Using methods with refrence parameters

Question

I'm having problems completing this program I'm writing for class. I must use the setNum and getNum methods. and its must read input files as such:
John Smith
9.45 40 15
Jane Doe
12.50 45 15
I'm keep getting a boolean identifier error. Are there any examples that anyone can give me to make my program work?
import java.io.*;
import java.util.*;
public class Payroll3
     static final double FULL_TIME = 40.0;
     public static void main (String[] args)
                                                  throws FilesNotFoundException
          Scanner inFile = new Scanner(new FileReader("payroll.dat"));
          StringBuffer employeeName = new StringBuffer("");
          DoubleClass hourlyRate = new DoubleClass();
          DoubleClass hoursWorked = new DoubleClass();
          DoubleClass taxRate = new DoubleClass();
          double grossAmount = 0.0;
          double netAmount = 0.0;
          instructions();
          reportTitle();
          inputData();
          while(inFile.hasNext())
               employeeName = inFile.nextLine();
               hourlyRate = inFile.nextDouble();
               hoursWorked = inFile.nextInt();
               taxRate = inFile.nextInt();
          printEmployeeInfo(employeeName, hourlyRate, hoursWorked, taxRate, grossAmount, netAmount);
          inFile.close();     
     public static void instructions()
          System.out.println("               Instructions for Payroll Report Program              \n");
          System.out.println("This program calculates a paycheck for each employess.\n"
                                   + "A text file containing the following information will be created:\n"
                                   + "name, payrate, hours worked, and tax percentage to be deducted.\n");
          System.out.println("The program will create a report in columar format showing the \n"
                                   + "employee name, hourly rate, number of hours worked, tax rate,\n"
                                   + "gross pay, and net pay.\n");
          System.out.println("After all employees are processed, totals will be displayed,\n"
                                   + "including total gross amount and total net pay.\n");
     public static void reportTitle()
          System.out.println("                              Payroll Report                  \n"
                                        + "\n");
          System.out.println("Employee             Hourly      Hours   Tax     Gross     Net     ");
          System.out.println("Name                 Rate       Worked   Rate    Amount   Amount    ");
          System.out.println("----------------     -------   -------  -----  -------   -------");
     public static void printEmployeeInfo(StringBuffer employeeName, Doubleclass hourlyRate, Doubleclass hoursWorked, Doubleclass taxRate, Doubleclas grossAmount, Doubleclass netAmount)
     System.out.printf("%-20s%8.2f%9.2f%8.2f%9.2f%10.2f%n", employeeName, hourlyRate, hoursWorked, taxRate, grossAmount, netAmount);
          if (hoursWorked > FULL_TIME)
                System.out.println("OT");
          else
               System.out.println();
     public static void boolean inputData(StringBuffer employeeName, Doubleclass hourlyRate, Doubleclass hoursWorked, Doubleclass taxRate)
          if (
          hourlyRate.getNum();
          hoursWorked.getNum();
          taxRate.getNum());
          return true;
          else
           return false;
}

Answer 1

I had FilesNotFoundException in the code but I corrected the other issues. my main problem now is the DoubleClass methods. here are the errors that came up now.
Payroll3.java:31: incompatible types
found : double
required: DoubleClass
               taxRate = inFile.nextDouble();
^
Payroll3.java:34: printEmployeeInfo(java.lang.StringBuffer,DoubleClass,DoubleClass,DoubleClass,DoubleClass,DoubleClass) in Payroll3 cannot be applied to (java.lang.StringBuffer,DoubleClass,DoubleClass,DoubleClass,double,double)
          printEmployeeInfo(employeeName, hourlyRate, hoursWorked, taxRate, grossAmount, netAmount);
^
Payroll3.java:63: operator > cannot be applied to DoubleClass,double
          if (hoursWorked > FULL_TIME)
^
Payroll3.java:73: cannot find symbol
symbol : method getNum()
location: class DoubleClass
          hourlyRate.getNum();
^
Payroll3.java:74: cannot find symbol
symbol : method getNum()
location: class DoubleClass
          hoursWorked.getNum();
^
Payroll3.java:75: cannot find symbol
symbol : method getNum()
location: class DoubleClass
          taxRate.getNum();
^
11 errors
----jGRASP wedge2: exit code for process is 1.
----jGRASP: operation complete.
----jGRASP exec: javac -g E:\Chapter 7 Source Code\Payroll3.java
Payroll3.java:9: cannot find symbol
symbol : class FilesNotFoundException
location: class Payroll3
                                                  throws FilesNotFoundException
^
Payroll3.java:24: inputData(java.lang.StringBuffer,DoubleClass,DoubleClass,DoubleClass) in Payroll3 cannot be applied to ()
          inputData();
^
Payroll3.java:28: incompatible types
found : java.lang.String
required: java.lang.StringBuffer
               employeeName = inFile.nextLine();
^
Payroll3.java:29: incompatible types
found : double
required: DoubleClass
               hourlyRate = inFile.nextDouble();
^
Payroll3.java:30: incompatible types
found : int
required: DoubleClass
               hoursWorked = inFile.nextInt();
^
Payroll3.java:31: incompatible types
found : int
required: DoubleClass
               taxRate = inFile.nextInt();
^
Payroll3.java:34: printEmployeeInfo(java.lang.StringBuffer,DoubleClass,DoubleClass,DoubleClass,DoubleClass,DoubleClass) in Payroll3 cannot be applied to (java.lang.StringBuffer,DoubleClass,DoubleClass,DoubleClass,double,double)
          printEmployeeInfo(employeeName, hourlyRate, hoursWorked, taxRate, grossAmount, netAmount);
^
Payroll3.java:63: operator > cannot be applied to DoubleClass,double
          if (hoursWorked > FULL_TIME)
^
Payroll3.java:73: cannot find symbol
symbol : method getNum()
location: class DoubleClass
          hourlyRate.getNum();
^
Payroll3.java:74: cannot find symbol
symbol : method getNum()
location: class DoubleClass
          hoursWorked.getNum();
^
Payroll3.java:75: cannot find symbol
symbol : method getNum()
location: class DoubleClass
          taxRate.getNum();
^
11 errors