CODEWITHSUNDEEP
ruby
Paul Duca
Paul Duca

Reputation: 31

Defined method comes up undefined?

I was trying to recreate an example from beginning ruby by Peter Cooper.

class Animal
  attr_accessor :name

  def initilize(name)
    @name = name
  end
end

class Cat < Animal
  def talk
    puts "Meow!"
  end
end

class Dog < Animal
  def talk
    puts "Woof!"
  end
end

class Cow < Animal
  def talk
    puts "Moo!"
  end
end

class Sheep < Animal
  def talk
    puts "Bahhhh"
  end
end

animals = [Cat.new.initilize("Tiger"), Dog.new.initilize("Ginger"), Cow.new.initilize("Gretta"), Sheep.new.initilize("Sally")]

animals.each do |x|
  x.talk
end

Various attempts including calling the method separately do not seem to work. I'm not sure if the problem is with inheritance. Please help.

Upvotes: 0

Views: 84

Answers (2)

max pleaner
max pleaner

Reputation: 26788

There are a few problems with your code:

  1. It's spelled initialize, not initilize. Methods with this name defined on classes are special because they return an instance of the class.

  2. When you do something like this: Cat.new.initilize("Tiger") that is incorrect. You will never manually call the initialize method. It automatically gets run when you call Cat.new("Tiger") and has the arguments passed to it.

Upvotes: 3

Pramod
Pramod

Reputation: 1416

Your code is wrong at couple of places.

  1. You should change your method name from initilize to initialize.
  2. Instead of doing Cat.new.initilize("Tiger"), you should do Cat.new("Tiger") to create the object.

After the code changes, you will get the desired results.

    animals = [Cat.new("Tiger"), Dog.new("Ginger"), Cow.new("Gretta"), Sheep.new("Sally")]

    animals.each {|x| puts x.talk}

will give

Meow!

Woof!

Moo!

Bahhhh

Upvotes: 2

Related Questions