inData/outData

[ferfax]

Hey guys, currently learning the basics. Got a project we we have to write for class and I've got stuck. I wanted to improve the base concept and make it more functional. Currently we need to take the # of tickets and number and create a cost. I know I can do it if I write a variable for each line from the inData,but I'd like to write so it could either take 1 line from the inData or infinity. thanks guys.

Heres my code.

#include <iostream>
#include <fstream>
#include <iomanip>
using namespace std;

int main()
{	
	double ticketPrice;
	int numberofTicketsSold;
	double totalTickets;
	int i;// number of time to write to outData
	int k=0;// number of lines inData
	ifstream inData;
	ofstream outData;

	//files to open/close
	inData.open("ticketssales.txt");
	outData.open("ticketsalesreport.txt");
	//loop for var k
	while(!inData.eof())
{k++;
	inData >> ticketPrice >> numberofTicketsSold;
}
	totalTickets = (ticketPrice * numberofTicketsSold);

	cout << ticketPrice << " " << numberofTicketsSold << " " << totalTickets; //used for debugging 

	outData << "#Tickets" << " " << "$Tickets" << " " << "Total" << endl;//header for outdata
	for(i=0; i<k; ++i)//loop for outData
		outData <<  ticketPrice << "	"<< numberofTicketsSold << "	" << totalTickets  << endl;
	
	



	system("pause");
	return 0;
}

========
here is the indata

50 2500
100 1000
2900 200
10000 50

[AbstractionAnon]

while(!inData.eof())
{k++;
inData >> ticketPrice >> numberofTicketsSold;
}
totalTickets = (ticketPrice * numberofTicketsSold);

Each time though the loop, you're overwriting the values of ticketPrice and numberofTicketsSold. When you exit the loop, those variables contain only the respective values of the last record read.

for(i=0; i<k; ++i)//loop for outData
outData << ticketPrice << " "<< numberofTicketsSold << " " << totalTickets << endl;

You're going to print the same (last) value of ticketPrice and numberofTicketsSold each time through the loop.

PLEASE USE CODE TAGS (the <> formatting button) when posting code.

[ferfax]

Sorry fixed the format. But how could I get it to print an outdata for each line?

[AbstractionAnon]

Thanks for adding code tags.

Move your calculation and print startement inside the loop.

  while(!inData.eof())
  {  inData >> ticketPrice >> numberofTicketsSold;
      totalTickets = (ticketPrice * numberofTicketsSold);
      cout << ticketPrice << " " << numberofTicketsSold << " " <<   totalTickets << endl;
  }

[ferfax]

Wow that was really easy thanks man.