Question

Write a complete C program to get data from file name DATA.TXT one line at a time until there is no more data in that file. The following is one sample line in DATA.TXT ( have as many record as you wish in DATA.TXT)

Name     SSN                           quiz         mid         assignments      participation     final

LISA         111-11-1111      100         100         100                           100                           100

Jack        222-22-2222      80            80            100                           90                              100

Note that the first line is no in DATA.txt.

Your program should create a file name RESULT.txt that reports Name, SSN and a letter grade according to the following rules:

Total= 15% quiz + 15 %mid +40% assignments + 10% Participation+ 20%final

If total >= 90 then A else if total>=80 then B….

You can print same output to screen as well as RESULT.txt.

Answer 1

C Program:

/* C Program that reads student data from file, calculates grade and writes result to Console and file */

#include <stdio.h>
#include <stdlib.h>

//Main function
int main()
{
//File Pointers
FILE *fin, *fout;

char grade;
char name[10], SSN[15];
int quiz, mid, assignments, participation, finalScore;
float total;

//Opening file for reading
fin = fopen("DATA.txt", "r");

//Opening file for writing
fout = fopen("RESULT.txt", "w");

//Read entire data is processed
while(!feof(fin))
{
//Reading data about single student
fscanf(fin, "%s %s %d %d %d %d %d ", name, SSN, &quiz, &mid, &assignments, &participation, &finalScore);

//Calculating total
total = ( ( (15/100.0) * quiz ) + ( (15/100.0) * mid ) + ( (40/100.0) * assignments ) + ( (10/100.0) * participation ) + ( (20/100.0) * finalScore ) );

//Finding grade
if(total >= 90)
grade = 'A';
else if(total >= 80)
grade = 'B';
else if(total >= 70)
grade = 'C';
else if(total >= 60)
grade = 'D';
else
grade = 'F';

//Writing result to file
fprintf(fout, "\n %s %s %c ", name, SSN, grade);

//Writing result to console
printf("\n %s %s %c ", name, SSN, grade);
}

//Closing file pointers
fclose(fin);
fclose(fout);

printf("\n\n");
return 0;
}

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Sample Output:

CTCstudentResults binl DebuglstudentResults.exe LISA 111-11-1111 A Jack 222-22-2222 A Process returned 0 (0x0) execution time 0. 395 s Press any key to continue. RESULT.txt Note.. File Edit Format View Help LISA 111-11-1111 A Jack 222-22-2222 A