Question

Write a Web application using servlet to find the sum of all the digits of  an input integer.​

Answer 1

Answer:

Write a Java program to calculate sum of the digits of a number entered by the user.

Program to calculate sum of the digits of a number entered by the user in Java

package com.hubberspot.java.example;

import java.util.Scanner;

public class SumOfDigitsDemo {

public static void main(String[] args) {

Integer number;

Scanner scanner = new Scanner(System.in);

System.out.print("Enter the number whose" +

" sum of digits is to be calculated : ");

number = scanner.nextInt();

System.out.println("Number entered : " + number);

int sum = 0;

while(number > 0) {

int digit = number % 10;

sum = sum + digit;

number = number / 10;

}

System.out.println("The sum of the digits of the" +

" number entered : " + sum);

}

}