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A connection represents a link from a Java application to a database. All SQL
statements and results
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A specific moment in time, with millisecond precision. Values typically come
from System#currentTime
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A linear collection that supports element insertion and removal at both ends.
The name deque is shor
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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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An Executor that provides methods to manage termination and methods that can
produce a Future for tr
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A filter is an object that performs filtering tasks on either the request to a
resource (a servlet o
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