bearing between 2 gps location

gpsbearing

public static double gpsbearing(double lat1, double long1, double lat2, double long2){
	double dLon= Math.toRadians(long2-long1);
	double latA=Math.toRadians(lat1);
	double latB=Math.toRadians(lat2);
	double y = Math.sin(dLon) * Math.cos(latB);
	double x = Math.cos(latA) * Math.sin(latB) - Math.sin(latA) * Math.cos(latB) * Math.cos(dLon);
	double bearing = Math.toDegrees(Math.atan2(y, x));
	return bearing;
}