Difference between revisions of "6CC001 Workshop - week 02"
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[[Main Page]] >> [[CP3207|Web Application Development]] >> [[Web Application Developpment - Workbook|Workbook]] >> Week 02 | [[Main Page]] >> [[CP3207|Web Application Development]] >> [[Web Application Developpment - Workbook|Workbook]] >> Week 02 | ||
+ | |||
+ | <pre> | ||
+ | class ShopProduct | ||
+ | { | ||
+ | public $title; | ||
+ | public $producerMainName; | ||
+ | public $producerFirstName; | ||
+ | public $price; | ||
+ | |||
+ | function __construct($title, $firstName, $mainName, $price) | ||
+ | { | ||
+ | $this->title = $title; | ||
+ | $this->producerFirstName = $firstName; | ||
+ | $this->producerMainName = $mainName; | ||
+ | $this->price = $price; | ||
+ | } | ||
+ | |||
+ | public function getProducer() | ||
+ | { | ||
+ | return "$this->producerFirstName | ||
+ | $this->producerMainName"; | ||
+ | } | ||
+ | |||
+ | public function getProductDetails() | ||
+ | { | ||
+ | $s = "$this->title ($this->producerFirstName $this->producerMainName)"; | ||
+ | return $s; | ||
+ | } | ||
+ | } | ||
+ | </pre> | ||
+ | |||
+ | <pre> | ||
+ | class CdProduct extends ShopProduct | ||
+ | { | ||
+ | public $playLength; | ||
+ | |||
+ | // Let's override the constructor | ||
+ | function __construct($title, $firstName, $mainName, $price, $playLength) | ||
+ | { | ||
+ | parent::__construct($title, $firstName, $mainName, $price); | ||
+ | $this->playLength = $playLength; | ||
+ | } | ||
+ | |||
+ | function getPlayLength() | ||
+ | { | ||
+ | return $this->playLength; | ||
+ | } | ||
+ | |||
+ | // Let's override getProductDetails | ||
+ | function getProductDetails() | ||
+ | { | ||
+ | $s = parent::getProductDetails(); | ||
+ | $s.= " - playing time : $this->playLength"; | ||
+ | return $s; | ||
+ | } | ||
+ | } | ||
+ | </pre> | ||
+ | |||
+ | <pre> | ||
+ | class BookProduct extends ShopProduct | ||
+ | { | ||
+ | public $numPages; | ||
+ | |||
+ | // Let's override the constructor | ||
+ | function __construct($title, $firstName, $mainName, $price, $numPages) | ||
+ | { | ||
+ | parent::__construct($title, $firstName, $mainName, $price); | ||
+ | $this->numPages = $numPages; | ||
+ | } | ||
+ | |||
+ | function getNumberOfPages() | ||
+ | { | ||
+ | return $this->numPages; | ||
+ | } | ||
+ | |||
+ | // Let's override getProductDetails | ||
+ | function getProductDetails() | ||
+ | { | ||
+ | $s = parent::getProductDetails(); | ||
+ | $s.= " - number of pages : $this->numPages"; | ||
+ | return $s; | ||
+ | } | ||
+ | } | ||
+ | </pre> | ||
+ | |||
+ | <pre> | ||
+ | $CD1 = new CdProduct("Back to black", "Amy", "Winehouse", 7.99, 63); | ||
+ | $CD2 = new CdProduct("Back to bedlam", "James", "Blunt", 7.99, 51); | ||
+ | |||
+ | $Book1 = new BookProduct("1984", "George", "Orwell", 8.99, 352); | ||
+ | $Book2 = new BookProduct("Never Let", "Kazuo", "Ishiguro", 7.99, 276); | ||
+ | |||
+ | echo $CD1->getProductDetails()."<br>"; | ||
+ | echo $CD2->getProductDetails()."<br>"; | ||
+ | echo $Book1->getProductDetails()."<br>"; | ||
+ | echo $Book2->getProductDetails()."<br>"; | ||
+ | </pre> |
Revision as of 13:48, 11 September 2009
Main Page >> Web Application Development >> Workbook >> Week 02
class ShopProduct { public $title; public $producerMainName; public $producerFirstName; public $price; function __construct($title, $firstName, $mainName, $price) { $this->title = $title; $this->producerFirstName = $firstName; $this->producerMainName = $mainName; $this->price = $price; } public function getProducer() { return "$this->producerFirstName $this->producerMainName"; } public function getProductDetails() { $s = "$this->title ($this->producerFirstName $this->producerMainName)"; return $s; } }
class CdProduct extends ShopProduct { public $playLength; // Let's override the constructor function __construct($title, $firstName, $mainName, $price, $playLength) { parent::__construct($title, $firstName, $mainName, $price); $this->playLength = $playLength; } function getPlayLength() { return $this->playLength; } // Let's override getProductDetails function getProductDetails() { $s = parent::getProductDetails(); $s.= " - playing time : $this->playLength"; return $s; } }
class BookProduct extends ShopProduct { public $numPages; // Let's override the constructor function __construct($title, $firstName, $mainName, $price, $numPages) { parent::__construct($title, $firstName, $mainName, $price); $this->numPages = $numPages; } function getNumberOfPages() { return $this->numPages; } // Let's override getProductDetails function getProductDetails() { $s = parent::getProductDetails(); $s.= " - number of pages : $this->numPages"; return $s; } }
$CD1 = new CdProduct("Back to black", "Amy", "Winehouse", 7.99, 63); $CD2 = new CdProduct("Back to bedlam", "James", "Blunt", 7.99, 51); $Book1 = new BookProduct("1984", "George", "Orwell", 8.99, 352); $Book2 = new BookProduct("Never Let", "Kazuo", "Ishiguro", 7.99, 276); echo $CD1->getProductDetails()."<br>"; echo $CD2->getProductDetails()."<br>"; echo $Book1->getProductDetails()."<br>"; echo $Book2->getProductDetails()."<br>";