Main.java Source code

Introduction

Here is the source code for Main.java

Source

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

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;

public class Main {
    public static void main(String[] args) throws Exception {
        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        DocumentBuilder db = dbf.newDocumentBuilder();
        Document dom = db.parse("data.xml");
        Element docEle = dom.getDocumentElement();
        NodeList nl = docEle.getElementsByTagName("staff");

        if (nl != null && nl.getLength() > 0) {
            for (int i = 0; i < nl.getLength(); i++) {
                // get the employee element
                Element el = (Element) nl.item(i);
                String firstname = getTextValue(el, "firstname");
                String lastname = getTextValue(el, "lastname");
                String nickname = getTextValue(el, "nickname");
                int salary = getIntValue(el, "salary");

                System.out.println(firstname);
                System.out.println(lastname);
                System.out.println(nickname);
                System.out.println(salary);
            }
        }
    }

    private static String getTextValue(Element ele, String tagName) {
        String textVal = null;
        NodeList nl = ele.getElementsByTagName(tagName);
        if (nl != null && nl.getLength() > 0) {
            Element el = (Element) nl.item(0);
            textVal = el.getFirstChild().getNodeValue();
        }
        return textVal;
    }

    private static int getIntValue(Element ele, String tagName) {
        return Integer.parseInt(getTextValue(ele, tagName));
    }
}