Java - Coding Challenge - Sum of All Even Digits

gistfile1.txt

    public static int getEvenDigitSum(int number){

        if (number < 0){
            return -1;
        }

        int sum=0;
        for (int i = number; i !=0; i /= 10){
            if ((i%10)%2==0){
                sum+=i%10;
            }
        }
        return sum;
    }