package gisServer;import com.esri.arcgisws.EsriUnits;
import com.esri.arcgisws.MapServerBindingStub;
import com.esri.arcgisws.PointN;
public class HelloWorldClient{
        public static void main(String[] args) {
                String wsService = "http://pc-201107111431:8399/arcgis/rest/services/WGS84-GEOGRAPHIC/MapServer";
//                MapServerBindingStub mapservice = new MapServerBindingStub(new java.net.URL(wsService), null);
                MapServerBindingStub mapservice = new MapServerBindingStub(wsService,"arcgismanager","123");                String mapname = mapservice.getDefaultMapName();
                PointN pnt0 = new PointN();
                pnt0.setX(-120.0);
                pnt0.setY(30.0);
                PointN pnt1 = new PointN();
                pnt1.setX(-110.0);
                pnt1.setY(35.0);
                double distance = mapservice.computeDistance(mapname, pnt0, pnt1, EsriUnits.esriMiles);        }}
我要怎么才能运行这段代码?