public static void crearLloguer() {
    Document myDocument = readDocument();
    if (myDocument == null) {
        Element elem = new Element("Lloguers");
        myDocument = new Document(elem);
    }
    Element lloguers = myDocument.getRootElement();
    Element lloguer = new Element("Lloguer");

    BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
    String[] m = new String[6];
    int precio = 0;
    try {
          System.out.print ("Model: ");
          System.out.flush();
          precio = Integer.parseInt(stdin.readLine());
          switch (precio) {
            case 54:
                m[0] = "Economic";
            break;
            case 71:
                m[0] = "Semi-Luxe";
            break;
            case 82:
                m[0] = "Luxe";
            break;
            case 139:
                m[0] = "Limusina";
            break;
          }

          System.out.print ("Sub-Model: ");
          System.out.flush();
          m[1] = stdin.readLine();
          System.out.print ("Dies: ");
          System.out.flush();
          m[2] = stdin.readLine();
          System.out.print ("Num Vehicles: ");
          System.out.flush();
          m[3] = stdin.readLine();
          System.out.print ("Descompte: ");
          System.out.flush();
          m[4] = stdin.readLine();
    } catch (java.io.IOException e) {
          e.printStackTrace();
    }

    int dias = Integer.parseInt(m[2]);
    int vehiculos = Integer.parseInt(m[3]);
    double descuento = Double.parseDouble(m[4]);
    //TOTAL
    double total = (double)precio*descuento*(double)vehiculos/(double)100+(double)precio*(double)dias*(double)vehiculos;

    lloguer.addContent(new Element("model").addContent(m[0]));
    lloguer.addContent(new Element("sub-model").addContent(m[1]));
    lloguer.addContent(new Element("dies").addContent(m[2]));
    lloguer.addContent(new Element("numvehicles").addContent(m[3]));
    lloguer.addContent(new Element("descompte").addContent(m[4]));
    lloguer.addContent(new Element("total").addContent(String.valueOf(total)));

    llistar(lloguer);
    lloguers.addContent(lloguer);

    saveFile(myDocument);
}