From: Tom Link Date: 2009-02-04T03:37:21+09:00 Subject: Re: What kind of inheritance is that? > What kind of inheritance is HTTPServer << ::WEBrick, I don't undestand de :: > before. What does it means? It's there to make sure the right class is used. Try: class A def foo "a" end end module B class A def foo "ba" end end p A.new.foo p ::A.new.foo end "ba" "a" => nil