From: Stu <stu@...>
Date: 2011-02-05T14:15:58+09:00
Subject: Re: variables and scope

take note of the usage of @ for scope as well as the special
initialize method used as a constructor for the object.

also note note you common bug/mistake. Your where setting n to
negative one. you need to use n = n + -1 or shorthand version below is
n += -1

class Test
  def initialize
  @n = 100
  end

  def pt
    p "hi there"
    @n += -1
  end
end

t = Test.new
puts t.pt

If you would like to know more have a look at attr_* in ruby

Good luck with your classes

~Stu


On Fri, Feb 4, 2011 at 10:17 PM, Mike 1. <mike17931793@gmail.com> wrote:
> Hi all,
>
>  I would be asking my instructor this question be she is not available
> on
> the weekends...
>
>  How do I make "n" available from anywhere inside the class? I need to
> keep the values in n from call to call.
>
>  When calling the method "pt", "n" acts as if it was not declared above.
>
>  I get -1 instead of what I wish for ... 99.
>
>  Thanks in advance,
>
>  Mike
>
> class Test
> n=100
>
>  def pt
>   puts "hi there"
>   n=-1
>  end
>
> end
>
> t = Test.new
> puts t.pt
>
> --
> Posted via http://www.ruby-forum.com/.
>
>