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  1.     import java.util.ArrayList;
  2. 	import java.util.Collections;
  3. 	import java.util.Comparator;
  4.  
  5. 	class Main {
  6. 		public static class Player {
  7. 			private final float distance;
  8.  
  9. 			public Player (final float position) {
  10. 				this.distance = position;			
  11. 			}
  12.  
  13. 			public float getDistanceFrom () {
  14. 				return distance;
  15. 			}
  16.  
  17. 			@Override
  18. 			public String toString() {
  19. 				return "Player [distance=" + distance + "]";
  20. 			}
  21. 		}
  22.  
  23. 		public static void main(String[] args) throws Exception {
  24. 			final ArrayList<Player> players = new ArrayList<Player> ();
  25.  
  26. 			players.add (new Player (2));
  27. 			players.add (new Player (5));
  28. 			players.add (new Player (-3));
  29. 			players.add (new Player (1));
  30.  
  31. 			Collections.sort(players, new Comparator<Player> () {
  32. 				@Override
  33. 				public int compare(Player o1, Player o2) {
  34. 					final float distance1 = o1.getDistanceFrom();
  35. 					final float distance2 = o2.getDistanceFrom();
  36. 					return (int) Math.signum (distance1 - distance2);
  37. 				}			
  38. 			});
  39. 			System.out.println(players);
  40. 		}
  41. 	}
Success #stdin #stdout 0.06s 215552KB
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Standard input is empty
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[Player [distance=-3.0], Player [distance=1.0], Player [distance=2.0], Player [distance=5.0]]
https://ideone.com/aTViJS
language:
Java (12.0.1)
created:
11 years ago
visibility:
public

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