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An output stream that writes bytes to a file. If the output file exists, it can
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Provides access to system-related information and resources including standard
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HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
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SortedSet is a Set which iterates over its elements in a sorted order. The order
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A counting semaphore. Conceptually, a semaphore maintains a set of permits. Each
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A Window object is a top-level window with no borders and no menubar. The
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