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Return the contained value, if present, otherwise throw an exception to be
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This class contains various methods for manipulating arrays (such as sorting and
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Calendar is an abstract base class for converting between a Date object and a
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JarFile is used to read jar entries and their associated data from jar files.
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An interface for the creation of Connection objects which represent a connection
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A border layout lays out a container, arranging and resizing its components to
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