import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import org.w3c.dom.Document;
import javax.xml.parsers.ParserConfigurationException;
import org.xml.sax.SAXException;
import java.io.IOException;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Element;

class Program03 {
	private static Document buildDoc() {
		Document doc = null;
		try {
			doc = tryBuildDoc();
		}catch(ParserConfigurationException ex) {
			System.err.println("Hiba a dokumentum létrehozása során!");
		}catch(SAXException ex) {
			System.err.println("Hiba értelmezés során!");
		}catch(IOException ex) {
			System.err.println("Hiba a fájl elérése során!");
		}
		return doc;
	}
	private static Document tryBuildDoc() 
			throws ParserConfigurationException, SAXException,
			IOException {
		DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
		DocumentBuilder db = dbf.newDocumentBuilder();
		Document doc = db.parse("dolgozok.xml");

		//opcionális, de ajánlott:
		doc.getDocumentElement().normalize();
		return doc;
	}
	private static void writeXml(Document doc) {
		String root = doc.getDocumentElement().getNodeName();
		
		NodeList nodeList = doc.getElementsByTagName("dolgozo");
		
		for(int i = 0; i < nodeList.getLength(); i++) {
			Node node = nodeList.item(i);
			
			System.out.println("Aktuális elem: " + node.getNodeName());
			if( node.getNodeType() == Node.ELEMENT_NODE) {
				Element element = (Element) node;
				
				String az = element.getAttribute("id");
				String nev = 
				element.getElementsByTagName("nev").item(0).getTextContent();
				
				String telepules = 
				element.getElementsByTagName("telepules").item(0).getTextContent();
				
				String fizetes = 
				element.getElementsByTagName("fizetes").item(0).getTextContent();
				
				System.out.printf("%s:%s:%s:%s\n", az, nev, telepules, fizetes);
				
			}
		}
	}
	public static void main(String[] args) {
		Document doc = buildDoc();
		writeXml(doc);
	}
}