Sum of digits in number using recursion in java

Sample Program:-

public class SampleProgram {  
      static int sum = 0;  
      public static void main(String[] args) {  
           int number = 1234;  
           System.out.println("sum of digits : " + sumOfDigits(number));  
      }  
      private static int sumOfDigits(int number) {  
           if (number == 0) {  
                return sum;  
           } else {  
                sum = sum + (number % 10);  
                sumOfDigits(number / 10);  
           }  
           return sum;  
      }  
 }  

Output:-

 sum of digits : 10  

Enjoy Coding.