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An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
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A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
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The BitSet class implements abit array [http://en.wikipedia.org/wiki/Bit_array].
Each element is eit
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A Properties object is a Hashtable where the keys and values must be Strings.
Each property can have
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A task that returns a result and may throw an exception. Implementors define a
single method with no
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