Beginners March 2008

beginners@lists.squeakfoundation.org

66 participants
66 discussions

New to SmallTalk and Squeak
by Nathan Lane 28 Mar '08

28 Mar '08

Hi, I have been interested in programming and thus a hobbyist since I was nine years old in 1989. Since then I have programmed many programs using various languages including, but not limited to, C, C++, Pascal, Assembly, Java, Ruby, Python, Perl, C#, VBScript, Visual Basic, Batch, Powershell, BASH, AWK, SED, PHP, HTML, JavaScript, JScript, CSS, XHTML, and XML. But I've never used SmallTalk or Squeak, and it's a bit confusing to me as to how to develop a program. I understand that the Squeak! environment is a development environment to some extent, right? So where do I start? Thanks. -- Nathan Lane Home, http://www.nathandelane.com Mirror, http://nathandelane.awardspace.com

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Install Squeak 3.9 or 3.10 in a Core 2 Duo (64 bits) with Ubuntu
by Juan Carlos Bresesti Bosch 28 Mar '08

28 Mar '08

How can i do this, i'm absolute beginner... JC

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Design best practice : put state-independent methods onclass side?
by David Mitchell 28 Mar '08

28 Mar '08

(forgot to copy the list) Classes are certainly well known, but not the only way to get a well known object. My pragmatic issue with using class side methods for Singletons is that it is a bunch of work to refactor the class side behavior to instance side later. Look at the original PWS server for a squeak specific example. My design issue is that classes are for making instances (technically for defining behavior of instances). Making them the building block of the program means that I'm giving them extra responsibility. I like to keep the responsibility list as small as possible. (Someone walked off with my Design Patterns Smalltalk Companion, which wrote about these issues better than I can.) On Tue, Mar 25, 2008 at 2:51 PM, Ramon Leon <ramon.leon(a)allresnet.com> wrote: > > I'm guessing you like that the class methods can be invoked > > easily from the class name. What you want is a well known object. > > Like a class? > > > > I wouldn't use a class object just to create a well known > > object. I'd probably start with a Singleton and work from there. > > Like a class? Classes are singletons, what do you have against using them > as such? > > Ramon Leon > http://onsmalltalk.com > >

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Traits (Was [Newbies] Design best practice : put state-independent methodsonclass side?)
by Rob Rothwell 27 Mar '08

27 Mar '08

On Tue, Mar 25, 2008 at 8:02 PM, Matthew Fulmer <tapplek(a)gmail.com> wrote: > No. Traits are units of behavior that can be shared among > objects. So...if in a general sense a trait has no knowledge of the object it will be attached to, is it common practice to create traits to be used only by a specific group of objects so that some common behaviour can be assumed? Or at that point are you just creating a subclass and should just go ahead and duplicate the methods? As a trivial example, say you have Dog and Rock, and you want to make a Pet out of both of them even though they both have different base classes (like Animal or Mineral). Furthermore, Pet>>careInstructions needs to use "self foodRequirements," which you may provide for a Dog or a Rock, but not for all objects. In other words, would you expect to see PetTraits that are meant to be used with Dog or Rock subclasses only? Thanks! Rob

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Design best practice : put state-independent methods on class side?
by itsme213 26 Mar '08

26 Mar '08

I have some methods that currently refer to iVars, called from other methods of the same class. I need similar functionality in other classes, not related by inheritance, and want to keep it DRY. If I move the iVar references into explicit method args they can be easily re-located and shared. Is it then good or bad practice to take a such collection of related state-independent methods (they don't depend on any iVar) and put them on the class-side of some suitable class? My options and concerns: - I could move them up the hierarchy on the instance side but sometimes hit single inheritance limits - I could use traits for these but am unclear about the future of traits in Squeak - I can put on the class side and call easily from instance-side methods, but is this OK practice? Thanks, Sophie

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The Weekly Squeak Summary No. 17: Jan 13 - Mar 22, 2008
by Michael Haupt 25 Mar '08

