I know this was just meant as a quick example for demonstration purposes, but you'd think you would want a return value from the subs, rather than a printed value. This allows a greater functionality of that method, such as placing the value in a scalar rather than printing it to the screen immediately. Meaning: 

#!/usr/bin/perl -w
use strict;

my @objects = (
  {
    name => 'sheep',
    speak => sub { "baaah" }
  },
  {
    name => 'dog',
    speak => sub { "woof" }
    },
  {
    name => 'mouse',
    speak => sub { "squeak (almost silently)" }
  },
  {
    name => 'fish',
    speak => sub { ".oO()" }
  }
);

printf "a %s goes %s.\n", $_->{name}, $_->{speak}->()
  for @objects;

__END__
a sheep goes baaah.
a dog goes woof.
a mouse goes squeak (almost silently).
a fish goes .oO().

[download]

(This is not even nitpicking or saying you did it a dumb way. I was just proud of my own observation on how to improve such a thing for wider use :P)

In reply to Re^2: Object Terminology by Coruscate
in thread Object Terminology by stvn

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.