I am trying to write an ArrayList of objects to a text file. I would also like it to only write the first 43 lines. My code so far:

                ArrayList<seat> seats1 = new ArrayList<>();
                try {
                FileWriter writer = new FileWriter(
                        "seats.txt");


                for (int i = 0; i < 43; i++) {
                    writer.write(seats1.get(i).toString()
                            + System.lineSeparator());

                }
                writer.close();

            } catch (Exception e) {
                e.printStackTrace();


        }

This writes the first 43 lines of the array but it outputs the object hashcode rather than a string.