For example, XML generated using simple string output in a Windows environment will probably be encoded in .

Normally, this isn't an issue, especially if the XML is both produced and processed within the same organization.

Instead it read from an doesn't match the actual content.

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The downside of DOM, of course, is that it's all in memory, and the DOM implementation adds quite a bit to the memory footprint of the data.

Let's dive right into code: "); Document Builder Factory dbf = Document Builder Instance(); Document Builder db = Document Builder(); Document dom = db.parse(new Input Source(xml)); println("root element name = " Document Element()Node Name()); And that's all you need to parse a simple XML string.

However, chances are good that you're not parsing simple literal strings, so read on …

The DOM API is filled with design patterns, especially creational patterns: package consists solely of interfaces), which can let a misbehaved program wreak havoc in a shared environment such as an app-server.

Let validation do what it can, but ultimately your program must explicitly verify that an XML file contains the correct data.

The Document Type Definition is part of the XML specification.Practical XML: Parsing So you've built some XML, now what do you do? After all, it doesn't do you much good as a bunch of bytes on a disk.In my experience, a DOM document is the most usable form for parsed XML, because it can be accessed multiple times once parsed.Whether that content is actually usable by your application is another question — just like a syntactically correct program may be full of logic bugs.I once saw an attempt to use XSD to validate relationships in a complex object graph; the developer gave up after creating a schema document.Except for one small problem: the Namespace spec was introduced in 1999, while the DOM level 1 spec was released in 1998 and knew nothing of namespaces.