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Wraps an existing Writer and buffers the output. Expensive interaction with the
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A thread is a thread of execution in a program. The Java Virtual Machine allows
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A controller for the selection of SelectableChannel objects. Selectable channels
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This class provides methods that return pseudo-random values.It is dangerous to
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TreeSet is an implementation of SortedSet. All optional operations (adding and
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A task that returns a result and may throw an exception. Implementors define a
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