Silly dice class for teaching purposes

dice.rb

class Dice
  attr_accessor :sides
  
  # set "sides" to default to 6
  def initialize
    self.sides = 6
  end
  
  # take a random number from 0 to 1, multiply by number of sides,
  # then round up
  def roll
    (rand * self.sides).ceil
  end
end

dice = Dice.new

puts "Dice rolled " + dice.roll.to_s
puts "Dice rolled " + dice.roll.to_s
puts "Dice rolled " + dice.roll.to_s