Program 44 - CSU1128 - CSE 2026 - Shoolini University

Program to print name and age entered by the user using function

Explanation

The program prints the name and age entered by the user using a function.

Header

The code begins with including the standard input-output header file and string manipulation header file using #include <stdio.h> and #include <string.h>.

Function Declaration

The program declares a function printNameAndAge to print the name and age:

void printNameAndAge(char *name, int age);: Declares the function with a character pointer name and an integer age as parameters.

Variable Declaration

The main() function is defined, and two variables are declared:

char name[100]: Array to hold the user's name.
int age: Variable to hold the user's age.

Program Description

The program prints a description message for the user to understand its functionality.

User Input

The user is prompted to enter their name and age:

printf("Enter your name: ");: Prompts the user to enter their name.
fgets(name, sizeof(name), stdin);: Reads the name including spaces and stores it in the array name.
name[strcspn(name, "\n")] = 0;: Removes the newline character from the end of the name.
printf("Enter your age: ");: Prompts the user to enter their age.
scanf("%d", &age);: Reads the age and stores it in age.

Function Call

The program calls the printNameAndAge function to print the name and age:

printNameAndAge(name, age);: Calls the function with name and age as arguments.

Function Definition

The program defines the printNameAndAge function:

void printNameAndAge(char *name, int age): Defines the function with a character pointer name and an integer age as parameters.
printf("Your name is %s and your age is %d years.\n", name, age);: Prints the name and age.

Program End

The program ends with return 0; to indicate successful execution.

Code

                    
/*
 * -----------------------------------------------------------
 * Logic Building with Computer Programming (CSU1128)
 * Instructor: Dr. Pankaj Vaidya | Author: Divya Mohan
 * 
 * This code is a part of the educational initiative by dmj.one
 * with aim of empowering and inspiring learners in the field of
 * Computer Science and Engineering through the respective courses.
 * 
 * (c) 2022, Divya Mohan for dmj.one. All rights reserved.
 * -----------------------------------------------------------
 */

#include <stdio.h>
#include <string.h>

void printNameAndAge();

int main()
{
    printf("\n\n Program to print name and age entered by the user using function. \n\n");

    char name[100];
    int age;

    printf("Enter your name: ");
    fgets(name, sizeof(name), stdin);
    name[strcspn(name, "\n")] = 0;

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

    printNameAndAge(name, age);

    return 0;
}
void printNameAndAge(char *name, int age)
{
    printf("Your name is %s and your age is %d years.\n", name, age);
}

Output

Program to print name and age entered by the user using function.

Enter your name: dmj.one
Enter your age: 11
Your name is dmj.one and your age is 11 years.