public static boolean checkIsKilled(Integer i, Integer j) {

		Point curPoint = new Point(i, j);

		for (Ship ship : ships) {
			for (Point point : ship.getPosition()) {
				if (point.equals(curPoint)) {
					if (ship.isKilled()) {
						ships.remove(ship);
						myBattleField.remove(ship);
						return true;
					} else {
						return false;
					}
				}
			}
		}
		return false;
	}