Simon Krenger

For an university assignment, I had to implement a recursive function to calculate the digit sum of a given number. I place my solution here for my own reference:

public static int digitSum(int n) {
	if(n < 10)
		return n;
	else
		return n % 10 + digitSum(n / 10);
}

This code can also be found in the GitHub repository that I am keeping for university: ChecksumTool.java