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An output stream that writes bytes to a file. If the output file exists, it can
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A specialized Reader that reads from a file in the file system. All read
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Signals a general, I/O-related error. Error details may be specified when
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This class consists exclusively of static methods that operate on or return
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This is the central class in the log4j package. Most logging operations, except
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A point representing a location in (x,y) coordinate space, specified in integer
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