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Wraps an existing Writer and buffers the output. Expensive interaction with the
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Signals a general, I/O-related error. Error details may be specified when
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A connection represents a link from a Java application to a database. All SQL
statements and results
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An exception that indicates a failed JDBC operation. It provides the following
information about pro
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Calendar is an abstract base class for converting between a Date object and a
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This is the central class in the log4j package. Most logging operations, except
configuration, are d
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