我正在制定计算所得税的模块化计划。在我的脑海里它是有道理的,但我的程序只运行一行代码然后停止...没有错误消息没有任何东西。我觉得它与我的CalculateTaxDue类中的while循环有关
该计划必须: a)从用户那里获得有效的输入(在一个班级中) b)计算到期税款(在另一类) c)显示用户输入的应纳税所得额,按固定税率计算的应纳税额,根据可变百分比计算的应缴税额和应付的总税额(在另一类别中)
这是我迄今为止的计划。我觉得它应该运行正常,但事实并非如此。
class Program
{
static void Main(string[] args)
{
// declare variables
double taxableIncome, incomeTaxDue, flatRate, variablePercentage;
// get user input
taxableIncome = GetTaxableInput.GetDouble("Please enter your total income: ");
// calculate tax due
incomeTaxDue = CalculateTaxDue.GetTaxableIncome(taxableIncome);
// display taxable income
DisplayTaxRate.DisplayTaxableIncome("Your total income is: ", taxableIncome);
// display flat rate
flatRate = CalculateTaxDue.GetFlatRate(taxableIncome);
DisplayTaxRate.DisplayFlatRate("Your tax rate is: ", flatRate);
// display variable percentage
variablePercentage = CalculateTaxDue.GetVariablePercentage(taxableIncome);
DisplayTaxRate.DisplayVariablePercentage("Your variable percentage is: ", variablePercentage);
// display total tax due
DisplayTaxRate.DisplayTotalTaxDue("Your total income tax due is: ", incomeTaxDue);
// keep console open
Console.ReadLine();
}
}
class GetTaxableInput
{
public static double GetDouble(string message)
{
// declare variable
double result;
// ask for input
Console.Write(message);
// capture and validate the user input
while (!double.TryParse(Console.ReadLine(), out result))
{
Console.WriteLine("Invalid input ");
Console.Write(message);
};
return result;
}
}
class CalculateTaxDue
{
public static double GetTaxableIncome(double taxableIncome)
{
double incomeTaxDue;
double flatRate;
double variablePercentage;
// calculate and return total income tax due.
while (!double.TryParse(Console.ReadLine(), out incomeTaxDue))
{
if (taxableIncome < 0)
{
flatRate = 0;
variablePercentage = 0;
incomeTaxDue = taxableIncome * variablePercentage + flatRate;
}
else if (taxableIncome < 49999)
{
variablePercentage = 0.05;
flatRate = 0;
incomeTaxDue = taxableIncome * variablePercentage + flatRate;
}
else if (taxableIncome < 99999)
{
variablePercentage = 0.07;
flatRate = 2500;
incomeTaxDue = taxableIncome * variablePercentage + flatRate;
}
else if (taxableIncome > 100000)
{
variablePercentage = 0.09;
flatRate = 6000;
incomeTaxDue = taxableIncome * variablePercentage + flatRate;
}
}
return incomeTaxDue;
}
// calculate and return the tax rate
public static double GetFlatRate(double taxableIncome)
{
double incomeTaxDue;
double flatRate;
double variablePercentage;
while (!double.TryParse(Console.ReadLine(), out flatRate))
{
if (taxableIncome < 0)
{
flatRate = 0;
variablePercentage = 0;
incomeTaxDue = taxableIncome * variablePercentage + flatRate;
}
else if (taxableIncome < 49999)
{
variablePercentage = 0.05;
flatRate = 0;
incomeTaxDue = taxableIncome * variablePercentage + flatRate;
}
else if (taxableIncome < 99999)
{
variablePercentage = 0.07;
flatRate = 2500;
incomeTaxDue = taxableIncome * variablePercentage + flatRate;
}
else if (taxableIncome > 100000)
{
variablePercentage = 0.09;
flatRate = 6000;
incomeTaxDue = taxableIncome * variablePercentage + flatRate;
}
}
return flatRate;
}
// calculate and return the variable percentage ( tax rate )
public static double GetVariablePercentage(double taxableIncome)
{
double incomeTaxDue;
double flatRate;
double variablePercentage;
while (!double.TryParse(Console.ReadLine(), out variablePercentage))
{
if (taxableIncome < 0)
{
flatRate = 0;
variablePercentage = 0;
incomeTaxDue = taxableIncome * variablePercentage + flatRate;
}
else if (taxableIncome < 49999)
{
variablePercentage = 0.05;
flatRate = 0;
incomeTaxDue = taxableIncome * variablePercentage + flatRate;
}
else if (taxableIncome < 99999)
{
variablePercentage = 0.07;
flatRate = 2500;
incomeTaxDue = taxableIncome * variablePercentage + flatRate;
}
else if (taxableIncome > 100000)
{
variablePercentage = 0.09;
flatRate = 6000;
incomeTaxDue = taxableIncome * variablePercentage + flatRate;
}
}
return variablePercentage;
}
}
class DisplayTaxRate
{
public static void DisplayTaxableIncome(string message, double numberValue)
{
Console.WriteLine("{0} {1:c}", message, numberValue);
}
public static void DisplayFlatRate(string message, double numberValue)
{
Console.WriteLine("{0} {1:c}", message, numberValue);
}
public static void DisplayVariablePercentage(string message, double numberValue)
{
Console.WriteLine("{0} {1:P}", message, numberValue);
}
public static void DisplayTotalTaxDue(string message, double numberValue)
{
Console.WriteLine("{0} {1:c}", message, numberValue);
}
}
就是这样。就像我之前说过的,我没有收到任何错误消息,所以我不知道从哪里开始。 谢谢!
答案 0 :(得分:0)
我明白了。由于某种原因,我有一个while循环来获取计算类中的输入:/感谢Chris Dunaway!现在就像一个魅力。