NeedHelpDebugging

#include <iostream>
#include <iomanip>
#include <fstream>

using namespace std;

//Named constants residential customers
const double RES_BILL_PROC_FEES = 4.50;
const double RES_BASIC_SERV_COST = 20.50;
const double RES_COST_PREM_CHANNEL = 7.50;

//Named constants business customers
const double BUS_BILL_PROC_FEES = 15.00;
const double BUS_BASIC_SERV_COST = 75.00;
const double BUS_BASIC_CONN_COST = 5.00;
const double BUS_COST_PREM_CHANNEL = 50.00;

int main()
{
   //Variable declaration and intialization
    int accountNumber;
    char customerType;
    int numOfPremChannels;
    int numOfBasicServConn;
    double amountDue;

    //declaring file streams
    ifstream inFile;
    ofstream outFile;

    //open the file streams
  inFile.open("input.txt");

    //check wheather file exists or not
    if(!inFile)
    {
		cout <<"\n=============== ERROR! ==================\n\n";
		cout <<"      Could Not Find Input Data File!\n";
		cout <<"\n=========================================\n\n\n";

		        return 1;
    }
    outFile.open("output.txt");


    cout <<"\n==========================================\n\n";
    cout <<"     PROGRAM TO COMPUTE THE CABLE BILL\n";
    cout <<"\n==========================================\n\n";

     //use while loop to get the acoount numbers and customer type from the file
     //Hint:use eof (end of file)
while (!inFile.eof())
{

    cout<< "The account number is: ";
    inFile>> accountNumber;
    cout<<accountNumber<<"\n";

    cout << "The customer type: "
         << "R or r (Residential), "
         << "B or b (Business): ";

    inFile>>  customerType;
    //only printed to screen for now
    cout << customerType;

    switch (customerType)
    {
        case 'r':
        case 'R':
            cout << "\n\nEnter the number"
                 << " of premium channels: ";
            cin >> numOfPremChannels;
            cout << "\n\n";

            amountDue = RES_BILL_PROC_FEES
                       + RES_BASIC_SERV_COST
                       + numOfPremChannels *
                         RES_COST_PREM_CHANNEL;

            cout << "Premium Channels = " << numOfPremChannels;
            cout << "\nAmount Due = $" << amountDue << endl << endl << endl;
            //writing to a outputfile (to be done)

            break;

        case 'b':
        case 'B':
            cout << "\n\nEnter the number of basic "
                 << "service connections: ";
            cin >> numOfBasicServConn;


            cout << "\nEnter the number"
                 << " of premium channels: ";
            cin >> numOfPremChannels;
            cout << "\n\n";

            if (numOfBasicServConn<= 10)
                amountDue = BUS_BILL_PROC_FEES
                            + BUS_BASIC_SERV_COST
                            + numOfPremChannels *
                              BUS_COST_PREM_CHANNEL;
            else
                amountDue = BUS_BILL_PROC_FEES
                            + BUS_BASIC_SERV_COST
                            + (numOfBasicServConn - 10) *
                               BUS_BASIC_CONN_COST
                            + numOfPremChannels *
                              BUS_COST_PREM_CHANNEL;

            //writing to an ouputfile: to be done, once double-printing is debugged
            cout << "Basic Service Connections = " << numOfBasicServConn;
            cout << "\nPremium Channels = " << numOfPremChannels;
            cout << "\nAmount Due = $" << amountDue << endl << endl << endl;

            break;

        default:

            //writing to an outputfile: to be done, once double-printing is debugged

            //invalid account prints 2x for some reason, is that fixable?
            cout << "\n\nThe account number "<< accountNumber <<" has an invalid customer type";
            cout<<"\n\n\n";
            cout<<"Account type is invalid";
            cout<<"\n\n";
            outFile << "The account number " << accountNumber <<" has an invalid customer type";
            break;


    }//end switch
}

    //close inputfile
    inFile.close();

    //close outputfile
    outFile.close();


    return 0;
}