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Provides access to system-related information and resources including standard
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A ConnectException is thrown if a connection cannot be established to a remote
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Formats and parses dates in a locale-sensitive manner. Formatting turns a Date
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A Set is a data structure which does not allow duplicate elements.
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Stack is a Last-In/First-Out(LIFO) data structure which represents a stack of
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An interface for the creation of Connection objects which represent a connection
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