7.DS - Lab -C Program to create a file to store student records(Part A)

 C Program to create a file to store student records

ALGORITHM :

Step 1: Start

Step 2: Create a file named "student_records.txt".

Step 3: Open the file in write mode as file.

Step 4: Input the number of students (num_students).

Step 5: For each student, input their name, roll number, and marks.

Step 6: Write the student's details (name, roll number, and marks) to the file, separated by commas, followed by a newline character.

Step 7: Close the file after adding all student records.

Step 8: End

SOURCE CODE : 

#include <stdio.h>

struct Student {

    char name[50];

    int rollNo;

    float marks;

};

int main() {

    FILE *file;

    file = fopen("student_records.txt", "w");

    if (file == NULL) {

        printf("Error opening the file.\n");

        return 1;

    }

    int n;

    printf("Enter the number of students: ");

    scanf("%d", &n);

    struct Student student;

    for (int i = 0; i < n; i++) {

        printf("\nEnter details for Student %d:\n", i + 1);

        printf("Name: ");

        scanf("%s", student.name);

        printf("Roll No: ");

        scanf("%d", &student.rollNo);

        printf("Marks: ");

        scanf("%f", &student.marks);

        fprintf(file, "Name: %s, Roll No: %d, Marks: %.2f\n", student.name, student.rollNo, student.marks);

    }

    fclose(file);

    return 0;

}

OUTPUT : A file "student_records.txt" will be created with the student details. 

Then execute this. 

Enter the number of students: 2

Enter details for Student 1:

Name: John Doe

Roll No: 101

Marks: 85.5

Enter details for Student 2:

Name: Jane Smith

Roll No: 102

Marks: 78.0