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ex3.5
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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 | |
kitty = Cat.new("grey", "Persian") | |
puts "What color is our cat?" | |
puts kitty.color | |
puts "Let's give our new cat a name" | |
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 | |
puppy = Dog.new("black", "Staffordshire Terrier") | |
puppy.speak | |
puts puppy.breed |
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