@@ -0,0 +1,225 @@
+import java.util.*;%0A%0Apublic class Screen%0A%7B%0A    public Screen ()%0A    %7B%0A        _tiles = new Vector%3CTile%3E();%0A    %7D%0A%0A    public final void updateTile (Coordinate position, int id)%0A    %7B%0A%0A    %7D%0A%0A    private Vector%3CTile%3E _tiles;%0A%7D

Update Screen.java