From: Lloyd Linklater <lloyd@2live4.com>
Date: 2008-09-15T23:18:27+09:00
Subject: Re: Need someone who can help

Dot Baiki wrote:
> Hey! Amazing quick response! Outstanding. Sweet solutions! Will continue 
> reading my books I bought. Really cool. Thanks so much. This is what I 
> made now:
> 
> --- begin ---
> #!/usr/bin/env ruby
> 
> class AreaOfCircle
> 
>   PI = 3.14159265
> 
>   def initialize(radius)
>     @radius = radius
>     @area = nil
>   end
> 
>   def calc_area(radius)
>     @area = PI * @radius**2
>   end
> end
> 
> print 'Enter radius of circle: '
> radius = gets.to_f
> puts "You entered: #{radius}"
> 
> instance = AreaOfCircle.new(radius)
> screen_output = instance.calc_area(radius)
> puts "Result: #{screen_output}"
> --- end ---
> 
> You know, the cool thing is that I really soooooon will understand Ruby 
> and its beauty :-)
> 
> Baiki

I am glad that it helped, though it seems that you have more than you 
strictly seem to need.  e.g.

class AreaOfCircle

  PI = 3.14159265

  def calc_area(radius)
    PI * radius**2
  end
end

is plenty.  Note: no parameter needed for the AreaOfCircle.new
-- 
Posted via http://www.ruby-forum.com/.