Help with accessing ArrayList

For a class project we are suppose to create code that once given a directory will return all files in said directory in a order from most recently modified. I have decided to use an array list that will store objects that can be used to refer to both the name and date of a file. This way i can order the objects correctly and then print out their names. My problem is placing the objects into the array after they have been created in a way that allows me to retrieve them. The code i currently have places them into the array, and upon debugging shows that all the correct info is in the array, but i cannot access this data in the main. It says "cannot find symbol - method getFileName().
I'm not sure if im doing something that will not work, but if there are any small tweaks i can make to access the data I need it will be greatly appreciated. Thank you so much in advance!

This is what I have so far, have not worked on ordering them yet:

Code:

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import java.io.*;

import java.util.*;

public class Pch20_x1ab{
    public static ArrayList<Object> FileList = new ArrayList<Object>();   
   
   

    public static void main(String[] args)  {
       
        System.out.print("Enter a directory or a file: ");
        Scanner input = new Scanner(System.in);
        File directory = new File(input.nextLine());
       
       
        if (directory.exists())
            getFileName(directory);
        else System.out.println("Error");
       
        Object x = FileList.get(1);
        System.out.println(x.getFileName());
       
    }
   
    public static void getFileName(File file) {
       
       
       
       
        if (file.isDirectory()) {
            File[] files = file.listFiles();
           
            for (int i = 0; i < files.length; i++){
               
                if (files[i].isDirectory())
                    getFileName(files[i]);
                else {
                    MakeFile x = new MakeFile(files[i]);
                    FileList.add(x);
                    System.out.println(x.getFileName());
                }
            }
        }
        else{
           
            FileList.add(new MakeFile(file));
        }
       
        }
       
    }
class MakeFile{
       
        long dateCreated;
        String fileName;
        MakeFile(){
            dateCreated = 0;
            fileName = "";
        };
        MakeFile(File files){
            fileName = files.getPath();
            dateCreated = files.lastModified();
           
           

            }
        String getFileName(){
            return fileName;
        }
        long getDate(){
            return dateCreated;
        }
       
        }

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