Read from console

Scanner in = new Scanner(System.in);
String name = in.nextLine();
int number = in.nextInt();

//input from file
FileInputStream inputStream = new FileInputStream(name);
    int max = 0;
    while (inputStream.available() > 0) //пока остались непрочитанные байты
    {
        int data = inputStream.read(); //прочитать очередной байт
        if (data>max){
            max = data;
        }
    }
    System.out.println(max);
    inputStream.close();
}