If your keys are always numeric, the you shoudln't be using a hash. That's what arrays are for...:)

Notice thta this way, your don't need to sort in display(). 

use strict;

my @array = (
'angel',
'buffy',
'cordelia',
'dawn',
'ethan',
'faith',
'giles',
);


reorder(5,'up'); # ethan moves up: swaps place with dawn

display();

sub reorder {
    my ($item,$direction) = @_;

      ### Adjust index as arrays start at 0
    $item--; 

      # Down is here :) - you should add bounds checking!
    my $other = $direction eq 'up' 
                ? $item - 1 
                : $item + 1;
    @array[$item, $other] = @array[$other, $item];
    return;
}


sub display {
  print '-' x 30,"\n";
 foreach my $key (0..$#array) {
  printf("%12s is now number %d\n",$array[$key],$key+1); ##Adjust key 
+for display.
 }
  print '-' x 30,"\n";
}
__END__
D:\Perl\test>test
------------------------------
       angel is now number 1
       buffy is now number 2
    cordelia is now number 3
       ethan is now number 4
        dawn is now number 5
       faith is now number 6
       giles is now number 7
------------------------------

[download]

In reply to Re: Swapping Two Hash Values by BrowserUk
in thread Swapping Two Hash Values by Cody Pendant

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.