Deleting Two Attributes, XML,XML Tutorials,Online XML Tutorial,XML Help Tutorials

Deleting Two Attributes

This Example gives the way to deletes Two Attributes from a DOM document. The Methods which are used for deleting Attributes in the code are given below:-

Element root = doc.getDocumentElement():-allows direct access to the root of the DOM Document.

root.getNodeName():-gets the name of the root.

String s = root.getAttribute("Type"):-It Retrieves an attribute value by name i.e(Type) & store it in String s.

String s1 = root.getAttribute("Id"):-Retrieves an attribute value by "Id" & store it in String s1.

root.removeAttribute("Type"):- It removes the Specified Attribute "Type" from DOM Document.

Xml code for the program generated is:-

<?xml version="1.0" encoding="UTF-8"?>

<Author Type='Bible' Id='Rose-78' Issue='1995'>
</Author>

DeletingAttributes.java


/* 

 * @Program that Deletes Two Attributes

 * DeletingAttributes.java 

 * Author:-RoseIndia Team

 * Date:-10-Jun-2008

 */



import java.io.*;

import javax.xml.parsers.*;

import org.w3c.dom.*;



public class DeletingAttributes {



    public static void main(String[] args) throws Exception {

        boolean validating = false;

        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();

        factory.setValidating(validating);



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

        new DeletingAttributes().delete(doc);

    }



    public void delete(Document doc) {

        Element root = doc.getDocumentElement();

        System.out.println("Name of the root is: " + root.getNodeName());

        // Retrieves an attribute value by name.

        String s = root.getAttribute("Type");

        String s1 = root.getAttribute("Id");

        System.out.println("Attributes before deleting are: " + s + "\t" + s1);

        root.removeAttribute("Type");

        root.removeAttribute("Id");

        // Removes an attribute by name

        String n = root.getAttribute("Type");

        String n1 = root.getAttribute("Id");

        System.out.println("Attributes after deleting are: " + n + "\t" + n1);



    }

}

Output of the program:-

Name of the root is: Author
Attributes before deleting are: Bible	Rose-78
Attributes after deleting are: