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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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HashSet is an implementation of a Set. All optional operations (adding and
removing) are supported.
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An ordered collection (also known as a sequence). The user of this interface has
precise control ove
- Random (java.util)
This class provides methods that return pseudo-random values.It is dangerous to
seed Random with the
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A TimeUnit represents time durations at a given unit of granularity and provides
utility methods to
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Defines a general exception a servlet can throw when it encounters difficulty.
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