From: Aleksander Ciesielski <neomex@...>
Date: 2012-09-18T19:07:17+09:00
Subject: Class variables

Is it obligatory to use instance variables in classes? Can't we just 
write something like this:

class Test
     var = 5

     def show
         puts var
     end
end

test = Test.new
test.show
p test.var