From: 7stud -- <lists@...>
Date: 2012-12-11T16:02:20+09:00
Subject: Re: Need a little help

Setter:

def some_var_name=(val)
  @some_var_name = val
end

Getter:

def some_var_name
  @some_var_name
end

To set a value, there has to be a setter defined.  To retrieve a value, 
e.g.

  puts obj.some_var_name

there has to be a getter defined.  You canmake ruby define both the 
setter and getter for you if you include the following in your class:

  attr_accessor :some_var_name

Or, if you don't want people to be able to set the value, you can define 
only the getter:

  attr_reader :some_var_name

(you can also define the getter manually).  Etc.

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