| 1 | public class Country { |
| 2 | private String name; |
| 3 | private String region; |
| 4 | private double lat; |
| 5 | private double lng; |
| 6 | private String flag; |
| 7 | |
| 8 | public Country(String name, String region, double lat, double lng, String flag) { |
| 9 | setName(name); |
| 10 | setRegion(region); |
| 11 | setLat(lat); |
| 12 | setLng(lng); |
| 13 | setFlag(flag); |
| 14 | } |
| 15 | |
| 16 | public void setName(String name) { |
| 17 | this.name = name; |
| 18 | } |
| 19 | |
| 20 | public String getName() { |
| 21 | return name; |
| 22 | } |
| 23 | |
| 24 | public void setRegion(String region) { |
| 25 | this.region = region; |
| 26 | } |
| 27 | |
| 28 | public void setLat(double lat) { |
| 29 | this.lat = lat; |
| 30 | } |
| 31 | |
| 32 | public double getLat() { |
| 33 | return lat; |
| 34 | } |
| 35 | |
| 36 | public void setLng(double lng) { |
| 37 | this.lng = lng; |
| 38 | } |
| 39 | |
| 40 | public double getLng() { |
| 41 | return lng; |
| 42 | } |
| 43 | |
| 44 | public void setFlag(String flag) { |
| 45 | this.flag = flag; |
| 46 | } |
| 47 | |
| 48 | public String getFlag() { |
| 49 | return flag; |
| 50 | } |
| 51 | |
| 52 | public int distanceTo(Country country) { |
| 53 | if ((this.lat == country.lat) && (this.lng == country.lng)) { |
| 54 | return 0; |
| 55 | } else { |
| 56 | double theta = this.lng - country.lng; |
| 57 | 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)); |
| 58 | dist = Math.acos(dist); |
| 59 | dist = Math.toDegrees(dist); |
| 60 | dist = dist * 60 * 1.1515; |
| 61 | // Kilometers |
| 62 | dist = dist * 1.609344; |
| 63 | return dist.intValue(); |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | @Override |
| 68 | public String toString() { |
| 69 | return "Country{" + |
| 70 | "name='" + name + '\'' + |
| 71 | ", region='" + region + '\'' + |
| 72 | ", lat=" + lat + |
| 73 | ", lng=" + lng + |
| 74 | ", flag=" + flag + |
| 75 | '}'; |
| 76 | } |
| 77 | } |