Java programming method to get the distance between latitude and longitude

This article illustrates how Java programming can obtain the distance between latitude and longitude. Share with you for your reference, as follows:

public class GeoUtil {
 
 public static double[] getRectangle(double lng, double lat, long distance) {
  float delta = 111000;
  if (lng != 0 && lat != 0) {
   double lng1 = lng - distance
     / Math.abs(Math.cos(Math.toRadians(lat)) * delta);
   double lng2 = lng + distance
     / Math.abs(Math.cos(Math.toRadians(lat)) * delta);
   double lat1 = lat - (distance / delta);
   double lat2 = lat + (distance / delta);
   return new double[] { lng1, lat1, lng2, lat2 };
  } else {
   //Formula for calculating TODO ZHCH equal to 0
   double lng1 = lng - distance / delta;
   double lng2 = lng + distance / delta;
   double lat1 = lat - (distance / delta);
   double lat2 = lat + (distance / delta);
   return new double[] { lng1, lat1, lng2, lat2 };
  }
 }
 
 public static double getDistanceOfMeter(double lat1, double lng1,
   double lat2, double lng2) {
  double radLat1 = rad(lat1);
  double radLat2 = rad(lat2);
  double a = radLat1 - radLat2;
  double b = rad(lng1) - rad(lng2);
  double s = 2 * Math.asin(Math.sqrt(Math.pow(Math.sin(a / 2), 2)
    + Math.cos(radLat1) * Math.cos(radLat2)
    * Math.pow(Math.sin(b / 2), 2)));
  s = s * EARTH_RADIUS;
  s = Math.round(s * 10000) / 10;
  return s;
 }
 
 private static double rad(double d) {
  return d * Math.PI / 180.0;
 }
 
 private static double EARTH_RADIUS = 6378.137;
}

I hope this article has been helpful to you in Java programming.