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From: Wilt, Charles
Lastly, and hopefully not to confuse the issue. But Dr. Soltis points out
the OS/400 is Object-Based
not Object-Oriented. The difference is Object-Based doesn't use
inheritance (and thus doesn't use
polymorphism).
Absolutely, Charles. I didn't mean to imply that i5/OS is an OO
environment. In fact, I was trying to do the opposite: I was trying to show
that concepts like polymorphism are not limited to OO, and that we use them
all the time. We just don't call them polymorphism.
Heck, my three-year old understands polymorphism. He knows that opening a
book is different than opening a door, and that opening a car door is
different than opening the refrigerator door.
He even knows that "No" is polymorphic, and depends entirely on what it is
he's doing at the time <grin>.
Joe
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