Question

Print sum of digits of a number using recursion

				
					ENTER THE NUMBER
1234
SUM OF DIGITS OF 1234 IS 10

Share code with your friends

Code

				
					import java.util.Scanner;
public class sumOfDigits
{
    public static int CalculateSumOfDigits(int num)
    {
        if(num==0)
        {
            return 0; 
        }
        else
        {
            return num%10 + CalculateSumOfDigits(num/10);   
        }
    }

    public static void main()
    {
        int num=0,sum=0;
        Scanner sc=new Scanner(System.in);
        System.out.println("ENTER THE NUMBER");
        num=sc.nextInt();
        sum=CalculateSumOfDigits(num);
        System.out.println("SUM OF DIGITS OF "+num+" IS "+sum);
    }
}