Java Coding Exercise 17

package com.company;

public class Main {

    public static void main(String[] args) {

        System.out.println(getEvenDigitSum(345345));
        System.out.println(getEvenDigitSum(-45345));



    }
    public static int getEvenDigitSum(int number) {
        int sum = 0;
        int lastDigit = 0;
        if (number < 0) {
            return -1;
        }



        do {
            lastDigit = number % 10;
            if (lastDigit % 2 == 0) {
                sum += lastDigit;

            }
            number = number /10;

        } while (number !=0  );
        return sum;
    }
}