using System;
using System.Collections.Generic;
using System.Linq;
...

class NewsApi
  URL = "http://www.mysomething.com/partner/api/1_0/randomnumber/channel/290/material/list/"

...

#app/models/news_api.rb
class NewsApi
  URL = "http://www.mysome.com/partner/api/1_0/somerandomnumbera12334535d5b393a4b0/channel/290/material/list/"
...

require 'open-uri'

class NewsController < ApplicationController
...

module Menus
  
 def self.getValidPositiveNumber
...

module Menus
  
 def self.getValidPositiveNumber
...

module Menus
  
  class Main_Menu
...

require 'ruby_camping'
require 'camping_guests'

...

require 'guest'
require 'parking_lot'

...