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GregorianCalendar is a concrete subclass of Calendarand provides the standard
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Doubly-linked list implementation of the List and Dequeinterfaces. Implements
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Walk the nodes of the tree left-to-right or right-to-left. Note that in
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Provides an abstract class to be subclassed to create an HTTP servlet suitable
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Abstract superclass of object loading (and querying) strategies. This class
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