hello_ruby.rb

#!/usr/bin/ruby

require 'date'

class Girl
  def initialize(name, date_of_birth, weight_in_kg)
    @name = name
    @date_of_birth = date_of_birth
    @weight_in_kg = weight_in_kg
  end

  def hello
    puts "Hello World! My name is #{@name}. I was born on #{@date_of_birth} and weigh #{@weight_in_kg} kg."
  end
end


baby_ruby = Girl.new("Ruby Faye Hawkins", Date.new(2015, 11, 26), 2.72)

baby_ruby.hello()