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Posted by Jerry Stuckle on 12/18/52 11:51
Tony Marston wrote:
> "Jerry Stuckle" <jstucklex@attglobal.net> wrote in message
> news:Teadndafls4zHz3ZnZ2dnUVZ_v-dnZ2d@comcast.com...
>
>>Tony Marston wrote:
>>
>>>"Jerry Stuckle" <jstucklex@attglobal.net> wrote in message
>>>news:7fCdnbmMO7sjJQLZnZ2dnUVZ_tidnZ2d@comcast.com...
>>>
>>>
>>>>Tony Marston wrote:
>>>>
>>>>
>>>>>"Jerry Stuckle" <jstucklex@attglobal.net> wrote in message
>>>>>news:tMydnfBVrd_suQLZnZ2dnUVZ_o6dnZ2d@comcast.com...
>>>>>
>>>>>
>>>>>
>>>>>>Tony Marston wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>>>"Jerry Stuckle" <jstucklex@attglobal.net> wrote in message
>>>>>>>news:ceOdneMn6a1vTwPZnZ2dnUVZ_oWdnZ2d@comcast.com...
>>>>>>>
>>>>>
>>>>><snip>
>>>>>
>>>>>>>OO is about encapsulation, polymorphism and inheritance. Message
>>>>>>>passing is incidental.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>>And YOU are the one "bastardizing" OO. Your sloppy approach to
>>>>>>>>programming is just what *real* OO is designed to eliminate. And it
>>>>>>>>makes the coding much more maintainable, expandable and modifiable.
>>>>>>>
>>>>>>>
>>>>>>>Not the way some people use OO. They deliberately make it more
>>>>>>>complicated than it need be, while I keep it as simple as possible.
>>>>>>>
>>>>>>
>>>>>>And that is where you are 100% wrong. Message passing is an integral
>>>>>>part of both object-based and object-oriented languages.
>>>>>>
>>>>>>One bit of wisdom, Tony. Tis better to remain silent and have everyone
>>>>>>thing you might be a fool than to open your mouth and remove all doubt.
>>>>>>
>>>>>>In the OO world you have removed all doubt.
>>>>>
>>>>>
>>>>>The three principles of OO are encapsulation, polymorphism and
>>>>>inheritance. Message passing does not appear in that list, so it is a
>>>>>minor detail.
>>>>>
>>>>
>>>>And that's where you are totally wrong.
>>>
>>>
>>>Excuse me? After performing a google search on OOP all I see quoted time
>>>after time are the three basic principles - encapsulation, inheritance
>>>and polymorphism - so how could I possibly be wrong?
>>>
>>
>>Maybe if you check some sites which know what they're talking about -
>>instead of your own. Try some like:
>>
>>http://www.fincher.org/tips/General/SoftwareEngineering/ObjectOrientedDesign.shtml
>>http://en.wikipedia.org/wiki/Object-oriented_programming
>>http://www.awprofessional.com/bookstore/product.asp?isbn=0201824191&redir=1
>>http://www.objectfaq.com/oofaq2/body/basics.htm
>>
>>Just for starters.
>
>
> I got my information from these sites:
>
> http://c2.com/cgi/wiki?ObjectOriented
> http://c2.com/cgi/wiki?PolymorphismEncapsulationInheritance
> http://en.wikipedia.org/wiki/Object-oriented_programming
> http://www.phpbuilder.com/columns/luis20000420.php3
>
> All I see about message passing is that it is how one object communicates
> with another. This is a trivial detail compared with encapsulation,
> inheritance and polymorphism. Even non-OO languages can pass messages, so
> what's so important about it?
>
Gee, and wiki's are the Last Word? ROFLMAO! Try some real experts - like
Booch, Iverson and Rumbaugh, for instance. These guys have been recognized as
experts throughout the world for upwards of 20 years - instead of some guy who
posted in a wiki.
However, wikipedia (which I also mentioned because it might meet your level of
intelligence), says under "Fundamental Concepts":
"Method (also known as message) — how code can use an object of some class. A
method is a form of subroutine operating on a single object. Methods may be
divided into queries returning the current state and commands changing it: a Dog
could have a query Age to say how old it is, and command chase (Rabbit target)
to start it chasing a rabbit. A method may also do both, but some authorities
(e.g. Bertrand Meyer) recommend they be kept separate. Sometimes access to the
data of an object is restricted to the methods of its class."
It is important because that's how you communicate with objects. It's the
interface, which is public, instead of the implementation, which is private.
But if you understood OO as well as you claim you would understand that.
--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================
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