Java.Algo.Get sum of Digits from int

example

    public int minElement(int[] nums) {
        int res = Integer.MAX_VALUE;
        for (int num : nums) {
            res = Math.min(res, getSumDigits(num));
        }
        return res;
    }

    private int getSumDigits(int num) {
        int sum = 0;
        while (num != 0) {
            sum += num % 10;
            num /= 10;
        }
        return sum;
    }