Roman Numerals

one_thing.rb

p "Hi, what is your name ?"
@name = gets.chomp
p "Welcome to the quiz, #{@name}! " + "Please enter a Roman numeral with value between 1 and 4 here:"
a = gets.to_i

if a == 1 
  p "I"
end

if a == 2 
  p "II"
end

if a == 3 
  p "III"
end

if a == 4 
  p "IV"
end

p "OK! Let's do it the other way round ! " +
"Please enter an Arabic numeral with value between I and IV here:" +
"(You may copy paste one of them:   I   ,  II   ,  III  ,  IV   ) "
b = gets.chomp.to_s

if b == "I" 
  p 1
end

if b == "II" 
  p 2
end

if b == "III" 
  p 3
end

if b == "IV" 
  p 4
end


p "Well ok, we are done with the first version of this, now copy paste this into your terminal: ruby other_thing.rb"

other_thing.rb

class Application
  def initialize(output)
    @output = output
  end
  
  def convert
    @arabic_array = @output.split(//)
    picture = Picture.new(@arabic_array)
    picture.change_arabic_to_roman
  end
end

class Picture
  def initialize(arabic_array)
      @roman = {
      "1" => "I",
      "2" => "II",
      "3" => "III",
      "4" => "IV",
      "5" => "V",
      "6" => "VI",
      "7" => "VII",
      "8" => "VIII",
      "9" => "IX",
      "0" => "nulla"
    }
    @arabic_array = arabic_array
  end
  
  def change_arabic_to_roman
    @roman_array = @arabic_array.map { |c| @roman[c] }
  end
  
end


puts "Type a number between 1 and 3999. You will get the roman number for each of the digits. "
input = gets.chomp
output = Application.new(input)
puts output.convert