Ruby Fundamental - Um pouco sobre classes (parte II)

classes_11.rb

class Dog
  def initialize(name, breed)
    @name, @breed = name, breed
  end

  def bark
    puts "#{@name}: Au, au, au!"
  end

  def sleep
    puts "#{@name}: Zzzzzzz..."
  end

  def to_s
    "#{@name} is a #{@breed}."
  end
end

classes_12.rb

snoopy = Dog.new "Snoopy", "Beagle"
snoopy.sleep # => Snoopy: Zzzzzzz...
snoopy.bark  # => Snoopy: Au, au, au!
snoopy.to_s  # => Snoopy is a Beagle.