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Provides access to system-related information and resources including standard
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This class generates cryptographically secure pseudo-random numbers. It is best
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This class contains various methods for manipulating arrays (such as sorting and
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A Comparator is used to compare two objects to determine their ordering with
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An iterator over a sequence of objects, such as a collection.If a collection has
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A java.util.Queue that additionally supports operations that wait for the queue
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