-5
私はコーディング時に新しいです。私はjGraspで給与計算の登録をしようとしていますが、 "シンボルを見つけることができません"と "変数はすでにメソッドに定義されています。私は既に変数の1つを定義したように見えますが、変数を適切に動作させるために何を変更するかを知ることはできません。私は下のエラーでスポットをマークした。助けをあらかじめありがとう！エラー "シンボルを見つけることができません"と "変数は既にメソッドに定義されています"
あなたは整数20、30、などと比較されているとして、あなたのcase文（
empDeptCodeが整数であるとして、あなたが
switch(empDeptCode)に変更した場合、それが動作するには...
switch(empDeptCode)に
switch(empDeptNumb)からあなた
switchを変更する必要が
//Lab4 Payroll Register Refinements
//this makes available all extra utilities from Java library including scanner
import java.util.*;
import java.io.*; //needed for files
public class Lab4 // class name MUST be name of .java file
{//start of class
public static void main(String [] args) throws FileNotFoundException
{// start of main method
Scanner keyIn = new Scanner(System.in);
// assigns "keyIn" to keyboard
Scanner inPayrollFile = new Scanner(new FileReader("Lab4Input1.txt"));
// assigns "inPayrollFile" to input file
PrintWriter outPayrollFile = new PrintWriter("Lab4Output1.txt");
// assigns "outPayrollFile" to output file
//System.out displays on the monitor
//Variables and defined constants go here
final String HEADING1 = "ID# HOURS RATE GROSS DEDUCT NET"; //example of a defined constant
String employeeName; //Employee's name is entered
int empId; //Employee's Id number is entered
int empDeptCode; //Employee's department code is entered
double hoursWorked; //Amount of hours worked is entered
double hourlyPayRate; //Employee's hourly pay rate is entered
double empOvertimePay; //Employee's overtime rate
double empRegPay; //Employee's regular rate of pay
double empBonus; //Employee's bonus pay
double grossPay; //Employee's gross pay
double deduction; //Amount deducted from gross pay
double netPay; //Employee net pay
double totalGrossPay = 0; //Employee's total gross pay
double totalNetPay = 0; //Employee's total net pay
double totalDeduction = 0;//Total amount deducted
int totalEmployees = 0; //Total number of employees
///////////////////////////////////////////////////////////////////////////
//instructions start here
System.out.println ("Please enter Employee name: ");
employeeName = keyIn.nextLine();
//before loop instructions go here
outPayrollFile.println (HEADING1);
//example of Printing report heading to the output file
///////////////////////////////////////////////////////////////////////////
//loop, which has input, process, output
while(inPayrollFile.hasNext())
{//start while loop - hasNext is TRUE when there is an input record
// hasNext is FALSE when no more input records - the loop ends
//input - within loop
empId = inPayrollFile.nextInt(); //example of reading from input file
hoursWorked = inPayrollFile.nextDouble ();
hourlyPayRate = inPayrollFile.nextDouble ();
empDeptCode = inPayrollFile.nextInt();
System.out.println ("Processing empId" + empId);
//process - within loop
empRegPay = getRegPay(hoursWorked, hourlyPayRate);
empOvertimePay = getEmpOvertimePay(hoursWorked, hourlyPayRate);
grossPay = empRegPay + empOvertimePay;
empBonus = getBonus(grossPay, hoursWorked, empDeptCode);
grossPay = grossPay + empBonus;
deduction = getDeduction(grossPay);
netPay = grossPay - deduction;
if (grossPay > 1000)
{
deduction = grossPay * 0.30;
}
else
{ deduction = grossPay * 0.25;
} //endif
netPay = (grossPay - deduction);
totalGrossPay = (totalGrossPay + grossPay);
totalDeduction = (totalDeduction + deduction);
totalNetPay = (totalNetPay + netPay);
totalEmployees = (totalEmployees + 1);
if (grossPay > 1000)
{
deduction = grossPay * 0.30;
}
else
{ deduction = grossPay * 0.25;
} //endif
//output - within loop
outPayrollFile.printf ("%4d", empId);
outPayrollFile.printf ("%10.2f", hoursWorked);
outPayrollFile.printf ("%10.2f", hourlyPayRate);
outPayrollFile.printf ("%10.2f", grossPay);
outPayrollFile.printf ("%10.2f", deduction);
outPayrollFile.printf ("%10.2f%n", netPay);
}//end while loop
///////////////////////////////////////////////////////////////////////////
//after loop instructions go here
System.out.println ();
outPayrollFile.printf ("Total%29.2f", totalGrossPay);
outPayrollFile.printf ("%10.2f", totalDeduction);
outPayrollFile.printf ("%10.2f%n", totalNetPay);
outPayrollFile.printf ("Total Employees%4d", totalEmployees);
inPayrollFile.close();
outPayrollFile.close();
System.out.println ("Program Completed");
System.out.println ("Program written by " + employeeName);
}//end of main
///////////////////////////////////////////////////////////////////////////
