puts "Press a key"
key = STDIN.getc
puts key.class
puts "You have pressed #{key}"
puts key.class
while key != "f" do
    case key
    when "g"
      puts "It's 'g'"
    when "h"
      puts "It's 'h'"
    when "j"
      puts "It's 'j'"
    else
      puts "You gave me #{key} -- I have no idea what to do with that."
    end
    puts "Press a key"
    key = STDIN.getc
    puts "You have pressed #{key}"
end