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XML Sax sample #lab
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| <?xml version="1.0" encoding="utf-8"?> | |
| <company name="... Applied Physics Laboratory" | |
| shortName="JHU/APL" | |
| mission="Enhancing national security ..."> | |
| <head name="Richard Roca" phone="410-778-1234"/> | |
| <department name="Air and Missile Defense" | |
| mission="Enhance the operational ..."> | |
| <group name="A1E" numStaff="20"/> | |
| <group name="A1F" numStaff="15"/> | |
| <group name="A1G" numStaff="25"/> | |
| </department> | |
| <department name="Research and Technology..." | |
| mission="Assure that ..."> | |
| <group name="RSI" numStaff="15"/> | |
| <group name="RSS" numStaff="10"/> | |
| </department> | |
| </company> |
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| package io.github.benas.labs.javase.xml; | |
| import org.w3c.dom.Document; | |
| import org.w3c.dom.Element; | |
| import org.w3c.dom.NodeList; | |
| import org.xml.sax.SAXException; | |
| import javax.xml.parsers.DocumentBuilder; | |
| import javax.xml.parsers.DocumentBuilderFactory; | |
| import javax.xml.parsers.ParserConfigurationException; | |
| import java.io.File; | |
| import java.io.IOException; | |
| public class XmlMain { | |
| public static void main(String[] args) throws ParserConfigurationException, IOException, SAXException { | |
| DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); | |
| DocumentBuilder builder = factory.newDocumentBuilder(); | |
| String sourceFile = args[0]; | |
| Document document = builder.parse(new File(sourceFile)); | |
| Element root = document.getDocumentElement(); | |
| System.out.println(root.getTagName()); | |
| System.out.printf(" name: %s%n", root.getAttribute("name")); | |
| System.out.printf(" short name: %s%n", root.getAttribute("shortName")); | |
| System.out.printf(" mission: %s%n", root.getAttribute("mission")); | |
| NodeList departments = root.getElementsByTagName("department"); | |
| for (int i = 0; i < departments.getLength(); i++) { | |
| Element department = (Element) departments.item(i); | |
| System.out.println(department.getTagName()); | |
| System.out.printf(" name: %s%n", department.getAttribute("name")); | |
| System.out.printf(" mission: %s%n", department.getAttribute("mission")); | |
| System.out.printf(" staff: %s%n", countStaff(department)); | |
| } | |
| } | |
| public static int countStaff(Element department) { | |
| int departmentStaff = 0; | |
| NodeList groups = department.getElementsByTagName("group"); | |
| for (int i = 0; i < groups.getLength(); i++) { | |
| Element group = (Element) groups.item(i); | |
| int groupStaff = Integer.parseInt(group.getAttribute("numStaff")); | |
| departmentStaff = departmentStaff + groupStaff; | |
| } | |
| return (departmentStaff); | |
| } | |
| } |
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