Question

以下是我的作业详情：

编写一个Java程序，可用于计算每小时付费员工的周薪。该程序最初接受员工的身份，工作小时数和每小时工资率。一个员工可能会额外工作发生这种情况时，必须增加额外的小时数添加到原始金额，并重新计算工资。该程序必须单独输出排除员工的身份证号码，工作小时数，小时工资率和工资每个员工。此外，该计划还必须输出由支付的总金额公司

这是我到目前为止所拥有的

包工资单;

public class Payroll 
    {

    private static double TotalPayout;  
    private double Hours;
    private double Hourly_Rate;
    private String EmployeeId;
    public static double Salary;
    private double increaseHours = 10;

public Payroll (String getEmployeeId, double getHours, double 
getHourly_Rate)
    {
    EmployeeId = getEmployeeId;
    Hours = getHours;
    Hourly_Rate = getHourly_Rate;
    Salary = Hours * Hourly_Rate;

    TotalPayout = TotalPayout + Salary;
    }

public static double getTotalPayout()
    {
    return TotalPayout;
    }

public String getEmployeeId ()
    {
    return EmployeeId;
    }
public double getHours ()
    {
    return Hours;
    }
public void increaseHours (double x)
    {
    Hours = increaseHours + Hours;
    }
public double getHourly_Rate()
    {
    return Hourly_Rate;
    }
public double calculateSalary()
    {
    Salary = Hours * Hourly_Rate; 
    return Salary;
    }
    }   


package payroll;


import java.util.Date;//Used for creating a Date object
import java.text.DateFormat;//Used for specifying the format of the date
import java.text.NumberFormat;//Used for specifying the type of currency


public class TestPayroll 
{

public static void main (String [] arg)
{
    //Set up the formatters
    Date d = new Date();
    DateFormat df = DateFormat.getDateInstance();
    NumberFormat nf = NumberFormat.getCurrencyInstance();


    System.out.println("ABC Company");
    System.out.println ("\nPayroll For Week Ending " + df.format (d));
    System.out.println("--------------------------------------");

    //Define employee 1

    Payroll employee1 = new Payroll ("444-4444", 30, 25);
    employee1.calculateSalary();
    displaySalary (employee1, nf);

    //Define employee 2

    Payroll employee2 = new Payroll ("555-55555", 20, 50);
    employee2.calculateSalary();
    displaySalary(employee2, nf);

    System.out.println("\tIncrease " + employee1.getEmployeeId() + " by 10 
    hours");
    employee1.increaseHours(10); // 10 hours increase
    System.out.println("\tEmployee # ...... " + employee1.getEmployeeId ());
    System.out.println("\tHours Worked:.... " + employee1.getHours() + " 
    hours");
    System.out.println("\tHourly Rate:..... " + nf.format(employee1.getHourly_Rate()) + "/hour");
    System.out.println("\tYour Salary is .. " + nf.format(employee1.Salary));
    System.out.println("\t------------------------------");

    System.out.println("Total Payout Amount..... " + nf.format(Payroll.getTotalPayout()));
    System.out.println("-------------End of Report------------");
}
public static void displaySalary (Payroll e, NumberFormat nf)
{
    System.out.println("\tEmployee # ...... " + e.getEmployeeId ());
    System.out.println("\tHours Worked .... " + e.getHours() + " hours");
    System.out.println("\tHourly Rate ..... " + nf.format(e.getHourly_Rate()) + "/hour");
    System.out.println("\tYour Salary is .. " + nf.format(e.calculateSalary()));
    System.out.println("\t------------------------------\n");

}
}

Answer 1

您正在调用calculateSalary()来更新总数，但之后您正在调用increaseHours()，因此increaseHours()还需要能够更新总数的代码。

我建议不要将TotalPayout计算放在构造函数中。为它创建一个单独的方法（就像你对calculateSalary所做的那样），然后你可以在需要的时候调用该方法。

Answer 2

问题在于这种方法。

public void increaseHours (double x)
{
    Hours = increaseHours + Hours;
}

首先，您使用了错误的字段（increaseHours）而不是x。所以请删除这一行：

private double increaseHours = 10;

现在更新你的方法：

public void increaseHours (double increaseHours)
{
    Hours = increaseHours + Hours;
    TotalPayout += increaseHours * Hourly_Rate;
}

现在这将解决您的问题，但我强烈建议使用static TotalPayout字段 - 这将要求您稍微重新设计。

另外，还有一些风格指针。使用camel case以变量/字段的小写字母开头。例如totalPayout代替TotalPayout。等

欢迎来到S.O.和java世界，并进一步好运。

Answer 3

当你在Payroll类中增加工资时，你不会更新totalPayout变量。

public void increaseHours(double x) {
    hours = x + hours;
    totalPayout += x * hourly_Rate;
}

我建议你检查你的代码，不要使用静态变量和方法来汇总所有Payroll对象（它是一个对象，而不是工资单的实用程序类），你有一些未使用的变量，正如Luud所写，属性应该是小写，等等。

计算周薪 - 总值不正确

3 个答案: