Question

To answer this question you must submit a fully functional "C" program, this is your "main.c" file.

This is the content of the Grades.txt file (download here)
Adam 4.00 7.00 9.00 10.00
Catherine 10.00 8.00 1.00 9.00
John 10.00 9.00 7.50 6.50
Pedro 10.00 9.00 7.50 9.00
Wanda 9.00 6.50 4.50 10.00

In the file Grades.txt you will find that each line contains the name of a student and his 4 grades for the current term.

Create a C program to open the file Grades.txt, and from each line of the file read the name of the student and his 4 grades using fscanf, then calculate and print in the screen a table with the final/average grade for each student.

Please have in mind the following rules:

• You can use any C program code from the textbook or from the Self Review Exercises to start working on this question.
• Your program MUST use the fscanf function to read the data from the Grades.txt file

The following is an example of how your program should run:

Adam: 7.50
Catherine: 7.00
John: 8.25
Pedro: 8.88
Wanda: 7.50

Process returned 0 (0x0)
Press any key to continue.

Answer 1

Code

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
int main()
{
   FILE *fp;
   char name[50];
   float avg,mark1,mark2,mark3,mark4;

   fp = fopen("Grades.txt", "r");

if(fp == NULL)
{
printf("Error opening file\n");
exit(1);
}
while (fscanf(fp,"%s %f %f %f %f",name,&mark1,&mark2,&mark3,&mark4) !=EOF)
   {
       avg=(mark1+mark2+mark3+mark4)/4;
       printf("%s: %.2f\n", name,avg);
   }
   return 1;
}

output

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