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GregorianCalendar is a concrete subclass of Calendarand provides the standard
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An Executor that provides methods to manage termination and methods that can
produce a Future for tr
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A Java virtual machine.
A VirtualMachine represents a Java virtual machine to which this Java vir
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This Graphics2D class extends the Graphics class to provide more sophisticated
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A Window object is a top-level window with no borders and no menubar. The
default layout for a windo
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