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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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Legacy security code; do not use.
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This class provides methods that return pseudo-random values.It is dangerous to
seed Random with the
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A parser that parses a text string of primitive types and strings with the help
of regular expressio
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A synchronization aid that allows one or more threads to wait until a set of
operations being perfor
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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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