TYPESCRIPT

add digits java

    public static int sumDigits(int number){
        if (number < 10) return -1;
        int sum = 0;
        while (number > 10){
             sum += number % 10;
            number /= 10;
        }
        return sum + number;

add digits java

public static void main(String[] args) {
        int num = 321;
        int sum = 0;
        while (num > 0) {
            sum = sum + num % 10;
            num = num / 10;
        }
        System.out.println(sum); 
}

sum of digits java

   public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int num = input.nextInt();

        int sum = 0;

        while (num > 0) {
            sum += num % 10;
            num /= 10;
        }
        System.out.println("sum of digits: " + sum);
    }