Program to maintain student details using files

### Program:

#include<stdio.h> #include<conio.h> void main() { FILE *fptr ; int i, n, rollno, s1, s2 ; char name[10] ; clrscr() ; fptr = fopen("STUDENT.DAT", "w") ; printf("Enter the number of students : ") ; scanf("%d", &n) ; for(i = 0 ; i < n ; i++) { printf("\nEnter the roll number : ") ; scanf("%d", &rollno) ; printf("\nEnter the name : ") ; scanf("%s", name) ; printf("\nEnter the marks in 2 subjects : ") ; scanf("%d %d", &s1, &s2) ; fprintf(fptr, "%d %s %d %d \n", rollno, name, s1, s2) ; } fclose(fptr) ; fptr = fopen("STUDENT.DAT", "r") ; printf("\nRoll No. Name \t\t Sub1 \t Sub2 \t Total\n\n") ; for(i = 0 ; i < n ; i++) { fscanf(fptr,"%d %s %d %d \n", &rollno, name, &s1, &s2) ; printf("%d \t %s \t\t %d \t %d \t %d \n", rollno, name, s1, s2, s1 s2) ; } fclose(fptr) ; getch() ; }

### Output:

Enter the number of students : 2 Enter the roll number : 101 Enter the name : Udaya Enter the marks in 2 subjects : 75 80 Enter the roll number : 157 Enter the name : Viji Enter the marks in 2 subjects : 60 70 Roll No. Name Sub1 Sub2 Total 101 Udaya 75 80 155 157 Viji 60 70 130

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### Comments

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