public function __construct(array $inputs) {

        $this->arrayData = $inputs;

        foreach ($inputs as $number) {
            $inputs = $number;

        if (is_numeric($number) === FALSE) {

            throw new Exception("Input array is not numeric");
        }

        if ($inputs < $number) {

            throw new Exception("Input array is less than zero");
        }
        $this->arrayData = $inputs;
    }

    }