From: Timothy Hunter <TimHunter@...>
Date: 2006-12-30T10:39:53+09:00
Subject: Re: With and without Song#to_s

chen li wrote:
> Happy holiday for all!
>
> I have two classes (most of them copied from Pickaxe
> 2)and they work fine. But I get the address for 
> each object if I comment out method Song#to_s. How to
> explain them?
>
> T
puts calls to_s on each object that it writes. If you don't supply a 
to_s method for your class then the to_s method in your class's 
superclass will be used. Since the superclass is Object, the Object#to_s 
method is used. This version of to_s simply formats the object's class 
and its id as a string.


ri Object#to_s for more information.