我正在编写一个小程序，根据员工类型和工作小时数（加班与非加班）计算税额。我将包含我的代码的完整副本。
import java.util.Scanner;
public class Payroll
{
Scanner input = new Scanner(System.in);
private int empType;
private double contractorId;
private double empPayRate;
private double empHours;
private double empOtHours;
private double empOtPay;
private double fedTax;
private double stateTax;
private double empGrossPay;
private double empNetPay;
private double empFedTax;
private double empStateTax;
private double empTotalTax;
private double empRegPay;
public int empTypeCalc()
//calculate employee type
{
System.out.printf("What type of employee is this?%nEnter 1 for regular employee and 2 for contractors, or 3 to quit: ");
int empType = input.nextInt();
if (empType == 1)
{
System.out.printf("Input employee's pay rate:%n");
empPayRate = input.nextDouble();
System.out.printf("Input employee's hours worked:%n");
empHours = input.nextDouble();
grossPayCalc(empPayRate, empHours);
}
else if (empType == 2)
{
System.out.printf("Input contractor's pay rate:%n");
empPayRate = input.nextDouble();
System.out.printf("Input contractors's hours worked:%n");
empHours = input.nextDouble();
System.out.printf("Input contractors's ID number:%n");
contractorId = input.nextInt();
grossPayCalc(empPayRate, empHours, contractorId);
}
else if (empType == 3)
{
System.out.printf("Ending program. Have a nice day.%n");
}
else
{
System.out.printf("Invalid employee type entered please retry.%n");
empTypeCalc();
}
return empType;
}
public double grossPayCalc(double empPayRate, double empHours)
//calculate regular employee pay
{
if (empHours <= 40)
{
empGrossPay = empPayRate * empHours;
taxCalc(empHours, empPayRate, empGrossPay);
}
else
{
otPayCalc(empHours, empPayRate, empGrossPay);
}
return empPayRate;
}
public double otPayCalc(double empHours, double empPayRate, double empGrossPay)
//calculate Overtime pay for regular employees
{
if (empHours <= 65)
{
empOtHours = empHours - 40;
empRegPay = 40 * empPayRate;
empOtPay = empOtHours * empPayRate * 1.5;
empGrossPay = empOtPay + empRegPay;
otTaxCalc(empOtPay, empOtHours, empRegPay, empGrossPay, empHours, empPayRate);
}
else if (empHours > 65)
{
System.out.println("Employee May not work more than 65 Hours.%n");
empTypeCalc();
}
return empOtHours;
}
public double grossPayCalc(double empPayRate, double empHours, double contractorId)
//calculate contractor pay
{
if (empHours <= 50)
{
empGrossPay = empPayRate * empHours;
System.out.printf("Contractor's gross pay is $%.2f.%n%n", empGrossPay);
empTypeCalc();
}
else
{
System.out.printf("Contractor may not work more than 50 hours per week. Please try again.%n%n");
empTypeCalc();
}
return empPayRate;
}
public double otTaxCalc(double empOtPay, double mpOtHours, double empRegPay, double empGrossPay, double empHours, double empPayRate)
//calc tax for regular employees
{
System.out.printf("Please enter Federal Tax Rate. (e.g. 7.5 would be 7.5%)%n");
fedTax = input.nextDouble();
System.out.printf("Please enter State Tax Rate. (e.g. 7.5 would be 7.5%)%n");
stateTax = input.nextDouble();
empFedTax = (empGrossPay / 100) * fedTax;
empStateTax = (empGrossPay / 100) * stateTax;
