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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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Wraps either an existing OutputStream or an existing Writerand provides
convenience methods for prin
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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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The TimerTask class represents a task to run at a specified time. The task may
be run once or repeat
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A reentrant mutual exclusion Lock with the same basic behavior and semantics as
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This is the central class in the log4j package. Most logging operations, except
configuration, are d
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Used to perform Get operations on a single row. To get everything for a row,
instantiate a Get objec
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