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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 connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
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A specific moment in time, with millisecond precision. Values typically come
from System#currentTime
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Note: Do not use this class since it is obsolete. Please use the Map interface
for new implementatio
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LinkedHashMap is an implementation of Map that guarantees iteration order. All
optional operations 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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