There are many methods by which you can write an XML document. You can do so by a simple method using the PrintWriter object. With this method you can use the out.println() method which is the standard way of writing content to a file.

The other way to write an XML document is to use the XStream object. By using this object you can serialize the Java objects to an XML format. For this you have to include the class com.thoughtworks.xstream.XStream.

Once you create an object of this class you can use the toXML() method to serialize the object. This method takes the class to be serialized as a parameter.

Using Java API for XML Processing is the easiest way to write an XML file. With this API you can create document objects and create an XML file into it.

Or you can load an existing XML document in to that document object and then manipulate the XML document using the methods available for the document object.

If you are creating an XML file using the document object then you can use the methods like createTextNode() and appendChild() to create a text node and add them to the root node.

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