With this example we are going to demonstrate how to create an empty DOM Document, that represents the entire HTML or XML document. The DOM Document is the root of the document tree, and provides the primary access to the document’s data. In short, to create an empty DOM Document you should:
- Obtain a new instance of a DocumentBuilderFactory, that is a factory API that enables applications to obtain a parser that produces DOM object trees from XML documents.
- Create a new instance of a DocumentBuilder, using
newDocumentBuilder()API method of DocumentBuilderFactory. - Call
newDocument()API method of DocumentBuilder to obtain a new instance of a DOM Document object. - Get the value of this Node, using
getNodeValue()API method of Node.
Let’s take a look at the code snippet that follows:
package com.javacodegeeks.snippets.core;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
public class CreateEmptyDOMDocument {
public static void main(String[] args) throws Exception {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = dbf.newDocumentBuilder();
Document doc = builder.newDocument();
System.out.println(doc.getNodeValue());
}
}
Output:
null
This was an example of how to create an empty DOM Document in Java.