25 Mar '08

Dear Squeakers, welcome to the Easter edition of The WeeklySqueakSummary, an irregular traffic-dependent report on what's going on in the world of Squeak based on the WeeklySqueak blog. Highlights of the past weeks: There is a whole bunch of very interesting (not just software) releases... Squeak 3.10 [23], Sophie 1.0 [24], a multi-threaded Squeak VM called Hydra [14], the Squeak by Example book's second edition (nowadays, people tend to call such things 2.0 or the like... I prefer to stick with the old-fashioned word "edition") [19], and a very extensive book covering the (much more relevant than you might think) topic of hashing [15]. The Squeak Foundation has a new board [17] - congratulations to all board members (and to the community for their choices)! Last time, I accidentally posted a "link" to a demo video of the Lively kernel - it was just a link to an announcement. This happens if you don't read carefully. :-) The actual video has since been released [20]. Two notifications of acceptance: there will be more Google Summer of Code projects related to Squeak [22], and the Squeak VM is now officially deemed open source by the Debian maintainers [21]. That last topic (licensing issues) directly relates to the last "hot" topic: the Software Freedom Law Center has released a guide to legal issues as occurring in the context of open-source projects [11]. It's an interesting read, but unfortunately very much focused on the legal situation in the United States of America - well, you probably can't blame them. The past weeks' news items: [1] Qwaq is Hiring! http://news.squeak.org/2008/01/16/qwaq-is-hiring/ [2] Squeak now running on Nokia N810 http://news.squeak.org/2008/01/18/squeak-now-running-on-nokia-n810/ [3] Self-Sustaining Systems *Call for Papers* http://news.squeak.org/2008/01/21/self-sustaining-systems-call-for-papers/ [4] Brought to you by ESUG! http://news.squeak.org/2008/01/23/brought-to-you-by-esug/ [5] Dynamic Languages Symposium (DLS) 2008 - Call For Papers http://news.squeak.org/2008/01/25/dynamic-languages-symposium-dls-2008-call… [6] Learn Smalltalk And See the World! http://news.squeak.org/2008/01/26/learn-smalltalk-and-see-the-world/ [7] Immersive Education Summit Ad-Hoc Meeting http://news.squeak.org/2008/02/03/immersive-education-summit-ad-hoc-meeting/ [8] The Golight: Tool Support for Test-Driven Development http://news.squeak.org/2008/02/07/the-golight-tool-support-for-test-driven-… [9] XO in the US Virgin Islands http://news.squeak.org/2008/02/12/xo-in-the-us-virgin-islands/ [10] 16th International Smalltalk Joint Conference *Call for Contributions* http://news.squeak.org/2008/02/14/16th-international-smalltalk-joint-confer… [11] IANAL - But they are! SFLC Guide to FOSS Legal Issues http://news.squeak.org/2008/02/15/ianal-but-they-are-sflc-guide-to-foss-leg… [12] International Squeak Live Video Conference Between Nepal and Japan http://news.squeak.org/2008/02/17/international-squeak-live-video-conferenc… [13] Randal Schwartz Talks With Leo about Squeak, EToys and OLPC http://news.squeak.org/2008/02/20/randal-schwartz-talks-with-leo-about-sque… [14] Qwaq releases Hydra multi-core Squeak VM http://news.squeak.org/2008/02/21/qwaq-releases-hydra-multi-core-squeak-vm/ [15] Hashing in Smalltalk http://news.squeak.org/2008/02/25/hashing-in-smalltalk/ [16] Don't forget to vote! http://news.squeak.org/2008/03/06/dont-forget-to-vote/ [17] The Squeak Foundation Board 2008 http://news.squeak.org/2008/03/09/the-squeak-foundation-board-2008/ [18] Talk on "Newspeak" today http://news.squeak.org/2008/03/11/talk-on-newspeak-today/ [19] Squeak by Example, 2.0! http://news.squeak.org/2008/03/12/squeak-by-example-20/ [20] Dan Ingalls demos Lively at Google http://news.squeak.org/2008/03/14/dan-ingalls-demos-lively-at-google/ [21] Squeak VM now in Debian distro http://news.squeak.org/2008/03/17/squeak-vm-now-in-debian-distro/ [22] Squeak accepted into Google Summer of Code 08 http://news.squeak.org/2008/03/18/squeak-accepted-into-google-summer-of-cod… [23] Squeak 3.10 now released! http://news.squeak.org/2008/03/21/380/ [24] Sophie multimedia authoring environment hits 1.0 http://news.squeak.org/2008/03/22/sophie-multimedia-authoring-environment-h… You can find this and much more on The WeeklySqueak blog, the newsblog dedicated to the world of Squeak:http://news.squeak.org/ Subscribe to the WeeklySqueak RSS feed: http://news.squeak.org/feed/ Happy squeaking, Michael

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Summer of Code - Students submissions now open
by Giovanni Corriga 25 Mar '08

