question: public static double distanceInMeters ( final double latP1 , final double latP2 , final double lonP1 , final double lonP2 ) { double distRad = Math . acos ( Math . sin ( toRadians ( latP1 ) ) * Math . sin ( toRadians ( latP2 ) ) + Math . cos ( toRadians ( latP1 ) ) * Math . cos ( toRadians ( latP2 ) ) * Math . cos ( toRadians ( lonP1 - lonP2 ) ) ) ; final double distAsDegree = toDegrees ( distRad ) ; return distAsDegree * 60 * 1.1515 * 1609.344 ; }
target:  Computes the distance between two coordinates in meters.