From: "Duan, Jingjing" <jduan@...>
Date: 2011-11-10T01:38:51+09:00
Subject: Re: How can I overwrite class variables

There are two ways (maybe more) to define methods as private.

1. 
class C 
  private # every method following will be private
  def m1 ... end
  def m2 ... end
end

2.
class C 
  def m1 ... end
  def m2 ... end
  private :m1, :m2
end

In both cases, m1 and m2 would be private. 

Of course, in Ruby nothing is fixed. You can make private methods public again if you really want to.

-Jingjing


-----Original Message-----
From: Fily Salas [mailto:fs_tigre@hotmail.com] 
Sent: Wednesday, November 09, 2011 8:30 AM
To: ruby-talk ML
Subject: Re: How can I overwrite class variables

Marc Heiler wrote in post #1031087:
>> bad because I could't figure this out by my self
>
> You just need to write more ruby code.
>
> Ideally, write small classes that solve a given problem,
> then re-use those classes to make a larger project.

Do you know of any tutorials where you can actually practice Ruby in
actual projects?  Not tutorials on the Ruby syntax (projects using Ruby)


I have another question, in Peters code he used "private" but if I
remove it, it actually works can someone explain the use of private
here, is this the way of making a private def in Ruby?

----------------------------------
  private

  def calc
    sheet_width = 60
    sheet_length = 120

    parts_y = sheet_width / (@part_width + @kerf)
    parts_x = sheet_length / (@part_length + @kerf)
     puts parts_y * parts_x
  end

---------------------------------

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