def hello(name, params)
  if params[:language]
    if params[:language] == :Spanish
	  puts "Hola, #{name}!"
    elsif params[:language] == :French
      puts "Bonjour, #{name}!"
    end
  else
    puts "Hello, #{name}!"
  end
end



------------------------------------------------------


class Post
  def title=(value)
    @title = value
  end

  def title
    @title
  end

  def body=(value)
    @body = value
  end

  def body
    @body
  end

  def display_post
    puts "Title:",  @title
    print "Body:", @body
  end
end

--------------------------------------------------------

class Post
  attr_accessor :title, :body

  def initialize(args = {})
    @title = args[:title] if args[:title]
    @body = args[:body] if args[:body]
  end

  def display_post
    puts "Title:", @title
    puts "Body:", @body
  end
end

---------------------------------------------------------	

class Person 
  attr_accessor :name 
  def initialize(args = {}) 
    raise "Every Person must have a name" unless args[:name] 
    self.name = args[:name] 
  end 
end 

class Cornellian < Person 
  attr_accessor :net_id 
  attr_accessor :email 
  def initialize(args = {}) 
    super(args) 
    raise "Every Cornellian must have a NetID" unless args[:net_id] 
    self.net_id = args[:net_id] 
  end 
  def email 
    @email || "#{net_id}@cornell.edu" 
  end 
end