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Represents a command that can be executed. Often used to run code in a different
Thread.
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An URLConnection for HTTP (RFC 2616 [http://tools.ietf.org/html/rfc2616]) used
to send and receive d
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An exception that indicates a failed JDBC operation. It provides the following
information about pro
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Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
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This is the central class in the log4j package. Most logging operations, except
configuration, are d
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A Rectangle specifies an area in a coordinate space that is enclosed by the
Rectangle object's top-
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