1 #!/usr/bin/env ruby
  2 #tells if a person is young, adult, or an old person
  3
  4 #1 ask for age
  5 puts "Please enter your age"
  6 age = gets.to_i
  7
  8 #2 Process
  9 #output = if age < 10
 10 #   "Youre a young person"
 11 #elsif age < 19
 12 #   "its a teenager"
 13 #elsif age < 45
 14 #   "its an adult"
 15 #else
 16 #   "You must be ancient"
 17 #end
 18 #
 19 #puts output
 20
 21 #The Switch Statement: Ruby Style
 22 output = case age
 23          when age < 10 then "Youre a young person"
 24          when age <19 then "Youre a teenager"
 25          when age < 45 then "Youre an adult"
 26          else "You must be ancient"
 27 end
 28
 29 puts "If you are #{age} then #{output}"