From: Roseanne Zhang <roseanne@...>
Date: 2007-07-09T01:37:44+09:00
Subject: Re: Polymorphic Code

Sharon Phillips wrote:
> On 08/07/2007, at 12:28 PM, Ari Brown wrote:

Modified Sharon :)'s code, and make it more "like" polymorphism

class Animal
  attr_reader :name
  def initialize(name)
    @name= name
  end
  def says
    @name + " says some strange grunty sound"
  end
end

class Dog < Animal
  def says
    @name + " says Woof!"
  end
end

class Cat < Animal
  def says
    @name + " says Meow"
  end
end

animal = Dog.new("Fido")
puts animal.says
animal = Cat.new("Socks")
puts animal.says
animal = Animal.new("Suzi")
puts animal.says


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