How to create a private class method?

Question

How come this approach of creating a private class method works:

class Person

  def self.get_name
    persons_name
  end

  class << self

    private         


        

Answer 1

As of ruby 2.3.0

class Check
  def self.first_method
    second_method
  end

  private
  def self.second_method
    puts "well I executed"
  end
end

Check.first_method
#=> well I executed