empTotalTax = empStateTax + empFedTax;
empNetPay = empGrossPay - empTotalTax;
System.out.printf("Employee's Federal tax ammount is $%.2f.%n", empFedTax);
System.out.printf("Employee's State tax ammount is $%.2f.%n", empStateTax);
System.out.printf("Employee's total tax ammount is $%.2f.%n", empTotalTax);
System.out.printf("Employee's Federal Tax ammount is $%.2f.%n", empNetPay);
empTypeCalc();
return empFedTax;
}
public double taxCalc(double empHours, double empPayRate, double empGrossPay)
{
System.out.printf("Please enter Federal Tax Rate. (e.g. 7.5 would be 7.5%)%n");
fedTax = input.nextDouble();
System.out.printf("Please enter State Tax Rate. (e.g. 7.5 would be 7.5%)%n");
stateTax = input.nextDouble();
empFedTax = (empGrossPay / 100) * fedTax;
empStateTax = (empGrossPay / 100) * stateTax;
empTotalTax = empStateTax + empFedTax;
empNetPay = empGrossPay - empTotalTax;
System.out.printf("Employee's Federal tax ammount is $%.2f.%n", empFedTax);
System.out.printf("Employee's State tax ammount is $%.2f.%n", empStateTax);
System.out.printf("Employee's total tax ammount is $%.2f.%n", empTotalTax);
System.out.printf("Employee's Federal Tax ammount is $%.2f.%n", empNetPay);
empTypeCalc();
return empFedTax;
}
}
我的第一个功能是你输入了什么类型的员工（承包商或常规）然后询问一些基本信息（empPayRate和empHours）传递给我的grossPayCalc的部分，正常员工似乎有错误。这是传递给grossPayCalc的代码。
if (empType == 1)
{
System.out.printf("Input employee's pay rate:%n");
empPayRate = input.nextDouble();
System.out.printf("Input employee's hours worked:%n");
empHours = input.nextDouble();
grossPayCalc(empPayRate, empHours);
}
这应该传递给
public double grossPayCalc(double empPayRate, double empHours)
//calculate regular employee pay
{
if (empHours <= 40)
{
empGrossPay = empPayRate * empHours;
taxCalc(empHours, empPayRate, empGrossPay);
}
else
{
otPayCalc(empHours, empPayRate, empGrossPay);
}
return empPayRate;
}
之后我收到错误。
What type of employee is this?
Enter 1 for regular employee and 2 for contractors, or 3 to quit: 1
Input employee's pay rate:
50
Input employee's hours worked:
40
Exception in thread "main" java.util.UnknownFormatConversionException: Conversio
n = ')'
at java.util.Formatter.checkText(Unknown Source)
at java.util.Formatter.parse(Unknown Source)
at java.util.Formatter.format(Unknown Source)
at java.io.PrintStream.format(Unknown Source)
at java.io.PrintStream.printf(Unknown Source)
at Payroll.taxCalc(Payroll.java:146)
at Payroll.grossPayCalc(Payroll.java:72)
at Payroll.empTypeCalc(Payroll.java:36)
at PayrollTest.main(PayrollTest.java:6)
我不确定导致此错误的原因。从方法重载传递方法/这是一个错误吗？我很想知道导致这个错误的原因，以及如何防止它在将来发生。
答案 0 :(得分：0)
问题似乎是由方法System.out.printf("Please enter Federal Tax Rate. (e.g. 7.5 would be 7.5%)%n");中的taxCalc引起的。
您可能希望打印7.5%，但百分号将被解释为格式说明符。
试试...would be 7.5%%)...
答案 1 :(得分：0)
问题在于此方法taxCalc。
尝试添加%符号以逃避%符号。
所以，只需替换这一行：
System.out.printf("Please enter Federal Tax Rate. (e.g. 7.5 would be 7.5%)%n");
带
System.out.printf("Please enter Federal Tax Rate. (e.g. 7.5 would be 7.5%%)%n");
然后为其他类似的行做同样的事情。
答案 2 :(得分：0)
在taxCalc方法中，您有一个百分号和一个括号。您应该使用双百分号使其工作，如下所示：
System.out.printf("Please enter Federal Tax Rate. (e.g. 7.5 would be 7.5%%)%n");