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Write a C program to read name and marks of n number of students from the user and store them in a file. If the file previously exits, add the information of n students.

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Write a C program to read name and marks of n number of students from the user and store them in a file. If the file previously exits, add the information of n students.

Program Code

#include <stdio.h>
int main()
{
   char name[50];
   int marks, i, num;

   printf("Enter number of students: ");
   scanf("%d", &num);

   FILE *fptr;
   fptr = (fopen("C:\\student.txt", "a"));
   if(fptr == NULL)
   {
       printf("Error!");
       exit(1);
   }

   for(i = 0; i < num; ++i)
   {
      printf("For student%d\nEnter name: ", i+1);
      scanf("%s", name);

      printf("Enter marks: ");
      scanf("%d", &marks);

      fprintf(fptr,"\nName: %s \nMarks=%d \n", name, marks);
   }

   fclose(fptr);
   return 0;
}

Output

See you file directory

Explanation

Write a C program to read name and marks of n number of students from the user and store them in a file. If the file previously exits, add the information of n students.

How to learn from this program

First read the algorithm, then study the program code line by line. After that, compare the code with the output and finally go through the explanation. This approach helps learners understand both the logic and the implementation properly.