From: Robert Klemme <shortcutter@...>
Date: 2008-09-11T22:00:39+09:00
Subject: Re: define and call methods in ruby

2008/9/11 Jay Pangmi <jaeezzy@gmail.com>:
> David A. Black wrote:
>> This will get you started:
>>
>>    class Myclass
>>      def method_to_call
>>        puts "Hello!"
>>      end
>>    end
>>
>>    object = Myclass.new
>>    object.method_to_call
>>
>> It's the object (the instance of Myclass) that can execute the method.
>>
>>
>> David
>
> Thanks David for the help, but just kinda suprised, wouldn't it be for
> method that's being called from another class (no offense, just my view
> from my lil knowledge of java). If what you are saying is what should be
> for method calls in the same class then can you please lighten me up a

What?

> bit coz I'm new to ruby as well. I mean method calls as:
> ================================================================================
> class myclass
>  if something then
>   do_something
>  end
>
>  #implementation of do_something method.
>  def do_something
>  here something is done..
>  end
> end

You are mixing instance and class methods.  When you do

class X
  if expr then
    do_something
  end
end

do_somehing must be a class method because inside class..end self is
the class.  Try it out:

class Foo
  p self

  def x
    p self
  end
end

Foo.new.x

From what you write I am unsure whether basic OO principles are clear
to you.  In case not, you should probably read some introductory
material about OOA/OOD/OOP.

Cheers

robert

-- 
use.inject do |as, often| as.you_can - without end