# Java Program to find Sum of Digits

You are Here:

## Find Sum of Digits

In the following example, we will add all the digits in the given number (12345) for just one time.

For example, 12345 = 1 + 2 + 3 + 4 + 5
i.e., 12345 = 15

### Example

Java Compiler
public class myClass { public static void main(String[] args) { int num = 12; int copyNum = num; int total = 0; // Add Each digit from last digit while(copyNum != 0) { total += copyNum % 10; copyNum = copyNum / 10; } // result System.out.format("The sum of digit %d: %d", num, total); } }

### Output

The sum of digit 12: 3

## Find Sum of any given Digits

In the following example, we will find the sum of any given digits.

### Example

Java Compiler
import java.util.Scanner; public class myClass { public static void main(String[] args) { Scanner reader = new Scanner(System.in); System.out.print("Enter a (int) number: "); int num = reader.nextInt(); int copyNum = num; int total = 0; // Add Each digit from last digit while(copyNum != 0) { total += copyNum % 10; copyNum = copyNum / 10; } // result System.out.format("The sum of digit %d: %d", num, total); } }

### Output

The sum of digit 451: 10

## Reminder

Hi Developers, we almost covered 90% of String functions and Interview Question on Java with examples for quick and easy learning.

We are working to cover every Single Concept in Java.