🏗️⚡Beginner

Store Information of Students Using Structure

Student data structure

A structure groups related variables of different types under one name. Perfect for representing real-world entities like students, books, employees, etc.

❓ Why Use Structures?

❌ Without Structure

int id1, id2, id3;
char name1[50], name2[50];
float gpa1, gpa2, gpa3;

Hard to manage and error-prone

✓ With Structure

struct Student s1, s2, s3;
struct Student students[100];

Clean, organized, and scalable

🏗️ Structure Diagram

struct Student

intid(4 bytes)

char[50]name(50 bytes)

floatgpa(4 bytes)

Program Code

struct_student.c

1#include <stdio.h>
2#include <string.h>
3
4// Define the structure
5struct Student {
6    int id;           // Student ID
7    char name[50];    // Student name
8    float gpa;        // Grade point average
9};
10
11int main() {
12    // Declare a structure variable
13    struct Student s1;
14    
15    // Input student data
16    printf("Enter student ID: ");
17    scanf("%d", &s1.id);       // Use &s1.id (address of member)
18    
19    printf("Enter name: ");
20    scanf("%49s", s1.name);    // Array name is already an address
21    
22    printf("Enter GPA: ");
23    scanf("%f", &s1.gpa);
24    
25    // Display student data using dot operator
26    printf("\n--- Student Information ---\n");
27    printf("ID:   %d\n", s1.id);
28    printf("Name: %s\n", s1.name);
29    printf("GPA:  %.2f\n", s1.gpa);
30    
31    return 0;
32}