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So
far we have used classes and objects to represent
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generalized
abstractions.
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We
learned how to enable these abstractions to be used in
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the
same contexts as built-in types.
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We
learned what design tradeoffs to make to keep our
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abstractions
as efficient as possible.
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But,
even though we were using objects, we were not
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using
object-oriented programming. We were simply one
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step
closer by understanding the syntax of classes and
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objects.
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Our
abstractions were limited to stand alone classes.
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