Program to Add Digits of Number using While loop
- Write a program to Add Digits of Number using While loop in C
- Write a program to Add Digits of Number using While loop in C++
- Write a program to Add Digits of Number using While loop in Python
- Write a program to Add Digits of Number using While loop in PHP
- Write a program to Add Digits of Number using While loop in Java
- Write a program to Add Digits of Number using While loop in Java Script
- Write a program to Add Digits of Number using While loop in C#
Explanation:
To add a number’s digits using a for loop, you can use the modulo operator % to repeatedly extract the number’s last digit, add it to a sum variable, and then use integer division // to delete the last digit.
Logic
- Take input for the number (n).
- Initialize a variable sum to 0 to store the sum of digits.
- Use a While loop to iterate while nnn is not 0:
- Extract the last digit of n using n % 10.
- Add the digit to sum.
- Remove the last digit of nnn using n = n/10.
- The final value of sum will be the sum of all digits.
Program to Add Digits of Number using While loop
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C
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C++
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Python
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PHP
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JAVA
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Java Script
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C#
#include <stdio.h> int main() { int num, sum = 0; printf("Enter a number: "); scanf("%d", &num); // Handle negative numbers if (num < 0) { num = -num; } // Add digits while (num != 0) { sum += num % 10; // Add last digit to sum num /= 10; // Remove last digit } printf("Sum of digits: %d\n", sum); return 0; }
#include <iostream> using namespace std; int main() { int num, sum = 0; cout << "Enter a number: "; cin >> num; // Handle negative numbers if (num < 0) { num = -num; } // Add digits while (num != 0) { sum += num % 10; // Add last digit to sum num /= 10; // Remove last digit } cout << "Sum of digits: " << sum << endl; return 0; }
num = int(input("Enter a number: ")) sum_digits = 0 # Handle negative numbers if num < 0: num = -num # Add digits while num != 0: sum_digits += num % 10 # Add last digit to sum num //= 10 # Remove last digit print(f"Sum of digits: {sum_digits}")
<?php $num = (int)readline("Enter a number: "); $sum = 0; // Handle negative numbers if ($num < 0) { $num = -$num; } // Add digits while ($num != 0) { $sum += $num % 10; // Add last digit to sum $num = (int)($num / 10); // Remove last digit } echo "Sum of digits: $sum\n"; ?>
import java.util.Scanner; public class SumOfDigits { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.print("Enter a number: "); int num = sc.nextInt(); int sum = 0; // Handle negative numbers if (num < 0) { num = -num; } // Add digits while (num != 0) { sum += num % 10; // Add last digit to sum num /= 10; // Remove last digit } System.out.println("Sum of digits: " + sum); sc.close(); } }
let num = parseInt(prompt("Enter a number: ")); let sum = 0; // Handle negative numbers if (num < 0) { num = -num; } // Add digits while (num != 0) { sum += num % 10; // Add last digit to sum num = Math.floor(num / 10); // Remove last digit } console.log(`Sum of digits: ${sum}`);
using System; class Program { static void Main() { Console.Write("Enter a number: "); int num = int.Parse(Console.ReadLine()); int sum = 0; // Handle negative numbers if (num < 0) { num = -num; } // Add digits while (num != 0) { sum += num % 10; // Add last digit to sum num /= 10; // Remove last digit } Console.WriteLine($"Sum of digits: {sum}"); } }