Groups > comp.lang.java.programmer > #5470

Re: The greeting code in Java

From	Gene Wirchenko <genew@ocis.net>
Newsgroups	comp.lang.java.programmer
Subject	Re: The greeting code in Java
Date	2011-06-21 07:47 -0700
Organization	A noiseless patient Spider
Message-ID	<agb1079fnhlik4gsu2vgh97vfp3mcf1mut@4ax.com> (permalink)
References	(3 earlier) <itlgsn$vr8$1@dont-email.me> <969l09FjduU8@mid.individual.net> <itpi56$9du$1@dont-email.me> <IO-20110621095451@ram.dialup.fu-berlin.de> <itpoja$f2a$1@dont-email.me>

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On Tue, 21 Jun 2011 09:34:34 +0000 (UTC), Tobias Blass
<tobiasblass@gmx.net> wrote:

[snip]

>I know these quotes (every programmer should).
>I didn't want to warn of using getchar. I must admit the performance thing was a
>guess (and I think I read it somewhere), but even if it is the second part of
>the sentence applies. Premature Optimization is mainly evil _because_ you
>sacrifice simplicity (there are other reasons but this is the most important
>one). 

     This point was covered neatly in "Code Complete".  At least, it
was in the first edition.  I have not read the latest.

     McConnell was writing encryption software to run on an original
IBM pc.  He optimised and optimised to speed up his C code.  Finally,
he hucked it and rewrote in Assembler.  His observation was that as
more and more optimisations were added, the code became much less
readable.

     I like to optimise for code readability.  If code is useful, it
generally will have a long lifetime.  That gives more opportunity for
changes being required.  Changes are a real bother when the code is
not easily readable.

Sincerely,

Gene Wirchenko

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The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 06:06 -0700
  Re: The greeting code in Java Aéris <aeris@imirhil.fr> - 2011-06-19 15:19 +0200
    Re: The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 06:44 -0700
      Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 10:13 -0400
        Re: The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 07:17 -0700
          Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 11:01 -0400
            Re: The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 12:06 -0700
              Re: The greeting code in Java Aéris <aeris@imirhil.fr> - 2011-06-19 22:06 +0200
                Re: The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 22:33 -0700
              Re: The greeting code in Java RedGrittyBrick <RedGrittyBrick@spamweary.invalid> - 2011-06-20 16:36 +0100
              Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-20 12:25 -0400
                Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-20 13:00 -0400
                Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-20 15:24 -0400
              Re: The greeting code in Java blmblm@myrealbox.com <blmblm.myrealbox@gmail.com> - 2011-06-20 19:23 +0000
          Re: The greeting code in Java Joshua Cranmer <Pidgeot18@verizon.invalid> - 2011-06-19 16:25 -0400
            Re: The greeting code in Java Joshua Cranmer <Pidgeot18@verizon.invalid> - 2011-06-19 17:22 -0400
        Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 12:08 -0400
        Re: The greeting code in Java "Nasser M. Abbasi" <nma@12000.org> - 2011-06-19 19:35 -0700
          Re: The greeting code in Java "Nasser M. Abbasi" <nma@12000.org> - 2011-06-19 21:41 -0700
        Re: The greeting code in Java Joshua Cranmer <Pidgeot18@verizon.invalid> - 2011-06-20 01:02 -0400
      Re: The greeting code in Java Aéris <aeris@imirhil.fr> - 2011-06-19 16:51 +0200
        Re: The greeting code in Java Stanimir Stamenkov <s7an10@netscape.net> - 2011-06-19 18:06 +0300
          Re: The greeting code in Java Aéris <aeris@imirhil.fr> - 2011-06-19 17:24 +0200
            Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 11:37 -0400
            Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 11:40 -0400
        Re: The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 12:05 -0700
        Re: The greeting code in Java blmblm@myrealbox.com <blmblm.myrealbox@gmail.com> - 2011-06-20 19:21 +0000
  Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 10:31 -0400
    Re: The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 11:36 -0700
      Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 15:03 -0400
        Re: The greeting code in Java blmblm@myrealbox.com <blmblm.myrealbox@gmail.com> - 2011-06-20 19:22 +0000
          Re: The greeting code in Java Tobias Blass <tobiasblass@gmx.net> - 2011-06-21 07:44 +0000
            Re: The greeting code in Java Tobias Blass <tobiasblass@gmx.net> - 2011-06-21 09:34 +0000
              Re: The greeting code in Java Gene Wirchenko <genew@ocis.net> - 2011-06-21 07:47 -0700
            Re: The greeting code in Java blmblm@myrealbox.com <blmblm.myrealbox@gmail.com> - 2011-06-21 20:43 +0000
              Re: The greeting code in Java Tobias Blass <tobiasblass@gmx.net> - 2011-06-22 08:35 +0000
                Re: The greeting code in Java blmblm@myrealbox.com <blmblm.myrealbox@gmail.com> - 2011-06-22 20:04 +0000
  Re: The greeting code in Java Stanimir Stamenkov <s7an10@netscape.net> - 2011-06-19 19:07 +0300
    Re: The greeting code in Java Saeed Amrollahi <amrollahi.saeed@gmail.com> - 2011-06-19 12:08 -0700
  Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 13:07 -0400
    Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 13:11 -0400
      Re: The greeting code in Java Jeff Higgins <jeff@invalid.invalid> - 2011-06-19 14:19 -0400

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