Main.java Source code

Java tutorial

Introduction

Here is the source code for Main.java

Source

import java.io.File;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class Main {
    public static void main(String[] args) throws Exception {
        DocumentBuilder dBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
        Document doc = dBuilder.parse(new File("data.xml"));
        System.out.println("Root element :" + doc.getDocumentElement().getNodeName());
        if (doc.hasChildNodes()) {
            printNote(doc.getChildNodes(), 1);
        }
    }

    private static void printNote(NodeList nodeList, int depth) {
        for (int count = 0; count < nodeList.getLength(); count++) {
            Node tempNode = nodeList.item(count);
            if (tempNode.getNodeType() == Node.ELEMENT_NODE) {
                System.out.println(depth + "Node Name =" + tempNode.getNodeName());
                System.out.println(depth + "Node Value =" + tempNode.getTextContent());
                if (tempNode.hasAttributes()) {
                    NamedNodeMap nodeMap = tempNode.getAttributes();
                    for (int i = 0; i < nodeMap.getLength(); i++) {
                        Node node = nodeMap.item(i);
                        System.out.println("attr name : " + node.getNodeName());
                        System.out.println("attr value : " + node.getNodeValue());
                    }
                }
                if (tempNode.hasChildNodes()) {
                    printNote(tempNode.getChildNodes(), depth + 1);
                }
                System.out.println(depth + "Node Name =" + tempNode.getNodeName());
            }
        }
    }
}