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From: Mike  <Mike@newsguy.com>
Subject: Re: A question for my personal knowledge.
Date: 1999/05/13
Message-ID: <7hfctj$1kb4@drn.newsguy.com>#1/1
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References: <1VEZ2.1515$I51.88140@carnaval.risq.qc.ca>
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Organization: Newsguy News Service [http://www.newsguy.com]
Newsgroups: comp.lang.ada
Date: 1999-05-13T00:00:00+00:00
List-Id: <comp.lang.ada>

In article <373AC668.4824FF07@decada.enet.dec.com>, Mike says...
 
>If I were to teach programming today, I'd choose Ada 95 as the vehicle. 
>It is a serious detriment to pedagogy (and to programming!) to muddle
>together the vehicle of polymorphism and the vehicle of abstraction as
>C++ does.  (This impinges on the discussion in another thread, which I
>will nevertheless refrain from joining.)  In case it is inobvious to
>some what I'm referring to, I mean the tagged type for polymorphism and
>the package for abstraction; in C++ these both become classes.

And what is wrong with that? a class serves as abstraction and polymorphism.
it is simpler really.

Ada OO mechanism is not simple and I find it confusing. a class is the
most basic concept in OO, and Ada does not have it. No wonder all heavely
used OO languages today use the class concept (C++, Java) even Simula
the original OO language used a class to represent objects with. All except
Ada does it different. 

Mike