person.rb

# This is madness...or is it genius?!
#
# Use separate modules for separating private and protected methods from the
# public interface.
#
# Don't forget to run rdoc on this source.

class Person 
  module Protected #:nodoc:
    protected
    def first
      @first
    end
    def last
      @last
    end
  end
end

class Person 
  module Private #:nodoc:
    private
    def first=(first)
      @first = first
    end
    def last=(last)
      @last = last
    end
  end
end

# A representation of a person
class Person
  include Person::Private
  include Person::Protected

  # Create a new person with a first and last name
  def initialize(first, last)
    self.first = first
    self.last = last
  end

  # Get the person's name
  def name
    "#{first} #{last}"
  end
end

p = Person.new('John', 'Doe')
p p.name