for (int i = 0; i < propertiesList.size(); i++) { Properties p = (Properties) propertiesList.get(i); p.remove(key);
for (int i = 0; i < propertiesCoordinates.size(); i++) { Point point = (Point) propertiesCoordinates.get(i); Properties p = getPropertiesAt(point); if (p != null) p.remove(key);
    private void deleteFromSelectedTiles(String key) {        for (int i = 0; i < propertiesList.size(); i++) {            Properties p = (Properties) propertiesList.get(i);            p.remove(key);        }    }