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Wraps either an existing OutputStream or an existing Writerand provides
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Represents a command that can be executed. Often used to run code in a different
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A Uniform Resource Identifier that identifies an abstract or physical resource,
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An iterator over a sequence of objects, such as a collection.If a collection has
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Patterns are compiled regular expressions. In many cases, convenience methods
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This is the central class in the log4j package. Most logging operations, except
configuration, are d
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