On the other hand, showing the newbie how to write the (possibly
complex) program without anonymous classes and then have him refactor
the whole thing later to use anonymous classes he will not understand
when to use and when not to use anonymous classes and he would have to
go through the whole code again trying to understand it again.
except that i wouldnt consider a few printed pages of code a complex example, but thats just me :)
to each their own i guess
one thing to remember is that this is an introductory book aimed at newbies. also keep in mind that people coming form mvc frameworks lke struts/webwork/foo or jsps/php/etc might not necessarily be up to speed on OO, so baby steps were intentional.
and hopefully this approach will avoid the "framework coder", because it teaches you not just the how but the why :) maybe the problem for you is that the why is communicated in a too-much-hands-on manner :)
-Igor
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]] On Behalf
> Of Igor Vaynberg
> Sent: Friday, September 15, 2006 9:24 AM
> To: wicket-user@lists.sourceforge.net
> Subject: Re: [Wicket-user] SUSPECT: RE: Pro Wicket: Great
> first book onwicket
>
> the point i was trying to make is that the progression itself
> can be an important part of the learning - its the journey
> not the destination stuff.
>
> compare the code you write now to the code you wrote two
> years ago. i bet the one you write now is a lot more
> efficient and much cleaner. now imagine yourself two years
> ago looking at the code you write today. i bet you wouldnt
> just go "oh damn thats the way i should do it from now on"
> and instead go "umm...what the hell is this and how does it work"
>
> a more concrete example. show a newbie java programmer code
> full of anonymous classes. chances are they are not going to
> understand it even though it can be the best approach to the problem.
>
> the point that you make about it being unexpected is also
> valid. it mightve been better if karthik gave you a heads up
> that there are better ways of doing this later on.
>
> -Igor
>
>
>
> On 9/15/06, Che Schneider <[EMAIL PROTECTED]> wrote:
>
> Hey Igor,
>
> Although I disagree about the 'real life' (that's what
> you have the
> design for: to avoid the constant architecture change),
> you are right
> that in a book it is a valid approach.
> However, I very much dislike it unless you clearly state in the
> beginning that you are gonna do it in a messy way just to show
> something. Otherwise people (me) spend time reading,
> understanding and
> learning what was said just to learn that 'Actually,
> there is a much
> better way of doing this.'. And that is what it comes
> down to in the
> book sometimes: not 'different' ways but actually 'better' ways!
> If you want to show a certain feature of the API, show
> it in an example
> that is an actual case where you would use it. Don't
> just write code to
> show the feature and then re-do it. I will never learn
> when to actually
> use the feature in real life then!
>
> But hey - apparently that's just me... :)
>
> // Che
>
>
>
>
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] ] On Behalf
> > Of Igor Vaynberg
> > Sent: Thursday, September 14, 2006 6:42 PM
> > To: wicket-user@lists.sourceforge.net
> > Subject: Re: [Wicket-user] SUSPECT: RE: Pro Wicket: Great
> > first book onwicket
> >
> > And as I stated in my last email, I personally do not
> > like the way of saying 'Let's do it like this!' and
> > then a chapter later
> > you revoke it all because it can be done
> quicker and cleaner
> > differently.
> >
> >
> > for an introductory book i do not think this is all that bad
> > actually. you are learning the api. you figure out how to do
> > things using the simple api, and the deeper you delve,
> > discovering more advanced features, you can simplify the code
> > you have written before. isnt this what happens in real life
> > as well? at least with this approach you see the progression
> > instead of heaving the book go very very deep into some api
> > to explain how to do something simple efficiently and lose
> > you in the middle of it.
> >
> > -Igor
> >
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