Question

Write a program to input a number and check whether it is a Harshad Number or not. [A number is said to be Harshad number, if it is divisible by the sum of its digits. The program displays the message accordingly.]

For example;
Sample Input: 132
Sum of digits = 6 and 132 is divisible by 6.
Output: It is a Harshad Number. 
Sample Input: 353 
Outpul: It is not a Harshad Number.

Answer 1

import java.util.*; 
public class Q15
{
     public static void main(String args[])
     {
        Scanner in = new Scanner(System.in);
        System.out.print(“Enter a number: “);
        int num = in.nextInt();
        int x = num, rem = 0, sum = 0;

        while (x > 0) { 
           rem = x % 10;
           sum = sum + rem;
           x = x / 10;
        }

        int r = num % sum;
        if (r == 0)
           System.out.println(num + " is a Harshad Number.”);
        else
           System.out.println(num + " is not a Harshad Number.”);
     }
}