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An input stream that reads bytes from a file.
File file = ...finally
if (in != null)
in.clos
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Signals a general, I/O-related error. Error details may be specified when
calling the constructor, a
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Thrown when a hostname can not be resolved.
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A concrete subclass of NumberFormat that formats decimal numbers. It has a
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Collection is the root of the collection hierarchy. It defines operations on
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This is the central class in the log4j package. Most logging operations, except
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