pet.rb

class Pet
  attr_reader :color, :breed
  attr_accessor :name
  def initialize(color, breed)
    @color = color
    @breed = breed
    @hungry = true
  end
  def feed(food)
    puts "Mmmm, " + food + "!"
    @hungry = false
  end
  def hungry?
    if @hungry
      puts "I'm hungry!"
    else
      puts "I'm full!"
    end
    @hungry
  end
end  
class Cat < Pet 
  def speak
    puts "Meow!"
  end
end
class Dog < Pet
  def speak
    puts "Woof!"
  end
end
puppy = Dog.new("black", "Canis Panther")
puts puppy.breed

kitty = Cat.new("grey", "Persian") 
puts "Let's inspect our new cat:"
puts kitty.inspect
puts "What class does our new cat belong to?"
puts kitty.class
puts "Is our new cat an object?"
puts kitty.is_a?(Object)
puts "What color is our cat?"
puts kitty.color
puts "Let's give our new cat a name"
kitty.name = "Annabelle"
puts kitty.name
puts "Is our cat hungry now?"
kitty.hungry?
puts "Let's feed our cat"
kitty.feed("tuna")
puts "Is our cat hungry now?"
kitty.hungry?
puts "Our cat can make noise"
kitty.speak

puts "What color is our dog?"
puts puppy.color
puts "Our dog can make noise?"
puppy.speak