The following code will output
Ruby is a great language!
a="Perl"
def a.+ other
"Ruby"+other
end
a+=" is a great language!\n"
So, ruby does actually allow you to extend and redefine it's built-classes.. the example also works if you define a new class which inherits String, instead of using singleton style inheritance.. I have not however tested this with every built-in class, but those I have tried it with, worked fine!
Or am I just confusing it with that so-called OO language being hyped by Sun? {grin}
He he... probably... I have had alot of beginners getting really confused over the hybrid style of Java...