Question

我正在编写一个非常简单的Java程序，但在运行时提取错误的信息。我知道它很小，但需要一套新的眼睛。请看一下，并提前感谢您。

我到处搜寻，这是我的最后一步。

package example;

import java.util.Scanner;

public class CustomersChange {

public static void main(String[] args) {
    // Create a Scanner
    Scanner input = new Scanner(System.in);

    final double MONEY = 100;

    // Receive the amount
    System.out.print("Enter the amount of your purchase in whole dollars, for example 96. "
            + "You have $100 to spend: ");
    double amount = input.nextDouble();

    int changeLeft = (int)(amount * 100);

    // Find the number of twenties left
    int numberOfTwenties = changeLeft / 2000;
    changeLeft = changeLeft % 2000;

    // Find the number of tens left
    int numberOfTens = changeLeft / 1000;
    changeLeft = changeLeft % 1000;

    // Find the number of fives left
    int numberOfFives = changeLeft / 500;
    changeLeft = changeLeft % 500;

    // Find the number of ones in the left
    int numberOfDollars = changeLeft / 100;
    changeLeft = changeLeft % 100;

    // Display results
    System.out.println("Your change is " + (MONEY - amount) + " dollars.");
    System.out.println("Your change of " + (MONEY - amount) + " dollars has:");     
    System.out.println("    " + numberOfTwenties + " twenties ");
    System.out.println("    " + numberOfTens + " tens");
    System.out.println("    " + numberOfFives + " fives");
    System.out.println("    " + numberOfDollars + " dollars");

  }

}

Answer 1

更改 int changeLeft = (int)(amount * 100);

要 int changeLeft = (int)(MONEY - amount)*100;

Java - 我忽略了一些东西，需要帮助。我在这里想念的是什么

1 个答案: