java xml

First
Parsing an XML Document
To read an XML document, you need a DocumentBuilder object, which you get from a DocumentBuilderFactory, like this:DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
You can now read a document from a file:File f = . . .
Document doc = builder.parse(f);
Alternatively, you can use a URL:URL u = . . .
Document doc = builder.parse(u);
You can even specify an arbitrary input stream:InputStream in = . . .
Document doc = builder.parse(in);
Validating XML Documents