Thread: i can run my program but the math doesnt come otu

um i dont know how to upload my file so im gona post my project, and i would post the pdf prompt but dono how to post that etiehr XD
so basically i have a few classes and a main
here is the main

/**
 * Title: Car Wash with class
 *
 * Description: This program calculates the cost of a car wash based on level
 * of service, type of vehicle, and number of previous washes
 * This uses methods for calculation and validation
 *
 * @author Michael Newby
 * @version 1.0
 */
 
import javax.swing.*;
import java.text.DecimalFormat;
 
public class CarWashWithClass
{
    public static void main(String[] args)
    {
        long invoiceNumber;
        String name;
        char serviceType,
             responseSUV;
        	// responseDetailing;
        int numberOfPrevious;
 
        int numberOfVehicles = 0;
 
        double totalDiscount = 0.0,
               totalAmountDue = 0.0;
 
        DecimalFormat twodigits = new DecimalFormat("0.00");
 
        CarWash service = null;
 
        invoiceNumber = getInvoiceNumber();
 
        while (invoiceNumber > Long.MIN_VALUE)
        {
            name = getCustomerName();
        	serviceType = getValidType();
            responseSUV = getSUVResponse();
            numberOfPrevious = getPreviousService();
            if (numberOfPrevious == 0) // check for new customer
            {
            	service = new CarWash();
            	service.serviceForNewCustomer(invoiceNumber, name);
            }
            else
            {
            	service = new CarWash(invoiceNumber,name);
            	service.serviceForExistingCustomer(numberOfVehicles);
            }
            service.setSUV(responseSUV); //set whether SUV this has an error i dont know why
 
            JOptionPane.showMessageDialog(null, "Invoice number: " + service.getInvoiceNumber()
            		                       + "\nCustomer name: " + service.getName()
                                           + "\nType of service: " + service.typeOfServiceAsString()
                                           + "\nVehicle type: " + service.vehicleAsString()
                                           + "\nNumber of service: " + service.getnumberOfService()
                                           + "\nBasic cost: " +
                                                   twodigits.format(service.basicCost())
                                           + "\nSUV extra cost: " +
                                                   twodigits.format(service.extraCostForSUV())
                                           + "\nCost of service: " +
                                                   twodigits.format(service.costOfService())
                                           + "\nDiscount: " + twodigits.format(service.discountAmount())
                                           + "\nAmount due: " +
                                                  twodigits.format(service.amountDue())
                                           + "\nServices to next free: " + service.numberTillNextFree());
            numberOfVehicles++;
            totalDiscount += service.discountAmount();
            totalAmountDue += service.amountDue();
 
            invoiceNumber = getInvoiceNumber();
        }//end while
        JOptionPane.showMessageDialog(null, "Number of cars washed: " + numberOfVehicles
                                         + "\nTotal discount: " + twodigits.format(totalDiscount)
                                         + "\nTotal amount: " + twodigits.format(totalAmountDue));
       System.exit(0);
   } //end main
 
   public static long getInvoiceNumber()
   {
       long customerNumber;
       String inNumber;
 
       do
       {
           inNumber = JOptionPane.showInputDialog("Enter invoice number:");
           if (inNumber.equals(""))
             customerNumber = Long.MIN_VALUE;
          else
          {
             customerNumber = Long.parseLong(inNumber);
             if (!isValidNumber(customerNumber))
                 JOptionPane.showMessageDialog(null, "Invoice number must be positive",
                                               "Invalid Number", JOptionPane.ERROR_MESSAGE);
          } // end if
     } while (!isValidNumber(customerNumber));
     return customerNumber;
   } // end getCustomerNumber
 
   public static boolean isValidNumber(long number)
   {
     return (number > 0 || number == Long.MIN_VALUE);
   } //end isValidNumber
 
   public static String getCustomerName()
   {
	   String name;
	   name = JOptionPane.showInputDialog("Customer name");
	   while (name.isEmpty())
	   {
		   name = JOptionPane.showInputDialog("Name cannot be blank..re-enter");
	   }
	   return name;	   
   }
 
   public static char getValidType()
   {
     char serviceType;
     String inType;
     do
     {
         inType = JOptionPane.showInputDialog("Type of wash:");
         if (inType.equals(""))
         {
             serviceType = '\0';
         }
         else
         {
            serviceType = inType.charAt(0);
            serviceType = Character.toUpperCase(serviceType);
            if (!isValidService(serviceType))
            {
                JOptionPane.showMessageDialog(null, "No such service",
                                              "Invalid Service", JOptionPane.ERROR_MESSAGE);
            }
        } //end if
     } while (!isValidService(serviceType));
     return serviceType;
   } //end getValidType
 
 
   public static boolean isValidService(char serviceType)
   {
       boolean valid;
       switch (serviceType)
       {
       case 'T' : case 'W': case 'S':
           valid = true;
           break;
       default:
           valid = false;
           break;
       }// end switch
       return valid;
   } //end isValidService
 
   public static int getPreviousService()
   {
       int previousService;
       String inPrevious;
       inPrevious = JOptionPane.showInputDialog("Number of previous services:");
       previousService = Integer.parseInt(inPrevious);
       while (!isValidNumber(previousService))
       {
           JOptionPane.showMessageDialog(null, "Service must be between 0 and " + (CarWash.FREE_WASH - 1),
                                              "Invalid Number", JOptionPane.ERROR_MESSAGE);
           inPrevious = JOptionPane.showInputDialog("Number of previous services:");
           previousService = Integer.parseInt(inPrevious);
        } //end while
        return previousService;
    }// end getPreviousService
 
    public static boolean isValidNumber(int numberOfService)
    {
        return (numberOfService >= 0 && numberOfService <= CarWash.FREE_WASH - 1);
    } // end isValidNumber
 
    public static char getSUVResponse()
    {
        char response;
        String inSUV;
        inSUV = JOptionPane.showInputDialog("Is vehicle an SUV?");
        response = inSUV.charAt(0);
        response = Character.toUpperCase(response);
        while (!isValidResponse(response))
        {
           JOptionPane.showMessageDialog(null, "Please respons Y or N",
                                              "Invalid Number", JOptionPane.ERROR_MESSAGE);
           inSUV = JOptionPane.showInputDialog("Is vehicle an SUV?");
           response = inSUV.charAt(0);
           response = Character.toUpperCase(response);
       } //end while
       return response;
   }// end getSUVResponse
 
   public static boolean isValidResponse(char response)
   {
       boolean valid;
       switch (response)
       {
       case 'Y' : case 'N':
           valid = true;
           break;
       default:
           valid = false;
           break;
       }// end switch
       return valid;
   } //end isValidResponse
} // end class CarWashWithClass

----
here is CarWash the superclass

public class CarWash
{
	final static double THE_WORKS_COST = 11.95;
   	final static double WHEEL_WORKS_COST = 14.95;
    final static double SUPER_WORKS_COST = 17.95;
  	final static double SUV_COST = 3.0;
   	final static int FULL_COST_LIMIT = 5;
   	final static int FREE_WASH = 10;
    final static double DISCOUNT_RATE = 0.05;	
 
	private long invoiceNumber;
	private String customerName;
	protected double basicRate;
	protected int numberOfService;
	protected boolean whetherSUV;
 
	public CarWash()
	{
	}
	//end constructor
 
	public CarWash(long number, String name)
	{
		invoiceNumber = number;
		customerName = name;
		basicRate = 0;
		numberOfService = 0;
		whetherSUV = false;
	}
 
	public void serviceForNewCustomer(long number, String name)
	{
		invoiceNumber = number;
		customerName = name;
		basicRate = 0;
		numberOfService = 1;
		whetherSUV = false;
	}
 
	public void serviceForExistingCustomer(int previousServices)
	{
		if (previousServices == 10)
			numberOfService = 1;
		else
			numberOfService = previousServices + 1;
		basicRate = 0;
		whetherSUV = false;
	}
 
	public void setSUV()
	{
		whetherSUV = true;
	}
 
	public double basicCost()
	{
		 return basicRate;
    } // end basicCost
 
 
 
	public double extraCostForSUV()
	{
		 double extraCost;
     		   if (whetherSUV)
            {
            	extraCost = SUV_COST;
             }
       		else
            {
        		extraCost = 0.0;
             } //end if
      		return extraCost;
             }// end extraCostForSUV
 
	public double costOfService()
	{
		return basicCost() + extraCostForSUV();
	}
 
	public double discountAmount()
	{
		double discount = 0.0;
        return discount;
    } //end discountAmount
 
	  public double amountDue()
 	   {
     	   return costOfService() - discountAmount();
 	   } //end amountDue
 
	public int numberTillNextFree()
    {
        int toNextService;
        if (numberOfService == FREE_WASH)
            toNextService = FREE_WASH;
        else
            toNextService = FREE_WASH - (numberOfService + 1);
        return toNextService;
    } //end numberToNextFree
 
    public String typeOfServiceAsString()
    {
    	return " ";
    } // end typeOfService
 
    public String vehicleAsString()
    {
        String outSUV;
        if (whetherSUV)
        {
            outSUV = "SUV";
        }
        else
        {
            outSUV = "Not SUV";
        } //end if
        return outSUV;
    }// end isSUVString
 
	public long getInvoiceNumber()
    {
        return invoiceNumber;
    } //end getInvoiceNumber
 
	public String getName()
    {
    	return customerName;
    }
    public double getRate()
    {
        return basicRate;
    } //end getServiceType
 
    public boolean isSUV()
    {
        return whetherSUV;
    } // end isVehicleSUV
 
    public int getnumberOfService()
    {
        return numberOfService;
    } // end getPreviousServices
} // end class CarWash

