Not to delete specified files -- how it work -> simply run it with Java and it'll guide you

DontDeleteThoseFiles.java

/**
 * Author: Mustafa Jamal
 * 
 * This program for deleting not selected files.
 */

import java.util.List;
import java.util.ArrayList;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.File;
import java.nio.file.Paths;

public class DontDeleteThoseFiles {

    private static String[] pArgs;
    private static String NOT_UPLOADED_TXT;
    private static String DIR_PATH;
    private static File DIR_ABSOLUTE_PATH;
    private static List<File> DELETE_FILES_NAMES = new ArrayList<File>();
    private static List<String> KEEP_RECORDS = new ArrayList<String>();
    private static ArrayList<String> keptFiles = new ArrayList<String>();
    private static String DIR_ABSOLUTE_PATH_STRING;
    
    private static void errCheck1() {
        if (pArgs.length != 2) {
            System.err.println((char)27 +
                    "[31mAdd this file in the directory/Folder you gonna use to delete from... This will be fixed in up comming versions!\n" +
                    "you have to specify one .txt file and one Directory_Path for the app to run.\n e.g., $ java RemoveUploadedGooglePhotos [wanted_Files.txt] [Dir Path]\n" + 
                    " ----------------------------------------------------------\n" +
                    "|  java RemoveUploadedGooglePhotos.java wanted_Files.txt . |\n" + 
                    " ----------------------------------------------------------" + (char)27 + "[0m");
            System.exit(1);
        }
    }

    private static void errCheck2() {
        if (!(DIR_PATH.startsWith(".") || DIR_PATH.startsWith(System.getProperty("file.separator")))) {
            System.err.println((char) 27 + "[31m\nYou MuST specify a valid path.\n (e.g., [.image] or [/image]\n"
                    + (char) 27 + "[0m");
            System.exit(2);
        }
    }

    private static List<String> unUploadedFiles() {
        try {
            BufferedReader reader = new BufferedReader(new FileReader(NOT_UPLOADED_TXT));
            String line;
            while ((line = reader.readLine()) != null) {
                if (line.contains("\n") || line.contains(" ")) {
                    KEEP_RECORDS.add(DIR_ABSOLUTE_PATH_STRING + line);
                }
            }
            keptFiles.add("DontDeleteThoseFiles.java");
            keptFiles.add("DontDeleteThoseFiles.class");
            keptFiles.add(NOT_UPLOADED_TXT);
            KEEP_RECORDS.addAll(keptFiles);
            reader.close();
            return KEEP_RECORDS;
        } catch (Exception e) {
            System.err.format("Exception occurred trying to read '%s'.", NOT_UPLOADED_TXT);
            e.printStackTrace();
            return null;
        }
    }

    private static void printUnuploadedFiles() {
        System.out.println("\n" + (KEEP_RECORDS.size() - keptFiles.size()) + " Files in the: " + NOT_UPLOADED_TXT);
        for (String file : KEEP_RECORDS) {
            if (!keptFiles.contains(file)) {
                System.out.println("\t" + file);
            }
        }
    }

    private static File[] directoryFileList() {
        return DIR_ABSOLUTE_PATH.listFiles();
    }
    
    private static List<File> willDeleteFilesList() {
        for (File file: directoryFileList()) {
            if (!KEEP_RECORDS.contains(DIR_ABSOLUTE_PATH_STRING + file.getName().toString())) {
                DELETE_FILES_NAMES.add(file);
            }
        }
        return DELETE_FILES_NAMES;
    }

    private static void deleteFiles() {
        if (!willDeleteFilesList().isEmpty()) {
            System.out.println("\nDeleted Files:");
            for (File file: DELETE_FILES_NAMES) {
                System.out.println("\t" + file.getName());
                file.delete();
            }
        } else {
            System.out.println("\nNo Files To Delete\n");
        }
    }

    public static void main(String[] args) {
        pArgs = args;
        errCheck1();
        NOT_UPLOADED_TXT = args[0];
        DIR_PATH = args[1];
        errCheck2();
        File file = new File(DIR_PATH);
        DIR_ABSOLUTE_PATH = new File(file.getAbsolutePath());
        DIR_ABSOLUTE_PATH_STRING = DIR_ABSOLUTE_PATH.getName()+ System.getProperty("file.separator");
        KEEP_RECORDS = unUploadedFiles();
        printUnuploadedFiles();
        deleteFiles();
    }
}