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Provides a client-side TCP socket.
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A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
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HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
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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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Walk the nodes of the tree left-to-right or right-to-left. Note that in
descending iterations, next
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