C program to Store Information of Students Using Structure

What is the Structure in C?

User-defined data types include structures. Structures aid your ability to combine things of various categories into a single group. Like arrays, it operates similarly. A variety of various data types are stored there.

A structure is a made-up building or a particular grouping of objects or people, especially with several elements.

C programming structures are given below:

Link, Definition, Documentation, Global Declaration Subprogrammes and the Main() function. The main() function must be present in every C programme; the other functions are optional.

Benefits of Structure

Since we can use a single name to describe the entire record, maintaining it is quite simple. We can use a single argument in Structure to pass an entire set of records to any function. To store more records with related types, use an array of Structures.

The program produces a structured student. Three components make up the Structure: names (string), rolls (integer), and marks (float).

In C, a user-defined data type is called a structure. An item with potentially many types can be combined into a single type using the data type that a structure offers.

The student structure is built using the 'struct' keyword as follows:

struct Student

{

char* name;

int roll_number;

int age;

double total_marks;

};

Here is a sample program on how to store information about students and display it using Structure,

// Store information of students and display it using Structure
#include<stdio.h>
#include<conio.h>
Struct student{
char name[50];//declaration of file of char type
int roll;
float marks;
}
int main()
{
printf("Enter information:\n");// requests that the user enter information
printf("Enter name: ");// seeks the user to enter the name
fgets(s,.name,size of(s.name),stdin);// File input


printf("Enter roll number:");// seeks the user to enter the roll number
scanf("%d,&s.roll");// to make loop ends
printf("%f",&s.marks);
printf("Display Information:\n");// Displays the information 
printf("Name: ");// prints the information required
printf("%s",s.name);
printf("Roll number: %d\n",s.roll);// prints the information required
printf("Marks:%1f\n",s.marks);
return 0;
}

Output

Enter information:
Enter name: Bittu
Enter roll number: 025
Enter marks: 86.5
Display Information:
Name: Bittu
Roll number: 25
Marks: 86.500000

The above program is based on only particular student information students using Structure.

Find out how many students' information will be kept on file. We are only taking 5 students in this instance to keep things simple. To access the data, create a Student structure variable. Here, it is assumed to mean "student."

Retrieve the information for n students using the dot (.) operator, then enter it into the fields for each student.

Syntax:

Student[i].member = value;

Use the dot (.) operator and a loop to print the records of each student after all the data has been recorded.

Syntax:

Student[i].member;

/* This program is based on data from five students who used Structure.

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// Create the student structure
struct Student {
char* name;
int roll_number;
int age;
double total_marks;
};
// Driver code
int main()
{
int i = 0, n = 5;
// Make a variable for the student's Structure.
// with n records for students
struct Student student[n];
// Obtain student information
student[0].roll_number = 1;
student[0].name = "Bittu";
student[0].age =21;
student[0].total_marks = 80.26;
student[1].roll_number = 4;
student[1].name = "Chintu";
student[1].age = 18;
student[1].total_marks = 90.74;
student[2].roll_number = 2;
student[2].name = "Yash";
student[2].age = 11;
student[2].total_marks = 87.54;
student[3].roll_number = 5;
student[3].name = "Sunny";
student[3].age = 12;
student[3].total_marks = 76.39;
student[4].roll_number = 3;
student[4].name = "Sohail";
student[4].age = 13;
student[4].total_marks = 81.22;
// Print the Students information
printf("Student Records:\n\n");
for (i = 0; i < n; i++) {
printf("\tName = %s\n", student[i].name);
printf("\tRoll Number = %d\n", student[i].roll_number);
printf("\tAge = %d\n", student[i].age);
printf("\tTotal Marks = %0.2f\n\n", student[i].total_marks);
}
return 0;
}

Output

Student Records:


Name = Bittu
Roll Number = 1
Age = 21
Total Marks = 80.26


Name = Chintu
Roll Number = 4
Age = 18
Total Marks = 90.74


Name = Yash
Roll Number = 2
Age = 11
Total Marks = 87.54


Name = Sunny
Roll Number = 5
Age = 12
Total Marks = 76.39


Name= Sohail
Roll Number = 3
Age = 13
Total Marks = 81.22

Explanation

With the help of structures, this software keeps the data (name, roll, and marks) of 5 students.

This program creates a structure for the students.

Name (string), roll (integer), and marks (marks) are the three components that make up this Structure (float).

The application retrieves the data for 5 students from the user and shows it on the screen using a loop.