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#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;
}
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