From: Brian Candler <b.candler@...>
Date: 2008-12-11T17:55:56+09:00
Subject: Re: What do you call this part of an object?

Mmcolli00 Mom wrote:
> What do you call this part of an object? @action== positions=0,0
> elements="\n","\n". Thanks in advance.

They are instance variables.

class Foo
  attr_accessor :x, :y
  def initialize(x,y)
    @x = x
    @y = y
  end
  def say_something
    puts "@x is #{@x} and @y is #{@y}"
  end
end

f = Foo.new("hello", "world")
puts f.inspect
f.say_something

# Using the accessor methods which attr_accessor adds
f.x = "goodbye"
puts f.x
puts f.y

You really need to understand instance variables, classes and methods if 
you are going to start programming in Ruby. I suggest you start here:
http://www.ruby-doc.org/docs/ProgrammingRuby/

(If you want a paper or PDF book, there are newer versions of this book 
available from www.pragprog.com)
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