PHP calculator (Factory mode)-PHP source code

PHP calculator (Factory mode) php code

abstract class Calculator        {        private $number1;        private $number2;        public $result;/** * @return the $number2 */public function getNumber2() {return $this->number2;}/** * @param field_type $number2 */public function setNumber2($number2) {$this->number2 = $number2;}/** * @return the $number1 */public function getNumber1() {return $this->number1;}/** * @param field_type $number1 */public function setNumber1($number1) {$this->number1 = $number1;}abstract function get_result(); }            class Add extends Calculator{public function get_result($number1,$number2){return $number1+$number2;}}class Sub extends Calculator{public function get_result($number1,$number2){return $number1-$number2;}}class Mul extends Calculator{public function get_result($number1,$number2){return $number1*$number2;}}class Div extends Calculator{public function get_result($number1,$number2){return $number1/$number2;}}class Factory{public function Building($notes){if($notes=="+"){$add=new Add();return $add;}elseif ($notes=="-"){$sub=new Sub();return $sub;}elseif($notes=="*"){$mul=new Mul();return $mul;}else{$p=new Div();return $p;}}}