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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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Provides a client-side TCP socket.
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Formats and parses dates in a locale-sensitive manner. Formatting turns a Date
into a String, and pa
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Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
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Defines methods that all servlets must implement. A servlet is a small Java
program that runs within
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