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hi I am writing a recursive method for the sum of a number, it works but I am unsure how it works and I would like to understand how it works? public static int sumDigits(int num) {                  if (num == 0) {             return (0);         }                      return (num%10) + sumDigits(num/10);     }

hi I am writing a recursive method for the sum of a number, it works but I am unsure how it works and I would like to understand how it works? public static int sumDigits(int num) {                  if (num == 0) {             return (0);         }                      return (num%10) + sumDigits(num/10);     }

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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hi I am writing a recursive method for the sum of a number, it works but I am unsure how it works and I would like to understand how it works?

public static int sumDigits(int num) {
        
        if (num == 0) {
            return (0);
        }
        
            return (num%10) + sumDigits(num/10);
    }

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