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GregorianCalendar is a concrete subclass of Calendarand provides the standard
calendar used by most
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UUID is an immutable representation of a 128-bit universally unique identifier
(UUID). There are mul
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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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Defines a general exception a servlet can throw when it encounters difficulty.
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This is the central class in the log4j package. Most logging operations, except
configuration, are d
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