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  1. import java.util.*;
  2.  
  3. class Ideone {
  4.  
  5.     public static class Sprite {
  6.         public static List<Sprite> sprites = null;
  7.         public int age = 0;
  8.  
  9.         private boolean removed = false;
  10.  
  11.         public Sprite() {
  12.             sprites.add(this);
  13.         }
  14.  
  15.         public boolean render() {
  16.         	if (removed)
  17.         	    return false;
  18.             age++;
  19.             if (age > 30)
  20.                 dispose();
  21.             return true;
  22.         }
  23.  
  24.         public void dispose() {
  25.             removed = true;
  26.         }
  27.     }
  28.  
  29.     private static List<Sprite> sprites = Collections.synchronizedList(new ArrayList<Sprite>());
  30.  
  31.     public static void main(String[] args) {
  32.         Sprite.sprites = sprites;
  33.  
  34.         new Sprite();
  35.         new Sprite();
  36.  
  37.         for (int i = 0; i < 60; i++)
  38.             render();
  39.  
  40.     }
  41.  
  42.     public static void render() {
  43.         synchronized(sprites) {
  44.             Iterator<Sprite> iterator = sprites.iterator();
  45.             while (iterator.hasNext())
  46.                 if (!iterator.next().render())
  47.                     iterator.remove();
  48.         }
  49.     }
  50. }
  51.  
Success #stdin #stdout 0.09s 320320KB
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https://ideone.com/IfhlyI
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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