Java Program to find Sum of digits of a Number - The Coding Shala

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In this post, we will learn how to write a Java program to find the sum of digits of a given number.

Sum of Digits of a Number Java Program

We will take a reminder of 10 that will give us the last digits of the given number. Add this digit to sum and divide the number by 10 and repeat this step until input number is greater than 0.

Example 1:
Input: 476
Output: 17
Explanation: 4 + 7 + 6  = 17.

Java Program: 

class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(;
        // put your code here
        int num = scanner.nextInt();
        int ans = 0;
        while (num > 0) {
            ans += num % 10;
            num /= 10;

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