Sum of digits of a number

Below program shows how to find out sum of each digit in the given number logic. For example, if the number is 259, then the sum should be 2+5+9 = 16.



PROGRAM

import java.util.Scanner;

class SumOfDigits {

 public static void main(String[] args) {

  int num, sum=0;
  Scanner input = new Scanner(System.in);
  
  System.out.print("Enter the number :: ");
  num = input.nextInt();
  
  while(num > 0) {
   
   sum = sum + (num % 10);
   num = num / 10;
  }
  
  System.out.println("Sum of digits is :: " + sum);
 }

}

OUTPUT 1

C:\>javac SumOfDigits.java
C:\>java SumOfDigits
Enter the number :: 123
Sum of digits is :: 6

OUTPUT 2

C:\>javac SumOfDigits.java
C:\>java SumOfDigits
Enter the number :: 456
Sum of digits is :: 15