Ask the user for a filename. Display the oldest car for every manufacturer from that file. If two cars have the same year, compare based on the VIN. I am having trouble with my code import java.io.File; import java.io.FileNotFoundException; import java.util.ArrayList; import java.util.Scanner; class Car { String manufacturer; String model; int year; String vin; public Car(String manufacturer, String model, int year, String vin) { this.manufacturer = manufacturer; this.model = model; this.year = year; this.vin = vin; } public String getManufacturer() { return manufacturer; } public void setManufacturer(String manufacturer) { this.manufacturer = manufacturer; } public String getModel() { return model; } public void setModel(String model) { this.model = model; } public int getYear() { return year; } public void setYear(int year) { this.year = year; } public String getVin() { return vin; } public void setVin(String vin) { this.vin = vin; } } public class Demo { public static void main(String[] args) throws FileNotFoundException { Scanner keyboard = new Scanner(System.in); System.out.println("Enter filename"); String input = keyboard.nextLine(); File file = new File(input); Scanner scanner = new Scanner(file); scanner.nextLine(); ArrayList list = new ArrayList<>(); while (scanner.hasNextLine()) { String[] arr = scanner.nextLine().split(" "); if (arr.length >= 4) { Car car = new Car(arr[0], arr[1], Integer.parseInt(arr[2]), arr[3]); list.add(car); } } for (int end = list.size() - 1; end >= 1; end--) { for (int current = 0; current <= end - 1; current++) { Car car1 = list.get(current); Car car2 = list.get(current + 1); int n = car1.manufacturer.toLowerCase().compareTo(car2.manufacturer.toLowerCase()); if (n == 0) { n = car1.year - car2.year; } if (n == 0) { n = car1.vin.compareTo(car2.vin); } if (n > 0) { Car temp = list.get(current); list.set(current, list.get(current + 1)); list.set(current + 1, temp); } } } // Find the oldest car for each manufacturer and print the results System.out.println("Oldest cars by make"); Car oldest = null; int count = 0; for (int i = 0; i < list.size() - 1; i++) { if (oldest == null) { oldest = list.get(i); } if (!list.get(i).manufacturer.equals(list.get(i + 1).manufacturer) || i == list.size() - 2) { if (i == list.size() - 2 && list.get(i).manufacturer.equals(list.get(i + 1).manufacturer)) { oldest = (oldest.year < list.get(i + 1).year) ? oldest : list.get(i + 1); } count++; System.out.println(String.format("%15s%25s%5s %s", oldest.manufacturer, oldest.model, oldest.year, oldest.vin)); oldest = null; } } System.out.println(count + " result(s)"); } } it is supposed to display    Enter filename car-list-3.txtENTER Oldest cars by make           Acura                   Legend 1988 YV1672MK8A2784103          Aptera                    Typ-1 2009 19UUA56952A698282    Aston Martin                      DB9 2006 JTDJTUD36ED662608            Audi                    5000S 1985 JN1CV6EK1CM209730          Austin              Mini Cooper 1964 1G6KD57Y86U095255         Bentley           Continental GT 2006 19UUA655X4A245718             BMW                 7 Series 1993 1FM5K7B80FG198521           Buick                  LeSabre 1986 5FRYD4H82EB970786        Cadillac                Fleetwood 1992 WAUSVAFA0AN244068       Chevrolet                 Corvette 1957 WBA3V7C57F5095471        Chrysler           Town & Country 1994 WBANU53558B610150          Daewoo                    Lanos 1999 2HNYD18412H169358        Daihatsu                  Charade 1992 JH4CL95958C112754           Dodge                     D150 1993 19XFA1F37BE391950           Eagle                    Talon 1993 WUAAU34289N943973         Ferrari              F430 Spider 2006 5N1AR2MM5EC533806            Fiat                      500 2012 1G6DL67A880617705            Ford              Thunderbird 1965 1HGCR2F32DA757676             Geo                    Metro 1992 1G6KE54Y34U777569             GMC            Suburban 1500 1992 19XFB2F59CE612826          Holden             VS Commodore 1995 WAUBGBFC7CN714505           Honda                    Civic 1980 JTDKN3DU8A0870976          Hummer                       H1 1999 5FNRL5H20BB474763         Hyundai                   Sonata 2002 JA4AS2AW2DU975492        Infiniti                        Q 1994 WAUDH78E97A027816           Isuzu                  Impulse 1992 WBALM5C5XAE656665          Jaguar                XJ Series 1994 1FMJK1HT9FE090336            Jeep                 Wrangler 1992 WA1AY94L38D656200             Kia                   Sephia 2001 3GYFNCEY3BS991891 .........      Volkswagen                   Beetle 1965 3GYFNKE6XBS962560           Volvo                      740 1992 1G6AB5SX1F0577055 56 result(s) however, it is displaying Enter filename car-list-3.txtENTER Oldest cars by make 0 result(s) Can an expert help explain what error is in my code and fix it so that it works accordingly