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Re: Class ... implements ...

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Eric Sosman <esosman@ieee-dot-org.invalid> writes:

> On 4/3/2011 3:45 PM, Merciadri Luca wrote:
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>> Eric Sosman<esosman@ieee-dot-org.invalid>  writes:
>>
>>> On 4/3/2011 11:31 AM, Merciadri Luca wrote:
>>>> Eric Sosman<esosman@ieee-dot-org.invalid>   writes:
>>>>> [...]
>>>>> I predict you will get compile-time
>>>>> errors for all five of them.
>>>>
>>>> Okay, I just tested and received the results I wrote before.
>>>> [...]
>>>> Do you have an explanation about your way of reasoning? My compiler
>>>> might be too old, or something like that.
>>>
>>>      I think it less likely that your compiler is broken than that
>>> you put the wrong code through it.  Allow me to draw your attention
>>> to method f() of class C2: What value does it return?  (In the
>>> version you posted, not the version you've been compiling.)
>>
>> It returns nothing, but as it is declared as an int method, it needs
>> to return an int. Well, I added return n. What I sent over the valid
>> and non valid instructions is effectively what I got by compiling the
>> same code, but with a return where it was missing.
>>
>> I now understand your
>> answer. I can't understand why people are sometimes so `picky' in some
>> answers. This often go anti-pedagogical.
>
>     If you pose a question that requires the answerer to imagine
> some kind of repair or completion, different answerers are likely to
> imagine different completions and may therefore give different
> answers.  One reader fleshes out your code *this* way and says "Yes,"
> another completes it *that* way and says "No."  Who's right?  Both!
> What have you learned, having been told both "Yes" and "No?"  Nothing!
>
>     If you dislike pickiness, get out of programming.  Seriously.  The
> computer is far, far pickier than any human can be.
>
>> That reminds me an oral exam. I had to prove some theorem on the board, wrote
>> something like 98% of the proof, but forgot some things. Well, the
>> proof was not complete, and the theorem was thus unproved, but is it a
>> reason to say `totally erroneous?' Sure not, at least to me. It is
>> better to say `well, you forgot some things.' Especially when the
>> related mark is however high. This got many students completely
>> frustrated, shocked, and unable to answer anymore at an oral. This is
>> not what needs to be evaluated at an oral exam!
>
>     Writing on a blackboard and waving your hands and operating the
> smoke-and-mirrors machine for a human audience is one thing; writing
> code and giving it to a completely unimaginative compiler is another.
> If you think you can write 98% of a program and have it work, you are
> in the wrong line of work altogether.
>
>     (Also, I did not use the phrase "totally erroneous."  I called
> your code "a half-remembered half-accurate half-assed approximation."
> I'm not sure "totally erroneous" is even possible, since there does
> not seem to be an upper bound on error: Any program, however bad, can
> always be disimproved -- or so I suspect.)
>
>> Here, if I may, you answered correctly the question, but note that it
>> brought me nothing interesting, simply because I did not understand
>> your message, even if it was perfectly correct and irreproachable.
>
>     That's because you're lazy.  Or inattentive.  Or both.
>
>> Wouldn't it have been simpler, more pedagogic, and even `friendler,'
>> to say `this way, there will be a problem with some method. Check it,
>> because this is surely not the aim of this exercise.'
>
>     Have you heard about giving a man a fish versus teaching him to
> fish?  Here's the point: You have questions about Code Sample A, and
> you show us Code Sample B instead.  Therefore you get wrong answers.
> My pedagogic purpose was to teach you the folly of pretending A == B.
> I claim that my purpose has been achieved: You have been taught the
> lesson, even though you clearly resent learning it.
>
>     Besides, you have already told us that you do not wish to learn
> Java "in depth," so why complain about shallow answers?  It's odd for
> an admitted non-learner to harp on pedagogy.

Everybody wants to learn everything in depth. The fact is that there
are far more important things in my studies now. As a result, I want
to learn the basic and most important things in Java. I wrote a
project for the course, but it did not give me sufficient knowledge
about Java. Well, I can do many things, but I haven't yet the habit,
and it will take some time. Programming is clearly something that is
honed by years of practice.

