Beginners July 2006

beginners@lists.squeakfoundation.org

70 participants
63 discussions

Will EToys Teach Me to Program in Squeak?
by Greg Smith 07 Jul '06

07 Jul '06

Gentlefolk: I am entering the field of programming having no prior experience. I'm not a kid, age-wise, anyway. It seems every programming language I have encountered makes assumptions about my prior knowledge, (that I have some), and the teachers of these languages use strange and alien terminology to describe actions that I am already unfamiliar with. The teachers, (online tutorials), use terminology that is familiar to themselves to explain new concepts, but is unfamiliar and vague to me. For these reasons I am looking toward using the EToys, children's software, as a means to obtain a total introduction to programming, in general, and to Squeak, specifically. Is this the self-education route I should take, or is there a better "adult" pathway for learning? I actually wish that EToys was introduced and structured so that it specifically was aimed at teaching me to program rather than to teach me Mathematics and Science. But maybe it will do both. Please let me know, Greg Smith

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API: Control Squaek by Excel
by Loew Uwe (DS/EES1) 05 Jul '06

05 Jul '06

Hello community, is it possible, to call a method of a Squeak class by another windows programm, e.g. Excel, via an API interface? Thank you very much. Best regards Uwe Loew Testsystems -------------------------------------------------------- Robert Bosch GmbH Diesel Systems, Engineering ECU Software (DS/EES1) Postfach 30 02 20 - 70442 Stuttgart - GERMANY Tel: +49 711 811-45743 Fax: +49 711 811-31800 uwe.loew(a)de.bosch.com www.bosch.com

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storeString vs. printString
by Mathieu SUEN 04 Jul '06

04 Jul '06

Hi squeakers, I have an extremly simple question. What is the diffrence between #storeString and #printString? In ArrayTest I suggest to add the following statement: self assert: literalArray storeString = '#(1 true 3 #four)' And it don't pass the test (failure) This is because the #storOn: don't do the write things (i.e. add a space at the end of the Array #(1 2 3 ) vs. #(1 2 3). I think that #printOn: do a better Job. Don't he? cheers, Math

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help: how to totally clear my squeak + seaside install, and re-install (on XP)
by itsme213 04 Jul '06

04 Jul '06

I have somehow managed to mess up my squeak and seaside install. Don't know how, don't ask, yes I am the quintessential bumbling beginer. What is the simplest way to wipe the slate clean (including any Windows registry cruft lying around, in case that matters), and come back up with a pristine Seaside 2.6? Any (pointers to) a best-practice directory structure so that the various cache, sm, package directories etc. don't clobber each other e.g. Base Squeak Seaside MyProject ? Thanks.

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newbie trouble building Squeak VM on Mac
by Michael Haupt 03 Jul '06

03 Jul '06

Hi, it's my first attempt ever to actually build a Squeak VM, hence the crosspost to both the beginners' and VM dev lists. I have checked out the latest VM sources from svn today, run the configure script (for the unix platform - I have a G4 PowerBook running Mac OS X 10.4.7), and issued "make Squeak.app". Eventually, the build stops with an error: /Users/haupt/squeakvm/squeak-svn/platforms/unix/plugins/B3DAcceleratorPlugin/sqUnixOpenGL.h:26:7: error: #error *** cannot find gl.h Huh. Apparently the configure script thought there was OpenGL on the machine, didn't it? Anyway, where / how can I obtain that file or exclude OpenGL support? Thanks in advance, Michael

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Shouldn't 7r6.5 be the same as 7r65 * 0.1
by Klaus D. Witzel 03 Jul '06

03 Jul '06

Would some good soul please explain what Number readFrom: '7r6.5' should return. It is apparently not the same as 7r65 * 0.1 and before I dig deeper (why does this happen, is it a bug or feature) I'd appreciate that someone confirms or rejects (bug | feature). Thank you. /Klaus

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Plain file editing
by itsme213 03 Jul '06

03 Jul '06

Is there an easy way, within squeak itself, to open a text editor on an entire class and simply edit the file and "save" the entire file (equivalently, "file-in" the string-buffer). I find I am quicker with this than all the mousing around, specially when making a new class. I know I can file-out and file-in, but I am looking to avoid those steps. Thanks.

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SqueakMap, Monticello
by itsme213 03 Jul '06

03 Jul '06

I have tried to install some packages from SqueakMap and get errors about some pre-requisite dependencies. Is there a loader / packager that is aware of such dependencies and will automatically find and install them? Thanks.

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Ruby macros
by itsme213 03 Jul '06

03 Jul '06

I miss my Ruby macros (1st day in Squeak and I love it ... dislike the camelCase tho'). Would this be the correct way to go about it? RUBY: class Class def has_many symbol ...generate getter/setter with Collection.new end end class House has_many :doors # just remove this line to "Undo" ! end SQUEAK: !Class methodsFor: 'macros' stamp: 'xy 7/1/2006 18:34'! has_many: aSymbol ... generate getter/setter with (Collection new) ... record meta-data fact on the class itself ! ! undo_has_many: aSymbol ... check meta-data on the class ... remove getter/setter ! ! Any starting hints for: (a) what would I put in the "...." :-) (b) how to put these onto convenient popup menus? (c) pointers to specific freely available stuff like these? Many thanks.

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variableWordSubclass:
by Joaquin Sitte 03 Jul '06

03 Jul '06

Hi, Please can someone explain the behaviour described below? I wish to create a subclass of FloatArray for a dynamic system simulation. When creating the class with #subclass: the method is automatically changed to #variableWordSubclass: as follows FloatArray variableWordSubclass: #DynamicVariable That is fine. But when I wish to create an instance dv2 _ DynamicVariable new: 2 I get an error telling me that #new: is not understood. However #new: is understood by the superclass #FloatArray. Why? And, by the way, the method #variableWordSubclass cannot be found with Method Finder. Why? Many thanks in advance. Joaquin Dr. Joaquin Sitte, Associate Professor. School of Software Engineering and Data Communication Faculty of Information Technology Queensland University of Technology GPO Box 2434, Brisbane, Q 4001 Australia Phone +61 7 3864 2755 Fax +61 7 3864 1801 e-mail: j.sitte(a)qut.edu.au homepage <http://www.fit.qut.edu.au/~sitte> http://www.fit.qut.edu.au/~sitte

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Beginners July 2006