public class GeoPoint {
private double lat;
private double lon;
public class GeoException extends IllegalArgumentException {
public GeoException(String m) {
super(m);
}
}
public double checkLongitude(double lon) {
if (lon < -180 || lon > 180) {
throw new GeoException("not a correct longitude");
}
return lon;
}
public double checkLatitude(double lat) {
if (lat < -90 || lat > 90) {
throw new GeoException("not a correct longitude");
}
return lat;
}
public GeoPoint(double lat, double lon) {
this.lat = checkLatitude(lat);
this.lon = checkLongitude(lon);
}
public double getLat() { return this.lat; }
public void setLat(double lat) {
this.lat = checkLatitude(lat);
}
public double getLon() { return this.lon; }
public void setLon(double lat) throws GeoException {
this.lon = checkLongitude(lon);
}
public String toString() {
return (lat >= 0 ? "N" + lat : "S" + -lat) + " " +
(lon >= 0 ? "E" + lon : "W" + -lon);
}
}
class Main {
public static void main(String[] args) throws GeoPoint.GeoException {
GeoPoint geo = new GeoPoint(39.1915045, -96.6070506);
System.out.println(geo.getLat());
System.out.println(geo.getLon());
System.out.println(geo);
}
}
