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Return the contained value, if present, otherwise throw an exception to be
created by the provided s
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A BufferedInputStream adds functionality to another input stream-namely, the
ability to buffer the i
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A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
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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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