- public abstract double x();
- public abstract double y(int index);
-}
\ No newline at end of file
+ public abstract double x() throws AltosUIDataMissing;
+ public abstract double y(int index) throws AltosUIDataMissing;
+ public abstract int id(int index) throws AltosUIDataMissing;
+ public abstract String id_name(int index) throws AltosUIDataMissing;
+}