Source Code : Reading an XML Document and create user-defined object from DOM

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Reading an XML Document and create user-defined object from DOM

       

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

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.xml.sax.InputSource;

public class ListMoviesXML {
  public static void main(String[] args) throws Exception {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    factory.setIgnoringComments(true);

    factory.setIgnoringElementContentWhitespace(true);
    factory.setValidating(true);
    DocumentBuilder builder = factory.newDocumentBuilder();

    Document doc = builder.parse(new InputSource("y.xml"));
    Element root = doc.getDocumentElement();

    Element movieElement = (Element) root.getFirstChild();
    Movie m;
    while (movieElement != null) {
      m = getMovie(movieElement);
      String msg = Integer.toString(m.year);
      msg += ": " + m.title;
      msg += " (" + m.price + ")";
      System.out.println(msg);
      movieElement = (Element) movieElement.getNextSibling();
    }
  }

  private static Movie getMovie(Element e) {
    String yearString = e.getAttribute("year");
    int year = Integer.parseInt(yearString);

    Element tElement = (Element) e.getFirstChild();
    String title = getTextValue(tElement).trim();

    Element pElement = (Element) tElement.getNextSibling();
    String pString = getTextValue(pElement).trim();
    double price = Double.parseDouble(pString);

    return new Movie(title, year, price);
  }

  private static String getTextValue(Node n) {
    return n.getFirstChild().getNodeValue();
  }
}

class Movie {
  public String title;

  public int year;

  public double price;

  public Movie(String title, int year, double price) {
    this.title = title;
    this.year = year;
    this.price = price;
  }
}

   
    
    
    
    
    
  

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