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Return the contained value, if present, otherwise throw an exception to be
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A class for turning a byte stream into a character stream. Data read from the
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ArrayList is an implementation of List, backed by an array. All optional
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A collection designed for holding elements prior to processing. Besides basic
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An int value that may be updated atomically. See the java.util.concurrent.atomic
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General file manipulation utilities. Facilities are provided in the following
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