[Cuis-dev] Financial Tools app

[Mark Volkmann]

Thanks Hernán! Makes sense. I made that change.

On Tue, Apr 1, 2025 at 10:41 AM Hernán Wilkinson <
hernan.wilkinson at 10pines.com> wrote:

> Hi Mark,
>  thank you for sharing!
>  I did not have time to look at the code but I evaluated the example and I
> saw something I wanted to tell you because it is a "minor common" mistake
> when coming from other programming languages. At the end of the
> FinancialHistoryView class>>#example it says:
>
>    FinancialHistoryView open: history.
>
>  Because self is FInancialHistoryView, you could just do:
>
>    self open: history.
>
>  It is better to send the message to self instead of to
> FinancialHistoryView because you reduce coupling and if somebody subclasses
> FinancialHistoryView, the #open message will be sent to the subclass, an
> expected behavior.
>  This minor mistake is common when coming for C++/Java/C# etc. where there
> is no "class side", just "static"... and in static methods there is no
> self/this.
>  Of course that maybe you copied that example from the book so we should
> say that to Adele hahahaha,... if that is the case, no way I'm going to do
> that! hahaha.
>
> Thank you and Cheers!
> Hernan
>
> On Tue, Apr 1, 2025 at 11:36 AM Mark Volkmann via Cuis-dev <
> cuis-dev at lists.cuis.st> wrote:
>
>> I recently finished reading the book "Smalltalk-80 The Interactive
>> Programming Language" by Adele Goldberg. Appendix 1 in the book presents a
>> "Financial Tools" app. I took a shot at implementing this in Cuis. You can
>> find my version here:
>> https://github.com/mvolkmann/Cuis-Smalltalk-FinancialTools.
>>
>> Perhaps someone will find this interesting. Better yet, perhaps someone
>> will look at the code and tell me what should be done differently.
>>
>> --
>> R. Mark Volkmann
>> Object Computing, Inc.
>> --
>> Cuis-dev mailing list
>> Cuis-dev at lists.cuis.st
>> https://lists.cuis.st/mailman/listinfo/cuis-dev
>>
>
>
> --
>
> *Hernán WilkinsonAgile Software Development, Teaching & Coaching*
> *Phone: +54-011*-4893-2057
> *Twitter: @HernanWilkinson*
> *site: http://www.10Pines.com <http://www.10pines.com/>*
> Address: Alem 896, Floor 6, Buenos Aires, Argentina
>


-- 
R. Mark Volkmann
Object Computing, Inc.
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