Java - Coding Challenge - Do Two Numbers Share a Digit?

gistfile1.txt

   public static boolean hasSharedDigit(int num1, int num2) {

        if ((num1 < 10) || (num1 > 99) ||
                (num2 < 10) || (num2 > 99)) {
            return false;
        }
        
        for (int i = num1; i != 0; i /= 10) {
            for (int j = num2; j != 0; j /= 10) {
                if (i%10 == j%10) {
                    return true;
                }
            }
        }
        return false;
    }