From: Sebastian Hungerecker <sepp2k@...>
Date: 2007-12-03T03:38:02+09:00
Subject: Re: Running -r in IRB

John Sheahan wrote:
> irb(main):011:0> other_wall=Wall.new(10)
> => #<Wall:0xe0371a0 @bottles=10>
> irb(main):012:0>
>
> I'm wondering why I don't get the program to run and count the 99
> bottles of beer starting with 10 in this case?

Because nothing in your initialize method does that.
Wall.new(10) creates a new Wall object and calls its initialize method with 
the paramter 10. Since your initialize method is defined as follows:

def initialize(num_of_bottles)
  @bottles = num_of_bottles
end

Wall.new(10) will return a Wall object whose @bottles instance variable has 
been set to 10. It won't do anything more than that because it hasn't been 
told to do anything more.


HTH,
Sebastian
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