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Return the contained value, if present, otherwise throw an exception to be
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A BufferedInputStream adds functionality to another input stream-namely, the
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A ConnectException is thrown if a connection cannot be established to a remote
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Provides a client-side TCP socket.
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LinkedHashMap is an implementation of Map that guarantees iteration order. All
optional operations a
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A Set is a data structure which does not allow duplicate elements.
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A Window object is a top-level window with no borders and no menubar. The
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