From: james_b <james_b@...>
Date: 2003-06-30T13:49:38+09:00
Subject: Re: ruby tutorial

Pe�a, Botp wrote:
> Hi Friends,
> 
> Where can I get ruby tutorials that explains OO concepts (I've read the axe
> and am still reading the rubyway, but still cannot find samples).
> 
> I'd like something that illustrates a hierarchy like:

</snip>

Being shown a class hierarchy won't tell you how it came about or 
whether or not it's any good.

Foprget about Ruby for a moment and go grab a copy of Designing 
Object-Oriented Software, by Rebecca Wirfs-Brock (or maybe her newest 
book, Object Design: Roles, Responsibilities, and Collaborations; I 
haven't read it.)  It's pricey for a relatively slim paperback, so hunt 
up a used one if you can.  But even at full price it's worth the money.

http://search.barnesandnoble.com/textbooks/booksearch/isbnInquiry.asp?isbn=0136298257

You might also do well with:

Grady Booch. Object-Oriented Analysis and Design with Applications. 
Benjamin/Cummings, Redwood City, CA, 1994.

Ivar Jacobson, with Magnus Christerson, Patrick Johnsson, and Gunnar 
�vergaard. Object-Oriented Software Engineering: A Use Case Driven 
Approach. Addison-Wesley, Wokingham, England, 1992

Ian Graham. Object Oriented Methods, 3rd Ed., Addison-Wesley, Wokingham, 
1991.

Robert C. Martin. Agile Software Development, Principles, Patterns, and 
Practices 1/e, Pearson Education, September 2002

Ruby gets a few mentions in that last book.

But the Wirfs-Brock book is wonderfully succinct, and small enough to 
carry around.

For extra fun, try browsing the Portland Pattern Repository's Wiki; 
perhaps starting here:
http://www.c2.com/cgi/wiki?ObjectOrientedProgramming

( Then go add a vote for Ruby:
http://www.c2.com/cgi/wiki?VoteOnProgrammingLanguages )

James

> 
> kind regards -botp
> 
>