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A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
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An interface for an object which represents a database table entry, returned as
the result of the qu
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An ordered collection (also known as a sequence). The user of this interface has
precise control ove
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A Properties object is a Hashtable where the keys and values must be Strings.
Each property can have
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Defines a general exception a servlet can throw when it encounters difficulty.
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