//regular pay method goes here
///////////////////////////////////////////////////////////////////////////
public static double getRegPay (double mEmpHours, double mEmpRate)
{//begin method
double result; //local variable for gross
if (mEmpHours > 40)
{
result = mEmpRate * 40;
}
else
{ result = mEmpHours * mEmpRate;
} //endif
return result; //value in mGross is returned
}//end method
///////////////////////////////////////////////////////////////////////////
//overtime pay method goes here
///////////////////////////////////////////////////////////////////////////
public static double getEmpOvertimePay (double mEmpHours, double mEmpRate)
{//begin method
double result; //local variable for gross
if (mEmpHours > 40)
{
result = mEmpRate * 1.5 * (mEmpHours - 40);
}
else
{ result = 0;
} //endif
return result; //value in mGross is returned
}//end method
///////////////////////////////////////////////////////////////////////////
//gross pay method goes here
///////////////////////////////////////////////////////////////////////////
public static double getGrossPay (double empRegPay, double empOvertimePay)
{//begin method
double result; //local variable for gross pay
result = empRegPay + empOvertimePay;
return result; //value in gross pay is returned
}//end method
///////////////////////////////////////////////////////////////////////////
//bonus pay method goes here
///////////////////////////////////////////////////////////////////////////
public static double getBonus (double mGrossPay, double mEmpHours, int mEmpDept)
{//begin method
double mBonus; //local variable for bonus
if (mEmpDept ==25)
if (mEmpHours >= 40)
mBonus = 0.10 * mGrossPay;
else
mBonus = 0.05 * mGrossPay;
else mBonus = 0;
return mBonus; //value in mBonus is returned
}//end method
//switch method/translation of department code to department name
public static String getEmpDeptCode (int empDeptCode)
{//begin method
String empDeptNumb;
switch (empDeptNumb)
{//begin switch
case 20: //if code = 20
empDeptNumb = "Administration";
break;
case 23: //if code = 23
empDeptNumb = "Production";
break;
case 25: //if code = 25
empDeptNumb = "Sales";
break;
default: //else if none of the cases are true
empDeptNumb = "Invalid";
}//end switch
return empDeptNumb;
}//end method
///////////////////////////////////////////////////////////////////////////
//second gross pay method goes here
///////////////////////////////////////////////////////////////////////////
public static double getEmpGrossPay (double empGrossPay, double empBonus)
{//begin method
double result; //local variable for gross pay
result = empGrossPay + empBonus;
return result; //value in gross pay is returned
}//end method
//////////////////////////////////////////////////////////////////////////
//deduction pay method goes here
//////////////////////////////////////////////////////////////////////////
public static double getDeduction (double mGross)
// getDeduction is the value-returning method name
// it will be sent a double and that value goes into mGross
{//begin method
double mDeduction; //local variable for deduction
if (mGross > 1000)
mDeduction = (mGross - 1000) * 0.30 + 225;
else
if (mGross > 500)
mDeduction = (mGross - 500) * 0.25 + 100;
else
mDeduction = mGross * 0.20;
return mDeduction; //value in mDeduction is returned
}//end method
//////////////////////////////////////////////////////////////////////////
//net pay method goes here
//////////////////////////////////////////////////////////////////////////
public static double getNetPay (double empGrossPay, double empDeduction)
{//begin method
double netPay; //local variable for net pay
result = empGrossPay - empDeduction; <--- this is the first error
return result; //value in net pay is returned <--- this is the second error
}//end method
///////////////////////////////////////////////////////////////////////////
//department code method goes here
///////////////////////////////////////////////////////////////////////////
public static double empDeptNumb (double empDeptNumb)
{//begin method
double empDeptCode; //local variable for empDeptCode <---this is the third error
result = empDeptNumb; <---this is the fourth error
return result; //value in empDeptNumb is returned <--- the final error
}//end method
}//end of class
は、あなたが初期化されていない文字列を切り替えると、あなたが期待する「スイッチ（empDeptCode）」である必要がありますにすべてであることを賭けていますそれは継続するべきではないain）数字？それはどうやって動くのだろう？ – Tom