Ruby/Class/private

class MyNumber
  def initialize
    @secret = rand(20)
  end
  def hint
    puts "The number is #{"not " if secret <= 10}greater than 10."
  end
  private
  def secret
    @secret
  end
end
s = MyNumber.new
s.secret
s.hint
class OurNumber < MyNumber
  def hint
    lower = secret-rand(10)-1
    upper = secret+rand(10)+1
    "The number is somewhere between #{lower} and #{upper}."
  end
end
ls = OurNumber.new
ls.hint
# => "The number is somewhere between -3 and 16."
ls.hint
# => "The number is somewhere between -1 and 15."
ls.hint
# => "The number is somewhere between -2 and 16."

class Animal
  def initialize(color)
    @color = color
  end
  private
  def get_color
    return @color
  end
end
class Dog < Animal
  def initialize(color)
    @animal = Animal.new(color)
  end
  def get_info
    return @animal.get_color
  end
end
dog = Dog.new("brown")
puts "The new animal is " + dog.get_info
animal2 = Animal.new("red")
puts "The new animal is " + animal2.get_color