---

here is WheelWorks subclass

public class WheelWorks extends CarWash
{
	public WheelWorks()
	{
 
	}//end constructor
 
	public WheelWorks(long number, String name)
	{
		super(number, name);
		basicRate = WHEEL_WORKS_COST;
		numberOfService = 0;
		whetherSUV = false;
	}
 
	public void serviceForNewCustomer(long number, String name)
	{
		super.serviceForNewCustomer(number, name);
		basicRate = WHEEL_WORKS_COST;
		numberOfService = 1;
		whetherSUV = false;
	}
 
	public void serviceForExistingCustomer(long number, String name)
	{
		int previousServices = 0;
		if (previousServices >= 0 && previousServices<=9)
			basicRate = WHEEL_WORKS_COST;
 
		else if (previousServices == 10)
			numberOfService = previousServices + 1;
			whetherSUV = false;
	}
 
	public double discountAmount()
	{
		double discount;
	    if (numberOfService < FREE_WASH)
		  discount = DISCOUNT_RATE * costOfService(); //applies discount if number of serivce < 10
	    else if (numberOfService <= FULL_COST_LIMIT)
        {
            discount = 0.0;
        }//discount is 0 if number of service < 5
	    else
        { 
            discount = costOfService();
        } //end if
        return discount;
    } //end discountAmount
 
	public String typeOfVehicleAsString()
	{
		return "Wheel Works";
	}
 
 
}

-----
superworks

public class SuperWorks extends CarWash
{
	protected boolean detailing;
 
	public SuperWorks()
	{
 
	}
 
	public SuperWorks(long number, String name)
	{
		super(number, name);
		basicRate = SUPER_WORKS_COST;
		numberOfService = 0;
		whetherSUV = false;
 
	}
 
	public void serviceForNewCustomer(long number, String name)
	{
		super.serviceForNewCustomer(number, name);
		basicRate = SUPER_WORKS_COST;
		numberOfService = 0;
		whetherSUV = false;
		detailing = false;
	}
 
	public void serviceForExistingCustomer(long number, String name)
	{
		int previousServices = 0;
		if (previousServices >= 0 && previousServices<=9)
			basicRate = SUPER_WORKS_COST;
 
		else if (previousServices == 10)
			numberOfService = 0;
			whetherSUV = false;
			detailing = false;
				}
 
	public double discountAmount()
	{
		double discount;
        discount = 0.0;
        return discount;
    } //end discountAmount
 
	public String typeOfVehicleAsString()
	{
		return "Super Works";
	}
 
	public int numberTillNextFree()
	{
		 return 9999;
	     //end numberToNextFree
	}
 
	public void setDetailing()
	{
			detailing = true;
	}
 
	public double detailingCost()
	{
		double cost;
		if (detailing = true)
			cost = 10.00;
		else
			cost = 0.0;
		return cost;
	}
 
	public double costOfService()
	{
		return basicCost() + extraCostForSUV() + detailingCost();
	}
}

-----
Theworks

public class TheWorks extends CarWash
{
	public TheWorks()
	{
 
	}//end constructor
 
	public TheWorks(long number,String name)
	{
		super(number, name);
		basicRate = THE_WORKS_COST;
		numberOfService = 0;
		whetherSUV = false;
	}
 
	public void serviceForNewCustomer(long number, String name)
	{
		super.serviceForNewCustomer(number, name);
		basicRate = THE_WORKS_COST;
		numberOfService = 1;
		whetherSUV = false;
	}
 
	public void serviceForExistingCustomer(long number, String name)
	{
			int previousServices = 0;
		if (previousServices >= 0 && previousServices<=9)
			basicRate = THE_WORKS_COST;
 
		else if (previousServices == 10)
			numberOfService = previousServices + 1;
			whetherSUV = false;
	}
	public double discountAmount()
	{
		double discount;
		  if (numberOfService < FREE_WASH)
			  discount = DISCOUNT_RATE * costOfService(); //applies discount if number of serivce < 10
		  else if (numberOfService <= FULL_COST_LIMIT)
	        {
	            discount = 0.0;
	        }//discount is 0 if number of service < 5
		  else
	        { 
	            discount = costOfService();
	        } //end if
	        return discount;
	    } //end discountAmount
 
	public String typeOfVehicleAsString()
	{
		return "The Works";
    } // end typeOfService
 
 
 
 
}

--

this project involves using inheritance and polymorphism and i know i did alot of things wrong

for one this is our 3rd project, but uses the same question from project 2 and project 1 but by doing it in different ways, the project 2 was using classes and objects i think, this one i have to use polymorphism

anyways i copied and pasted his MAIN of PROJECT 2 into PROJECT 3, i checked the prompt and it is pretty correct i blieve

however in the line of the main service.setsuv(responsesuv) it says i have an error because its changing it to a CHAR


also the discount and basic rate come out as 0, i can run the project when i add the parameter Char responsesuv to the superclass but i dont think that is the correct way