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Instances exhibit the instance
variables of their class and all the public instance variables declared in
that class's superclasses. Each Movie instance, for example, has
its own copy of every instance variable declared in the Movie and
Attraction classes.
Similarly, instances serve as
targets for instance methods defined in their class and all the public
instance methods defined in that class's superclasses. You can, for
example, work on a Movie instance not only with instance methods
defined in the Movie class, but also with those defined in the
Attraction class.