From: John Sheahan <contact@...>
Date: 2007-12-03T04:02:41+09:00
Subject: Re: Running -r in IRB

Makes sense, Sebastian....thanks for the input.

I guess the example in the book was just suppose to be showing me how to 
include a class in irb and explain some code without being able to run 
the code and get the output....kind of wierd but I get the point they 
are trying to make thanks to you.

I really appreciate your help with these basic questions....I'm kind of 
a slow learner when it comes to code

jackster


Sebastian Hungerecker wrote:
> 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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