2021-01-02 坚持坚持

import java.util.Scanner;
public class ComputeChange {
    public static void main(String[] args){
        Scanner input = new Scanner(System.in);

        System.out.println("Enter an amount in double, for example 11.56: ");

        double amount = input.nextDouble();

        int remainingAmount = (int)(amount * 100);
        int numberOfOneDollars = remainingAmount / 100;

        remainingAmount = remainingAmount % 100;

        int numberOfQuarters = remainingAmount / 25;
        remainingAmount = remainingAmount % 25;

        int numberOfDimes = remainingAmount / 10;
        remainingAmount = remainingAmount % 10;

        int numberOfNickels = remainingAmount / 5;
        remainingAmount = remainingAmount % 5;

        int numberOfPennies = remainingAmount;

        System.out.println("Your amount " + amount + " consists of ");
        System.out.println("   " + numberOfOneDollars + " dollars");
        System.out.println("   " + numberOfQuarters + " quaters");
        System.out.println("   " + numberOfDimes + " dimes");
        System.out.println("   " + numberOfNickels + " nickels");
        System.out.println("   " + numberOfPennies + " pennies");
    }
}

 

今天大概学了30分钟

如果是dollar。那么就是double类型，可以接受小数部分，小数部分代表美分直，通过double转int则会造成精度确实。所以需要直接用美分为单位进行输入，及接受int类型值，直接输入1003就可以了。输出正确结果

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