Question

How to sum the digits of a number using recursion in Java

Answer 1

public class MyClass {
    public static int sum_recursion(int n) {
        if (n != 0) {
            return (n % 10 + sum_recursion(n / 10));
        }
        else {
           return 0;
        }
    }
    public static void main(String args[]) {
        System.out.println(sum_recursion(12345));
    }
}
     
     
     
     
/*
run:
     
15
     
*/

 

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