dog.rb

class Dog                                                                       
  def initialize(options = {})                                                  
         @name = options[:name]                                                 
         @color = options[:color]                                               
         @breed = options[:breed]                                               
         @hair = options[:hair]                                                 
         @size = options[:size]                                                 
  end                                                                           
                                                                                
  def description                                                               
    "#{@name} is a #{@size} #{@color} #{hair} haired #{breed}."                 
  end                                                                           
                                                                                
  def speak(bark)                                                               
         "#{@name} says \"#{bark}!\""                                           
  end                                                                           
end                 
                                                                        
puppy = Dog.new(:name => "Lucky", :color => "black", :breed => "Australian      
Shepherd",:hair => "long", :size => "big")                                      
                                                                                
puppy.description                                                               
=> "Lucky is a big black long haired Australian Shepherd."                      
                                                                                
puppy.speak("Woof!")                                                            
=> "Lucky says "Woof!""                                                         
                                                                                
puppy.speak("(Squeaky Wheel")                                                   
=> "Lucky says "Squeaky Wheel!""