(no subject)

re. the meaning of "A extends B"

http://ivan-ghandhi.livejournal.com/721606.html

"Java classes are not extensible the way Smalltalk's classes are. In
Java, I have to put up with the pain that my module is unable to
extend Object. In exchange, I gain the benefit that your module is
also unable to extend Object."
(from https://mail.mozilla.org/pipermail/es4-discuss/2008-May/002915.html)