Add new method to the children class

 


package{
  import flash.display.Sprite;
  
  public class Main extends Sprite{
    public function Main(){

        var bInstance = new B(  );
        bInstance.m();       // Displays: Method m(  ) was called
        bInstance.n();       // Displays: Method n(  ) was called
        trace(bInstance.v);  // Displays: 10


    }
  }
}
class A {
  public var v = 10;

  public function m (  ) {
    trace("Method m(  ) was called");
  }
}

class B extends A {
  public function n (  ) {
    trace("Method n(  ) was called");
  }
}

Method m(  ) was called
Method n(  ) was called
10

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1.	Extends the super class
2.	A Primer on Inheritance
3.	Three-level inheritance
4.	Static Methods and Static Variables Not Inherited
5.	Constructor Methods in Subclasses
6.	If a subclass does not define a constructor, ActionScript automatically creates one and adds a super call as its only statement.
7.	Call super constructor with parameter
8.	Class Scope: Code placed at the top-level of a class body resides in that class's scope.
9.	You can call the superclass implementation from the subclass implementation using the super keyword to reference the superclass:

Add new method to the children class : Inheritance « Class « Flash / Flex / ActionScript

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