public static void main(String[] args) {

        ArrayList<Integer> al1 = new ArrayList<>();
        ArrayList<Integer> al2 = new ArrayList<>();
        List<Integer> al3 = new ArrayList<>();


        String filename = "";
        int somenum = 5;
        int a = 0;
        int zad3 = 0;
        int choice = 0;
        Scanner sc = new Scanner(System.in);
        String str;
        System.out.println("Введите путь:");


        if (sc.hasNextLine()) {
            filename = sc.nextLine();
        } else {
            System.out.println("Введено неверное значение");
        }

        System.out.println("Записать значения в перпвый массив или второй?");

        if (sc.hasNextInt())
            choice = sc.nextInt();
        else
            System.out.println("введено неверное значение");

        File f = new File(filename);
        StringBuilder sb = new StringBuilder();
        if (f.exists()) {
            try {
                try (BufferedReader br = new BufferedReader(new FileReader(f.getAbsoluteFile()))) {
                    String s;
                    while ((s = br.readLine()) != null) {
                        String[] strs = s.split(" ");
                        for (String str1 : strs) {
                            str = str1;
                            al3.add(Integer.valueOf(str));
                        }
                    }
                }
            } catch (IOException e) {
                throw new RuntimeException();
            }
        }


        if (choice == 1) {
            for (int i = 0; i < al3.size(); i++) {
                if (al3.get(i) == 1) {
                    al1.add(i, al3.get(i));
                }
            }

            for (int i = 0; i < al3.size(); i++) {
                if (al3.get(i) == 0) {
                    al1.add(i, al3.get(i));
                }
            }
        }

        if (choice == 2) {
            for (int i = 0; i < al1.size(); i++) {
                if (al1.get(i) == 1) {
                    al2.add(i, al1.get(i));
                }
            }

            for (int i = 0; i < al3.size(); i++) {
                if (al3.get(i) == 0) {
                    al2.add(i, al3.get(i));
                }
            }
        }


        try {
            if (!f.exists()) f.createNewFile();
            try (PrintWriter pw = new PrintWriter(f.getAbsoluteFile())) {
                if (choice == 1) {
                    pw.print(al1);
                }
                if (choice == 2) {
                    pw.print(al2);
                }
            }
        } catch (IOException e) {
            throw new RuntimeException();
        }

    }