Collection interfaces (Was: New to OO concepts - re-usability)

Jerry Coffin jcoffin at
Wed Feb 28 18:08:52 EST 2001

In article <MCjm6.474652$U46.14163288 at>, 
patrickdlogan at says...

[ ... ] 

> It is possible to hide the implementation behind any procedure. But
> it requires some kind of OO mechanism to be polymorphic. That
> is what OO is, by definition.

Strictly speaking, that's not really true: OO has requirements above 
and beyond polymorphism.  Therefore, not all mechanisms that supply 
polymorphism are necessarily OO. 


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