import java.io.FileReader;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathFactory;
import org.xml.sax.InputSource;
public class GuestListCounter {
public static void main(String[] args) throws Exception {
XPathFactory factory = XPathFactory.newInstance();
XPath xPath = factory.newXPath();
Number shows = (Number) xPath.evaluate("count(/schedule/show)",
new InputSource(new FileReader("tds.xml")),
XPathConstants.NUMBER);
System.out.println("Document has " + shows.intValue() + " shows.");
}
}