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real language
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Language Ruby
(wall-based OO version)
| Date: | 07/07/05 |
| Author: | Kevin Baird |
| URL: | n/a |
| Comments: | 2 |
| Info: | http://ruby-lang.org |
| Score: |  (2.95 in 19 votes) |
#!/usr/bin/env ruby
# 99 bottles problem in Ruby
class Wall
def initialize(num_of_bottles)
@bottles = num_of_bottles
end
def sing_1_verse
@output = sing_num(@bottles) + " on the wall, " + sing_num(@bottles) + "\n"
@output += "take one down, pass it around, " + sing_num(@bottles-1) + "\n\n"
return @output
end
def sing_all
@output = ''
while @bottles > 0 do
@output += sing_1_verse()
@bottles -= 1
end
return @output
end
def sing_num(num)
@counter = (num > 1) ? 'bottles' : 'bottle'
"#{num} #{@counter} of beer"
end
end # class Wall
wall = Wall.new(99)
puts wall.sing_all()
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Alternative Versions
| Version | Author | Date | Comments | Rate |
|---|---|---|---|---|
| Using continuations, singleton classes | Victor Borja | 09/15/06 | 9 | |
| minimal version | Anonymous | 05/18/05 | 3 | |
| shows inheritance, iterators, yield, etc | Kian Wright | 06/10/05 | 0 | |
| alternative version | Greg T. | 05/18/05 | 10 | |
| In words | Daniel Straight | 07/10/06 | 1 | |
| object-oriented version | Mike Gertz | 04/20/05 | 2 | |
| monkeypatch and anonymous procs | J. B. Rainsberger | 04/04/07 | 0 | |
| Readably re-opening Integer, teetotaller | Eric Budd | 01/06/08 | 0 | |
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Comments
looks like C++ to me...
This has been an extremely useful example to me.