From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=unavailable autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!mx02.eternal-september.org!.POSTED!not-for-mail From: "Jeffrey R. Carter" Newsgroups: comp.lang.ada Subject: Re: was Ada 83 in fact object oriented ? Date: Thu, 24 Sep 2015 16:47:59 -0700 Organization: Also freenews.netfront.net; news.tornevall.net; news.eternal-september.org Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Injection-Date: Thu, 24 Sep 2015 23:46:04 +0000 (UTC) Injection-Info: mx02.eternal-september.org; posting-host="5f712d38494dbb84b962c77c0cdaaf11"; logging-data="27440"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18ZueEa5f+5sqidNAzkcSGZ6HcgjYBwv0A=" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 In-Reply-To: X-Mozilla-News-Host: news://freenews.netfront.net Cancel-Lock: sha1:QP3yoVE1Mlx+RL2yEx+nedmH9DY= Xref: news.eternal-september.org comp.lang.ada:27817 Date: 2015-09-24T16:47:59-07:00 List-Id: On 09/24/2015 03:23 PM, halfmaddad@gmail.com wrote: > > OO is a huge topic but I am wondering what are the basic requirements for a language to be said to support object orientation. > > Ada 83 had packages and one package could be instantiated more then one time. > > Is it fair to say that basic class and methods were therefore supported? Object orientation is a design characteristic. What is usually called "object-oriented programming" is in fact programming by extension. There is nothing intrinsically object oriented about it. I have seen many programs using programming by extension that were not object oriented at all, and many object-oriented programs that do not use programming by extension. As someone who wrote a lot of object-oriented programs in Ada 83 I can confirm that it is as suitable for implementing an object-oriented design as any other language, and more so than most. -- Jeff Carter "I did not rob a bank. If I'd robbed a bank, everything would be great. I tried to rob a bank, is what happened, and they got me." Take the Money and Run 139