Pretty-printing output from javax.xml.transform.Transformer with only standard java api (Indentation and Doctype positioning)

Question

Using the following simple code:

package test;

import java.io.*;
import javax.xml.transform.*;
import javax.xml.transform.stream.*;

public class TestOutput         


        

Answer 1

To make the output a valid XML document, NO. A valid XML document must start with a processing instruction. See the XML specification http://www.w3.org/TR/REC-xml/#sec-prolog-dtd for more details.