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Collection is the root of the collection hierarchy. It defines operations on
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This class provides methods that return pseudo-random values.It is dangerous to
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A parser that parses a text string of primitive types and strings with the help
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A Set is a data structure which does not allow duplicate elements.
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Factory and utility methods for Executor, ExecutorService,
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A border layout lays out a container, arranging and resizing its components to
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