Question

我正在创建一个简单的佣金计算器，而人们可以输入无限量销售的最终销售价格;然后在最后它打印出佣金总额加上基本工资率（200美元）。

这是我的初始代码：

import java.util.Scanner;

public class AssignmentsModule2_Program2 {

    public static void main(String[] args) {

        Scanner input = new Scanner(System.in);

        // Intialization Phase
        double sold = 0;
        double soldCounter = 0;

        double baseRate = 200.00;
        double commissionRate = 0.09;

        System.out.print("Enter total of sold item or -1 if done: ");
        int value = input.nextInt();

        while (sold != -1)
        {
            sold = sold + value;
            soldCounter = soldCounter + 1;

            System.out.print("Enter price of sold item or -1 if done: ");
            value = input.nextInt();
        } 

        double totalCommission = sold * commissionRate + baseRate;
        System.out.printf("%nTotal pay for the week is: %d%n", sold);

    }

}

不幸的是，当我运行该程序时，会出现错误代码。

以下是错误代码：

Exception in thread "main" java.util.InputMismatchException
    at java.util.Scanner.throwFor(Scanner.java:864)
    at java.util.Scanner.next(Scanner.java:1485)
    at java.util.Scanner.nextInt(Scanner.java:2117)
    at java.util.Scanner.nextInt(Scanner.java:2076)
    at     assignmentsmodule2_program2.AssignmentsModule2_Program2.main(AssignmentsModule2_Program2.java:31)
Java Result: 1

有没有人可以提供帮助？

感谢。

Answer 1

你的程序期望一个整数作为输入。使用float或char作为输入时抛出异常。我会使用double变量：

import java.util.Scanner;

public class AssignmentsModule2_Program2 {

  public static void main(String[] args) {

    Scanner input = new Scanner(System.in);

    // Intialization Phase
    double sold = 0.0;
    int soldCounter = 0;

    double baseRate = 200.00;
    double commissionRate = 0.09;

    System.out.print("Enter total of sold item or -1 if done: ");
    double value = input.nextDouble();

    while (value > 0)
    {
        sold = sold + value;
        soldCounter = soldCounter + 1;

        System.out.print("Enter price of sold item or -1 if done: ");
        value = input.nextDouble();
    } 

    double totalCommission = sold * commissionRate + baseRate;
    System.out.printf("%nTotal pay for the week is: %f%n", sold);

  }

}

使用Java创建简单的佣金计算器

1 个答案: