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Return the contained value, if present, otherwise throw an exception to be
created by the provided s
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Allows reading from and writing to a file in a random-access manner. This is
different from the uni-
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Calendar is an abstract base class for converting between a Date object and a
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HashSet is an implementation of a Set. All optional operations (adding and
removing) are supported.
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This class provides random read access to a zip file. You pay more to read the
zip file's central di
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