Adding an Attribute in DOM Document

In this section, you will learn how to adds an attribute in a DOM document.

Adding an Attribute in DOM Document

Adding an Attribute in DOM Document

     

This Example shows you how to adds an attribute in a DOM document. JAXP (Java API for XML Processing) is an interface which provides parsing of xml documents. Here the Document BuilderFactory is used to create new DOM parsers. There are some of the methods used in code given below for adding attribute:-

getDocumentElement():- allows direct access to the root node of the document.

root.getAttribute("Id"):-allows to retrieve attributes on  Id.
root.setAttribute("Id", "05MC34"):-allows to set o5Mc34 on the Id

Xml code for the program generated is:-

<?xml version="1.0" encoding="UTF-8"?>
<Author Type='Bible' Id='Rose-78' Issue='1995'>
</Author>

Addingattribute.java :-

 

/* 
 * @Program that Adds an Attribute to an Element
 * Addingattribute.java 
 * Author:-RoseIndia Team
 * Date:-09-Jun-2008
 */

import java.io.*;
import javax.xml.parsers.*;
import org.w3c.dom.*;

public class Addingattribute {

  public static void main(String[] argsthrows Exception {
  //boolean validating = false;
  DocumentBuilderFactory factory = 
   DocumentBuilderFactory.newInstance
();
  //factory.setValidating(validating);

  Document doc = factory.newDocumentBuilder().parse(
  new 
File("Document3.xml"));
  new Addingattribute().addAttribute(doc);
  }

  public void addAttribute(Document doc) {
  Element root = doc.getDocumentElement();
  System.out.print("Attributes of Id before Adding is: ");
  System.out.println(root.getAttribute("Id"));
  //Adds an attributes to the element ISBN
  root.setAttribute("Id""05MC34");
  System.out.print("Attributes of Id after Adding is: ");
  System.out.println(root.getAttribute("Id"));
}
}

Output of the program:-

Attributes of Id before Adding is: Rose-78
Attributes of Id after Adding is: 05MC34


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