src/Country.java

   1 import javax.swing.*;
   2
   3 public class Country {
   4     private String name;
   5     private String region;
   6     private double lat;
   7     private double lng;
   8     private ImageIcon flag;
   9
  10     public Country(String name, String region, double lat, double lng) {
  11         setName(name);
  12         setRegion(region);
  13         setLat(lat);
  14         setLng(lng);
  15     }
  16
  17     public void setName(String name) {
  18         this.name = name;
  19     }
  20
  21     public String getName() {
  22         return name;
  23     }
  24
  25     public void setRegion(String region) {
  26         this.region = region;
  27     }
  28
  29     public void setLat(double lat) {
  30         this.lat = lat;
  31     }
  32
  33     public void setLng(double lng) {
  34         this.lng = lng;
  35     }
  36
  37     public int distanceTo(Country country) {
  38         if ((this.lat == country.lat) && (this.lng == country.lng)) {
  39             return 0;
  40         } else {
  41             double theta = this.lng - country.lng;
  42             Double dist = Math.sin(Math.toRadians(this.lat)) * Math.sin(Math.toRadians(country.lat)) + Math.cos(Math.toRadians(this.lat)) * Math.cos(Math.toRadians(country.lat)) * Math.cos(Math.toRadians(theta));
  43             dist = Math.acos(dist);
  44             dist = Math.toDegrees(dist);
  45             dist = dist * 60 * 1.1515;
  46             // Kilometers
  47             dist = dist * 1.609344;
  48             return dist.intValue();
  49         }
  50     }
  51
  52     @Override
  53     public String toString() {
  54         return "Country{" +
  55                 "name='" + name + '\'' +
  56                 ", region='" + region + '\'' +
  57                 ", lat=" + lat +
  58                 ", lng=" + lng +
  59                 '}';
  60     }
  61 }