All the best,

- -- 
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
- -- 

It's the early bird that gets the worm.
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Class ... implements ... Merciadri Luca <Luca.Merciadri@student.ulg.ac.be> - 2011-04-02 22:13 +0200
  Re: Class ... implements ... Lew <noone@lewscanon.com> - 2011-04-02 17:30 -0400
    Re: Class ... implements ... Roedy Green <see_website@mindprod.com.invalid> - 2011-04-02 23:09 -0700
    Re: Class ... implements ... Merciadri Luca <Luca.Merciadri@student.ulg.ac.be> - 2011-04-03 12:00 +0200
  Re: Class ... implements ... Roedy Green <see_website@mindprod.com.invalid> - 2011-04-02 20:53 -0700
    Re: Class ... implements ... Stanimir Stamenkov <s7an10@netscape.net> - 2011-04-03 10:15 +0300
  Re: Class ... implements ... Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-04-03 08:42 -0400
    Re: Class ... implements ... Roedy Green <see_website@mindprod.com.invalid> - 2011-04-03 06:45 -0700
      Re: Class ... implements ... Merciadri Luca <Luca.Merciadri@student.ulg.ac.be> - 2011-04-03 17:29 +0200
        Re: Class ... implements ... Patricia Shanahan <pats@acm.org> - 2011-04-03 09:01 -0700
          Re: Class ... implements ... Merciadri Luca <Luca.Merciadri@student.ulg.ac.be> - 2011-04-03 18:10 +0200
            Re: Class ... implements ... Patricia Shanahan <pats@acm.org> - 2011-04-03 09:32 -0700
              Re: Class ... implements ... Merciadri Luca <Luca.Merciadri@student.ulg.ac.be> - 2011-04-03 18:48 +0200
        Re: Class ... implements ... Aéris <aeris@imirhil.fr> - 2011-04-03 18:07 +0200
          Re: Class ... implements ... Merciadri Luca <Luca.Merciadri@student.ulg.ac.be> - 2011-04-03 18:22 +0200
            Re: Class ... implements ... Aéris <aeris@imirhil.fr> - 2011-04-03 19:02 +0200
              Re: Class ... implements ... Merciadri Luca <Luca.Merciadri@student.ulg.ac.be> - 2011-04-03 20:15 +0200
      Re: Class ... implements ... Lew <noone@lewscanon.com> - 2011-04-06 12:01 -0400
    Re: Class ... implements ... Merciadri Luca <Luca.Merciadri@student.ulg.ac.be> - 2011-04-03 17:27 +0200
      Re: Class ... implements ... Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-04-03 14:26 -0400
      Re: Class ... implements ... Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2011-04-03 16:14 -0300
        Re: Class ... implements ... Merciadri Luca <Luca.Merciadri@student.ulg.ac.be> - 2011-04-03 21:33 +0200
          Re: Class ... implements ... Aéris <aeris@imirhil.fr> - 2011-04-03 22:13 +0200
            Re: Class ... implements ... Merciadri Luca <Luca.Merciadri@student.ulg.ac.be> - 2011-04-03 22:24 +0200
      Re: Class ... implements ... Lew <noone@lewscanon.com> - 2011-04-06 12:05 -0400
    Re: Class ... implements ... Merciadri Luca <Luca.Merciadri@student.ulg.ac.be> - 2011-04-03 17:31 +0200
      Re: Class ... implements ... Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-04-03 14:41 -0400
        Re: Class ... implements ... Merciadri Luca <Luca.Merciadri@student.ulg.ac.be> - 2011-04-03 21:45 +0200
          Re: Class ... implements ... Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-04-03 16:40 -0400
            Re: Class ... implements ... Merciadri Luca <Luca.Merciadri@student.ulg.ac.be> - 2011-04-03 22:58 +0200
              Re: Class ... implements ... Lew <noone@lewscanon.com> - 2011-04-06 12:13 -0400
          Re: Class ... implements ... Lew <noone@lewscanon.com> - 2011-04-06 12:10 -0400
        Re: Class ... implements ... Merciadri Luca <Luca.Merciadri@student.ulg.ac.be> - 2011-04-03 21:51 +0200
          Re: Class ... implements ... Patricia Shanahan <pats@acm.org> - 2011-04-03 13:02 -0700
            Re: Class ... implements ... Merciadri Luca <Luca.Merciadri@student.ulg.ac.be> - 2011-04-03 22:23 +0200
          Re: Class ... implements ... Lew <noone@lewscanon.com> - 2011-04-06 12:15 -0400
      Re: Class ... implements ... Lew <noone@lewscanon.com> - 2011-04-06 12:08 -0400

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