25 Mar '08

Hi all, Student registration for the Google Summer of Code 2008 has just opened. All students interested in submitting an application should do so by going to http://code.google.com/soc/2008/student_step1.html and following the instructions in that page. The webform has two sections: - the first is an Abstract, that is a short description of the project that you'd like to submit. This will be used in Google's public GSoC website; if you need some examples, look at Squeak's project from last year: http://code.google.com/soc/2007/squeak/about.html . - the second version is a Detailed Description. In this section you should add a more extensive description of your project, with details on the problem that you'd like to solve, technical aspects, an approximate schedule/roadmap etc. You should also add a short description of yourself and of your Smalltalk skills. As happened last year, previous Smalltalk knowledge is not needed, provided you agree to learn the language and the environment before the beginning of the coding phase ;) Ciao, Giovanni

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Re: [Newbies] Project Ideas
by David Zmick 25 Mar '08

25 Mar '08

ohh, Thank You thats a very good website!! Thank you very much dz On Mon, Mar 24, 2008 at 10:40 AM, Ken G. Brown <kbrown(a)mac.com> wrote: > You might want to have a look at: > A Squeak Development Example > Stephan B Wessels > <http://squeak.preeminent.org/copyFilesTutorial/index.html> > > Or his main page: > <http://squeak.preeminent.org/> > > for some ideas. > > Ken G. Brown > > At 7:12 PM -0700 3/22/08, beginners-request(a)lists.squeakfoundation.orgapparently wrote: > >Date: Sat, 22 Mar 2008 14:37:44 -0500 > >From: "David Zmick" <dz0004455(a)gmail.com> > >Subject: [Newbies] Project Ideas > >To: "Squeak Beginners List" <beginners(a)lists.squeakfoundation.org>, > > "Squeak-dev List" <squeak-dev(a)lists.squeakfoundation.org> > >Message-ID: > > <c06c4b6b0803221237mfb70d51o529b5706c09d2b23(a)mail.gmail.com> > >Content-Type: text/plain; charset="iso-8859-1" > > > >This has been sent to both the Squeak-dev list and the squeak beginners > list > > > >For those of you that don't know me, I am a 14 year old programmer. I > want > >to write something useful, but I don't have any ideas! I have always had > >this problem, with any language, and, all of the problems that have been > >going around on the mailing lists seem to hard for me to work on, as I am > >not very proficient as a developer and I am looking for some easy > beginner > >projects! Thank you in advance! > > > >-- > >David Zmick > >/dz0004455\ > >http://dz0004455.googlepages.com > >

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Re: [Newbies] Project Ideas
by Ken G. Brown 24 Mar '08

24 Mar '08

You might want to have a look at: A Squeak Development Example Stephan B Wessels <http://squeak.preeminent.org/copyFilesTutorial/index.html> Or his main page: <http://squeak.preeminent.org/> for some ideas. Ken G. Brown At 7:12 PM -0700 3/22/08, beginners-request(a)lists.squeakfoundation.org apparently wrote: >Date: Sat, 22 Mar 2008 14:37:44 -0500 >From: "David Zmick" <dz0004455(a)gmail.com> >Subject: [Newbies] Project Ideas >To: "Squeak Beginners List" <beginners(a)lists.squeakfoundation.org>, > "Squeak-dev List" <squeak-dev(a)lists.squeakfoundation.org> >Message-ID: > <c06c4b6b0803221237mfb70d51o529b5706c09d2b23(a)mail.gmail.com> >Content-Type: text/plain; charset="iso-8859-1" > >This has been sent to both the Squeak-dev list and the squeak beginners list > >For those of you that don't know me, I am a 14 year old programmer. I want >to write something useful, but I don't have any ideas! I have always had >this problem, with any language, and, all of the problems that have been >going around on the mailing lists seem to hard for me to work on, as I am >not very proficient as a developer and I am looking for some easy beginner >projects! Thank you in advance! > >-- >David Zmick >/dz0004455\ >http://dz0004455.googlepages.com >

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[ANN] New FunSqueak 6
by Edgar J. De Cleene 24 Mar '08

24 Mar '08

I put a new FunSqueak3.10alpha.6.image. To list of previous packages, I add VMmaker and SystemTracer2. For loading VMmaker , I first must load Speech-Klatt.st. Was last versions for 3.8, so take easy until owners update his packages. I remember FunSqueak 5 have RoelTyper,eCompletion,Scheduler,Seaside,Pier,Magritte. Server is running To web team , please update the info and links. http://ftp.squeak.org/various_images/FunSqueak/FunSqueak3.10alpha.6.zip Enjoy and send feedback Edgar

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Beginners March 2008