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Calendar is an abstract base class for converting between a Date object and a
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An ordered collection (also known as a sequence). The user of this interface has
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Locale represents a language/country/variant combination. Locales are used to
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An interface for the creation of Connection objects which represent a connection
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This is the central class in the log4j package. Most logging operations, except
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The LoggerFactory is a utility class producing Loggers for various logging APIs,
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