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Return the contained value, if present, otherwise throw an exception to be
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Provides a client-side TCP socket.
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This class generates cryptographically secure pseudo-random numbers. It is best
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A class which can consume and produce dates in SQL Date format. Dates are
represented in SQL as yyyy
- Date (java.util)
A specific moment in time, with millisecond precision. Values typically come
from System#currentTime
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GregorianCalendar is a concrete subclass of Calendarand provides the standard
calendar used by most
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