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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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HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
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The TimerTask class represents a task to run at a specified time. The task may
be run once or repeat
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This class provides random read access to a zip file. You pay more to read the
zip file's central di
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This Graphics2D class extends the Graphics class to provide more sophisticated
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