99 Bottles of Beer

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Language Perl

(object-oriented version)

Date:	05/15/05
Author:	Scott Bryce
URL:	http://scottbryce.com
Comments:	1
Info:	n/a
Score:	(3.00 in 32 votes)

#!/usr/bin/perl
use strict;
use warnings;

#######################################
#
#   99 bottles of beer on the wall
#   Written in object oriented Perl
#
#######################################
my $beer = Bottles->new();
$beer->Take_One_Down() while $beer->Remaining();

package Bottles;

sub new
{
	my $bottles = 99;
	bless \$bottles;
}

sub Take_One_Down
{
	my $self = shift;	
	my $s = $$self == 1 ? '' : 's';
	
	print "$$self bottle$s of beer on the wall,\n";
	print "$$self bottle$s of beer.\n";
	print "Take one down, pass it around.\n";
	
	$$self--;
	
	$s = $$self == 1 ? '' : 's';
	
	print "$$self bottle$s of beer on the wall.\n\n";
}

sub Remaining
{
	my $self = shift;
	return $$self;	
}

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Alternative Versions

Version	Author	Date	Comments
bottled by Acme::EyeDrops	Andrew Savige	06/04/05	76
for signature	Randolph Chung, Joey Hess	04/20/05	0
standard version	Jim Menard	04/20/05	2
bottled version	Christopher J. Carlson	05/17/05	7
Lingua::EN::Inflect	Marty Pauley	04/20/05	1
minimal version	Mark Sheppard	06/01/05	1
polyglot	Jeff Connelly	04/20/05	0
BigInt	Anonymous	04/20/05	0

Comments

David said on 10/31/07 17:12:57

Very nicely written.

It shows the power of OO in Perl. The whole program is two lines and is quite readable.

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one program in 1500 variations