How to use While Loop with Student Registration Fee Lab

[nirav11]

# include <iostream>
# include <fstream>
# include <iomanip>
# include <cstdlib> // needed for exit ()
using namespace std;
 
int main()
{
    ifstream inFile;
    ofstream outFile;
 
    inFile.open("registration.txt"); // attempt to open the file for input Student ID first
    {
    char registration;
    if (!inFile.fail()) // if it does not fail, the file exists
        cout <<"A file exits by name Registration.txt.\n"
             <<" Do you want to continue and overwrite it\n"
             <<" with the new information (y or n): ";
        cin >> registration;
        if (tolower(registration) == 'n')
        {
            cout << " File cannot be overwritten." << endl;
            exit (1); // Terminate program execution
        }
    }
    outFile.open("registration.txt"); // open the file for Writing
    if (inFile.fail()) // Successfully Open or Not
    {
        cout << "\nThe file was not sucessfully opened try again"  << endl;
        exit (1);
 
    cout << "The file was successfully opened for output."  << endl;
    return 0;
    }
}// I/O file

now I need to know how to write the codes so i can read in upto 12 students records, calculate the registration fee, print the table of results, calculate and print average registration fee, prints out the students who has taken the most credits, and print out all of the students who have less than 12 credits in order, fewest credit first. Also, need error checking that input values of the studentID, status of residence, and status of study are specified in the valid range. Otherwise, you should report it in an error message, and continue to read the next set of data.
I need a WHILE loop to read and process all the students


MAKE SURE TO READ STUDENT ID FIRST, THE RANGE OF STUDENT ID IS BETWEEN 1 and 999. The Input file should have up to 12 student's data which I already have in put file.

STUDENT ID #        RESIDENCE        STUDY          # of CREDITS                 FEE
 
---------------      -----------------        ---------------     --------------             ------------   
 
    55        In-state        Undergraduate        19            $7345
    100        Out-of- State        Graduate        13            $5233
    974        In-state        Undergraduate         8            $5235
    196        In-state        Graduate         3            $990
    999        Out-of- State        Undergraduate        18            $7213
    100        In-state        Graduate         5            $1034
    497        In-state        Undergraduate        20            $7994
    734        Out-of- State        Graduate         7            $2403
    691        Out-of- State        Undergraduate        12            $4013
    143        In-state        Graduate        21            $8034
    555        Out-of- State        Undergraduate        10            $3985
    01        Out of Country        Graduate        04            $101
 
THE AVERAGE REGISTRATION FEE IS : $4465
THE MOST CREDIT WAS 21 TAKEN BY STUDENT 143.
 
LESS THAN 12 CREDITS
    196 In-State Graduate    3    $990

[nirav11]

BTW THIS IS C++ NOT C codes

[Banfa]

Read this article How to Parse a File in C++

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