From: Robert Klemme <shortcutter@...>
Date: 2010-07-18T16:35:03+09:00
Subject: Re: ruby abstraction

On 07/18/2010 06:53 AM, David Masover wrote:
> On Saturday, July 17, 2010 08:21:10 pm James O'Brien wrote:
>> I have found the concept of an interface invaluable in my Java programming
>> and wondered if there were an equivalent concept in Ruby?
>
> Yes and no.

:-)

> Yes, there is certainly a concept of an "interface" -- this is an abstract
> concept that really applies to all languages. But no, it's not built-in to the
> language.
>
> More specifically, the Java concept of an interface is only really needed
> because Java is statically typed.
>
>> as a thought-experiment I
>> propose Java without interfaces would be worse
>
> Probably.

You could not have Java without interfaces.  You would at least have to 
drop static typing and this would be a major change to the language.  I 
don't think you would still call the result of this operation "Java".

Kind regards

	robert

-- 
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