title: add jdom.jar in my java project
body: <p>I want to add jdom.jar in my project, I do project-> properties-> Java Build Path->libraries-> add external jar jdom-2.0.5, but the import is not considered. how can I make available jdom.jar. this is the example that i want to test</p>
  
  <pre><code> import java.io.FileWriter;
   import java.io.IOException;
   import org.jdom.Attribute;
   import org.jdom.Document;
   import org.jdom.Element;
   import org.jdom.output.Format;
   import org.jdom.output.XMLOutputter;
  
    public class WriteXMLFile {
      public static void main(String[] args) {
  
         try {
  
      Element company = new Element("company");
      Document doc = new Document(company);
      doc.setRootElement(company);
  
      Element staff = new Element("staff");
      staff.setAttribute(new Attribute("id", "1"));
      staff.addContent(new Element("firstname").setText("yong"));
      staff.addContent(new Element("lastname").setText("mook kim"));
      staff.addContent(new Element("nickname").setText("mkyong"));
      staff.addContent(new Element("salary").setText("199999"));
  
      doc.getRootElement().addContent(staff);
  
      Element staff2 = new Element("staff");
      staff2.setAttribute(new Attribute("id", "2"));
      staff2.addContent(new Element("firstname").setText("low"));
      staff2.addContent(new Element("lastname").setText("yin fong"));
      staff2.addContent(new Element("nickname").setText("fong fong"));
      staff2.addContent(new Element("salary").setText("188888"));
  
      doc.getRootElement().addContent(staff2);
  
      // new XMLOutputter().output(doc, System.out);
      XMLOutputter xmlOutput = new XMLOutputter();
  
      // display nice nice
      xmlOutput.setFormat(Format.getPrettyFormat());
      xmlOutput.output(doc, new FileWriter("c:\\file.xml"));
  
      System.out.println("File Saved!");
    } catch (IOException io) {
      System.out.println(io.getMessage());
    }
  }
     }
  </code></pre>