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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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An input stream that reads bytes from a file.
File file = ...finally
if (in != null)
in.clos
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A controller for the selection of SelectableChannel objects. Selectable channels
can be registered w
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Locale represents a language/country/variant combination. Locales are used to
alter the presentatio
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This class provides methods that return pseudo-random values.It is dangerous to
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A Handler object accepts a logging request and exports the desired messages to a
target, for example
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