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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 charset is a named mapping between Unicode characters and byte sequences.
Every Charset can decode
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Locale represents a language/country/variant combination. Locales are used to
alter the presentatio
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A PriorityQueue holds elements on a priority heap, which orders the elements
according to their natu
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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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A reentrant mutual exclusion Lock with the same basic behavior and semantics as
the implicit monitor
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