我试图一个开发application..following是一个片段Android的Java错误
class metro_nodes {
public String station;
public GeoPoint point; }
public class mainscreen extends MapActivity {
/** Called when the activity is first created. */
MapController controller;
double latitude,longitude;
LocationManager loc;
Location lastknownloc;
LocationListener loclistener;
List<GeoPoint> geopoints = new ArrayList<GeoPoint>();
MapView mapView;
private LinkedList<metro_nodes> station_location = new LinkedList<metro_nodes>();
metro_nodes anand_nagar;
anand_nagar.station = "anand_nagar";
}
现在在倒数第二行的捐赠 - 站“标志的语法错误‘’,VariableDeclaratorId预计此令牌后“
如果我把大括号括在这个语句,然后错误得到删除..但然后我得到java lang空指针异常... 什么是problm?
你或许应该尝试做的是涉及到的东西这个复杂的应用之前学习一些基本的Java。这会让你自己更容易。 – Austin