Well bascilyy from 1.0 to 1.1 there were ineer classes added and you
git the events and listeners to work with in GUI instead of
action(Object o, Event arg) (or something like that) 1.1 - 1.2 I
don't really know wha differs, think they added new collection typws.
1.2 - 1.3 the best ever! SWING!!! Good for building GUI. In each
version upgrade they just added more classes to the default library.
I also think you need 1.3 for signed applets(not sure).