter your wish money");
    String grade = scanner.nextLine();
    System.out.println("Your name wish money is: " + grade);

要将其集成到代码中，需要将传入的String解析为int：

public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    System.out.println("Hello matar, Please Enter your wish money");
    int grade = scanner.nextInt();
    System.out.println("Your name wish money is: " + NumberFormat.getCurrencyInstance(Locale.US).format(grade));
}

如何将数字转换为金钱

2 个答案: