Считывание чисел из файла

String fileName = "C:\\Users\\Борщ А В\\Desktop\\new.txt";
FileInputStream file = new FileInputStream(fileName);
        ArrayList<Integer> arr = new ArrayList<>();
        while (file.available()>0) {
            arr.add(file.read());
        }
        System.out.println(arr);
        file.close();

Scanner scan = new Scanner(new File("C:\\Users\\Борщ А В\\Desktop\\new.txt"));
        while (scan.hasNext()){
            int x = scan.nextInt();
            //...
        }

Scanner scan= new Scanner(new FileInputStream(fileName));

byte[] text_array = Files.readAllBytes(text_path);
 
String text = new String(text_array, "ISO-8859-1");
System.out.println(text);

Arrays.stream(
          text.split("\n")
)
          .map(Integer::parseInt)
          .forEach(item -> System.out.println("Number: " + item));

String fileName = "C:\\Users\\Борщ А В\\Desktop\\new.txt";
        FileInputStream file = new FileInputStream(fileName);
        Scanner scan= new Scanner(file);
        ArrayList<Integer> arr = new ArrayList<>();
        arr.add(scan.nextInt());

byte[] text_array = Files.readAllBytes(text_path);
 
String text = new String(text_array, "ISO-8859-1");
System.out.println(text);

byte[] text_array = Files.readAllBytes(fileName);
String text = new String(text_array, "ISO-8859-1");
 
ArrayList<Integer> arr = (ArrayList<Integer>) Arrays.stream(
        text.split("\r\n")
)
        .map(Integer::parseInt)
        .collect(Collectors.toList());

List<Integer> list = Files.lines(Paths.get("test.txt"))
                .map(Integer::parseInt)
                .collect(Collectors.toList());

arr.add(scan.nextInt());

byte[] text_array = Files.readAllBytes(fileName);
String text = new String(text_array, "ISO-8859-1");
 
ArrayList<Integer> arr = (ArrayList<Integer>) Arrays.stream(text.split("\r\n"))
        .map(Integer::parseInt)
        .collect(Collectors.toList());