From: "Michael W. Ryder" <_mwryder55@...>
Date: 2009-12-10T13:00:11+09:00
Subject: Re: help solving problem in ruby

Govinda Khanal wrote:
> thanx for your help i solve the problem ...
> 
> what actually is to_s and when we use this one?

to_s converts an object to a string.  In this case it converts the song 
object to a format more readable than just using puts.  It is also used 
to convert numbers to strings, etc.