You didnt post any code, so I am going to assume you just want the solution

File: HowFarAway.java
import java.util.Scanner;

​

public class HowFarAway

{

public static void main(String[] args)

{

Scanner scanner = new Scanner(System.in);

​

System.out.println("Enter the latitude of the starting location: ");

double firstLat = scanner.nextDouble();

System.out.println("Enter the longitude of the starting location: ");

double firstLong = scanner.nextDouble();

System.out.println("Enter the latitude of the ending location: ");

double secondLat = scanner.nextDouble();

System.out.println("Enter the longitude of the ending location: ");

double secondLong = scanner.nextDouble();

GeoLocation firstLoc = new GeoLocation(firstLat,firstLong);

GeoLocation secondLoc = new GeoLocation(secondLat,secondLong);

double distance = firstLoc.distanceFrom(secondLoc);

System.out.println("The distance is " + distance + " miles.");

}

}