assignment1.rb

class Session
  attr_accessor :number, :name, :date

  def initialize(number, name)
  	@number = number
  	@name 	= name
        @date = session_date(number)
   end

   def session_date(number)
    dates = %w[02032013 09032013 16032013 23032013 30032013]
    return dates[number + 3]
   end
end

class Course

  def initialize(course_name)
    @course_name = course_name
    names = %w[Dan Ted Phil Steve Hank]
    @sessions = []
    @participants = names.each { |name| Participant.new(name) }
  end

  def change_preference(options)
    participant = @participants.where(name: options[:name])
    participant[:number] - options[:number]
   end
end
 
Class Participant
  attr_accessor: preference
  
  def initialize(name, preference = nil, favorite_color)
    @name = name
    @preference = preference
    @favorite_color = change_color(favorite_color)
  end
  
  def change_color(favorite_color)
    return "black"
    puts "tralalallalalalalalalalla"
  end
end

course = Course.new("Arts, Science, and Technology")
course.change_preference({name: "Daan", 7])