With -w enabled you can't use params like that without
getting uninitialized value warnings when the params aren't
defined. Also
$q->param{'Address'} shouldn't have
curly braces but parentheses:
$q->param('Address').
This version shows a way to properly initialize the variables
whether the params exist or not.
#!/usr/local/bin/perl -w
use strict;
use CGI;
my $q = CGI::new();
my $name = $q->param('Name') || '';
my $addy = $q->param('Address') || '';
print $q->header;
print <<HTML;
<form>
Name: <input type="text" name="Name" value="$name">
Address: <input type="text" name="Address" value="$addy">
<input type="submit" value="Refresh">
</form>
HTML
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