CF 25

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 "Mmm, " + 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
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 kitty.color
kitty.name = "Betsy"
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

toby = Dog.new("brown","Pug")
puts "Let\'s inspect our new dog:"
puts toby.inspect
puts "What class does our new dog belong to?"
puts toby.class
puts "Is our new dog an object?"
puts toby.is_a?(Object)
puts toby.color
toby.name = "Toby"
puts toby.name
puts "Is our dog hungry now?"
toby.hungry?
puts "Let\'s feed our dog"
toby.feed("tuna")
puts "Is our dog hungry now?"
toby.hungry?
puts "Our dog can make noise"
toby.speak