> The compiler will not let me add Bla3 and Bla4 without throwing an error. In AS3, an overriding method must have exactly the same method signature as the method being overidden. The "signature" includes the number and type of the parameters, the return type, and the accessibility modifier (such as public, protected, private, etc.) If you need to add parameters, define a getBla2(). > it also expects you to data type the methods The type of a method specifies the data type of the value that it returns. If it doesn't return a value, declare it to have type :void. - Gordon
________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Donovan Sent: Sunday, November 11, 2007 10:58 AM To: [email protected] Subject: [flexcoders] classes I am not a Flex user, I don't know how to do that yet. But here is my problem anyways. I have been working on my final project for school. I set up all my classes. I was having difficulty with getting them to work. My base class contains all the data that is necessary to set up the all the class that follow. For example. package packageName{ //the base class public class A{ //the base class method public function getBla(bla1, bla2){ bla1 defined... bla2 defined... } } package packageName{ //on of the subclass's public class B extends A{ //subclass method override public function getBla(bla1, bla2, bla3, bla4 ){ bla1 and bla2 are inherited automatically bla3 and bla4 are defined } } package{ import flash.display.Sprite; import packageName.*; //the main class public class mainClassName extends Sprite{ private var theBla:B; public function mainClassName(){ theBla.getBla(); } } } Anyhow it didn't work. It seems that overriding does just that and only that, "overide". The compiler will not let me add Bla3 and Bla4 without throwing an error. Also I can't remove the keyword override because the compiler thinks I am trying to override the Method when all I am really trying to do is update the method. Another problem I am trying to work out is data types. Not only does flash expect you to data type your parameters, but it also expects you to data type the methods. I am sure that I have some sort of misunderstanding about this, but here is my flawed interpretation anyways. public function getBla(bla1:String, bla2:String):String{ bla1 = 'bla bla bla'; bla2 = 'bla bla bla'; } But what if I want to add a string and a numeric type in the same method? Then what what datatype do I declare my method to be? public function getBla(bla1:String, bla2:int):???{ bla1 = 'bla bla bla'; bla2 = 123; } And if I am actually successful overiding or updating or whatever a method in a subclass, then how do I data type the subclass or base class for that matter? //base class public function getBla(bla1:String, bla2:String):?String?{ bla1 = 'bla bla bla'; bla2 = 123; } //subclass public function getBla(bla1:String, bla2:String, bla3:int, bla4:int):???{ bla3 = 456; bla4 = 123; } Also, if you notice that some of my terminology is off, then please feel free to correct me. I am still a learning the basics. Thanks, Donovan
