import java.util.*;
import org.apache.xmlrpc.*;
import org.apache.xmlrpc.docs.*;

public class JavaClient3 {
 public static void main (String [] args) {
  try {

     XmlRpcClient server = new XmlRpcClient("http://localhost/RPC2"); 
     Vector params = new Vector();
     params.addElement(new Integer(17));
     params.addElement(new Integer(13));

     Object result = server.execute("sample.sum", params);

     int sum = ((Integer) result).intValue();
     System.out.println("The sum is: "+ sum);

   } catch (Exception exception) {
     System.err.println("JavaClient: " + exception);
   }
  }
}