XML

DocumentBuilder   :  Defines the API to obtain DOM Document instances from an XML document.
DocumentBuilderFactory :    Defines a factory API that enables applications
to obtain a parser that produces DOM object trees from XML documents.
SAXParser   :  Defines the API that wraps an XMLReader implementation class.
SAXParserFactory :    Defines a factory API that enables applications to
configure and obtain a SAX based parser to [...]

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