в 09:19, 26 мая 2010

2010-05-26T09:19:12Z

Admin: 1 версия

2010-05-26T08:14:46Z

1 версия

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==If you want the toString( ) method of Subclass to return a different value, you"ll need to override it in the subclass==



<source lang="java">

class Superclass {
public function Superclass( ) {}
public function toString( ):String {
return "Superclass.toString( )";
}
}
class Subclass extends Superclass {
public function Subclass( ) {}
override public function toString( ):String {
return "Subclass.toString( )";
}
}
</source>

==Implementing Subclass Versions of Superclass Methods==



<source lang="java">

By default, Subclass inherits the toString( ) method as it"s implemented in Superclass:
package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var example:Subclass = new Subclass( );

trace(example.toString( )); // Displays: Superclass.toString( )
}
}
}
class Superclass {
public function Superclass( ) {}
public function toString( ):String {
return "Superclass.toString( )";
}
}
class Subclass extends Superclass {
public function Subclass( ) {}
}
</source>

==Polymorphism Demo==



<source lang="java">

class UnpaidIntern extends Employee {
override public function receivePayment():Number {
return 0;
}
}
class Manager extends Employee {

override public function receivePayment():Number {
return baseSalary*3;
}
}
class Engineer extends Employee {
override public function receivePayment():Number {
return this.baseSalary*2;
}
}
class Employee {
internal var baseSalary:Number = 1000;
public function receivePayment():Number {
return this.baseSalary;
}
}
</source>

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Flash / Flex / ActionScript/Class/polymorphism - История изменений

в 09:19, 26 мая 2010

Admin: 1 версия