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Return the contained value, if present, otherwise throw an exception to be
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A BufferedInputStream adds functionality to another input stream-namely, the
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A legacy iteration interface.New code should use Iterator instead. Iterator
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Timers schedule one-shot or recurring TimerTask for execution. Prefer
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A counting semaphore. Conceptually, a semaphore maintains a set of permits. Each
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A reentrant mutual exclusion Lock with the same basic behavior and semantics as
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Patterns are compiled regular expressions. In many cases, convenience methods
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