From: "Reid.Thompson" <reid.thompson@...>
Date: 2008-09-15T22:37:42+09:00
Subject: Re: Need someone who can help

On Mon, 2008-09-15 at 22:11 +0900, Dot Baiki wrote:
> Hello
> 
> Please, can someone help me with this problem. I am really stuck. Can't
> find my problem. Simple code snippet is not working at all. I totally
> desperate.
> 
> Look at this:
> --------------------start
> #!/usr/bin/env ruby
> 
> class AreaOfCircle
> 
> PI = 3.14159265
> 
>   def initialize(radius, area)
>     @radius = radius
>     @area = area
>   end
> 
>   def calc_area(radius)
>     @area = PI * @radius**2
>   end
> end
> 
> print 'Enter radius of circle: '
> keyboard_input = gets
> radius = keyboard_input.to_f
> 
> instance = AreaOfCircle.new
> screen_output = instance.calc_area(keyboard_input)
> puts screen_output
> ----------------------------------- end
> 
> I'm already pulling my hairs (not much left by now). Hopefully you can
> give me any hint!
> 
> Regards,
> Baiki#!/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: '
keyboard_input = gets
radius = keyboard_input.to_f

instance = AreaOfCircle.new radius
screen_output = instance.calc_area(radius)
puts screen_output