I am trying to figure out how or what looping method
to use to read multiple data from a file.
The file has several income brackets (A, B, & C), and some ratings for product1 and product2.
The data file looks like this:
What I want to do is read in and calculate the average rating for product 1 (the first number)
A 5 7
A 4 8
A 3 9
B 2 7
C 1 6
C 8 2
A 7 5
B 6 9
that bracket A rated, then bracket B,
and finally C.
I have figured out how to read A or B or C,
by using an if statement and simply changing
the argument to A or B or C,
but I don't know how to have it read the data for A,
then read B, and then C without intervening.
Here is the code I have so far:
/* This program will display for each income bracket
(A,B, & C) the average rating for
* product 1. */
#include <iostream> // cout, cin, <<, >>
#include <string> // string
#include <cstdlib> // exit()
#include <cassert> // assert
#include <fstream> // ifstream
using namespace std;
cout << "Enter name of file: ";
while (inFile.get (c) )
if (c == 'A') /* get income bracket A information */
inFile >> prod1 >> prod2;
cout << "Product 1 rating: " << prod1 << " Product 2 rating: "
<< prod2 << " Count: " << count << "\n"; // display prod ratings read from file
prod1Total += prod1;
cout << "Prod1Total = " << prod1Total << "\n"; // display prod1 total
prod1AveA = prod1Total / count;
cout << "Average for Product 1 in income class A: " << prod1Ave << "\n\n";
cout << "Average for Product 1 in income class A: " << prod1AveA << "\n\n";