From: Alder Green <alder.green@...>
Date: 2006-01-01T05:47:29+09:00
Subject: Re: Stuck on Page 27 of Programming Ruby

------=_Part_6481_18721780.1136062036846
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

Hello Allen,

The problem appears to be with this line:

Song.new("Bicylops", "Fleck", 260)

The error message says "wrong number of arguments (3 for 0)", meaning that
Song#initialize (the initialize method defined by "def initialize ....
end" inside the Song class) doesn't take any arguments, while in the above
line you are in fact supplying 3 arguments to it.

So, either the problem is in the call and you're supposed to call
Song.newsans arguments:

Song.new()

Or Song#initialize got ill-defined/overriden in some problematic way.

Option #2 seems more likely; it's not logical that you can create a song
object without even a name.

Regards,
Alder Green


On 12/31/05, Allen Dardenelle <junk@dardenelle.com> wrote:
>
> HI all, this is my first post in the forum!  I got the Ruby and Rails
> books for Christmas and I am having a lot of fun with them.  But I am
> stuck on page 27 in Programming Ruby.  I've gotten the code from the web
> site and it's not working.
>
> Here is the code:
>
> !#/usr/local/bin/ruby -w
>
> class Song
> def to_s
>    "Song: #@name--#@artist (#@duration)"
> end
> end
> song =3D Song.new("Bicylops", "Fleck", 260)
> song.to_s
>
> Here is my error:
>
> ruby.rb:8:in `initialize': wrong number of arguments (3 for 0)
> (ArgumentError)
>        from ruby.rb:8:in `new'
>        from ruby.rb:8
>
> --
> Posted via http://www.ruby-forum.com/.
>
>

------=_Part_6481_18721780.1136062036846--