Example

public abstract class MenuEntry {

    private String title;

    public MenuEntry(String title) {
        this.title = title;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public abstract void run();
}

import java.util.ArrayList;
import java.util.Scanner;

public class Menu {
    private static final String MENU_PATTERN = "%s - %s\n";
    private ArrayList<MenuEntry> entries = new ArrayList<MenuEntry>();
    private boolean isExit = false;

    public Menu() {
        entries.add(new MenuEntry("Exit") {
            @Override
            public void run() {
                isExit = true;
            }
        });
    }

    public void run() {
        Scanner sc = new Scanner(System.in);
        while (!isExit) {
            printMenu();

            try {
                String line = sc.nextLine();

                int choice = Integer.parseInt(line);
                MenuEntry entry = entries.get(choice - 1);
                entry.run();

            } catch (NumberFormatException e) {
                System.out.print("Wrong input!");
            } catch (IndexOutOfBoundsException e2) {
                System.out.print("Wrong input!");
            }
        }
        sc.close();
    }

    public Menu addEntry(MenuEntry entry) {
        int index = entries.size() - 1;
        entries.add(index, entry);
        return this;

    }

    private void printMenu() {
        StringBuffer buffer = new StringBuffer();
        buffer.append("\nMenu:\n");
        for (int i = 0; i < entries.size(); i++) {
            MenuEntry entry = entries.get(i);
            String entryFormatted = String.format(MENU_PATTERN, (i + 1), entry.getTitle());
            buffer.append(entryFormatted);
        }
        System.out.print(buffer.toString());
    }

}

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.util.ArrayList;
import java.util.Scanner;
import java.lang.InterruptedException;

public class Monitoring extends Thread {

    String path;
    ArrayList<String> fileList = new ArrayList<String>();

    Monitoring(String path) {
        this.path = path;
    }

    public void addFiles() {
        Scanner scanner = null;

        try {
            scanner = new Scanner(new FileInputStream(path));
            boolean b = true;
            while (scanner.hasNextLine()) {
                fileList.add(scanner.nextLine());
                System.out.println(fileList);
                b = false;

            }
        }
        catch (FileNotFoundException ex) {
            System.out.println("Файл по этому пути: " + path + " не был найден.");
        }
        finally {
            if (scanner != null) {
                scanner.close();
            }
        }
    }
    public void compareFiles () {
         for (int a = 0; a < fileList.size(); a++){
             if (fileList.get(0).equals(fileList.get(a))){
                 System.out.println("Yes");
             } else {
                  System.out.println("No");
             }
         }
    }


    public void run() {
        this.addFiles();
    }
}

import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Scanner;

import test.Menu;
import test.MenuEntry;
import test.Player;
import test.Playlist;

public class Tracking {

    public static void main(String args[]) throws InterruptedException {
        Menu menu = new Menu();
        System.out.print("Enter the file name" + "\n");
        Scanner scanner = new Scanner(System.in);
        boolean replay = true;
        String path = scanner.nextLine();
        Monitoring file = new Monitoring(path);

        menu.addEntry(new MenuEntry("Start") {
            @Override
            public void run() {

            try {
            Thread file1 = new Thread(file);
            Thread.sleep(1500);
            file1.start();

        } catch (InterruptedException ex) {
            System.out.print(" has been stopped!" + "\n");
            return;
        }
            }

        });

        menu.addEntry(new MenuEntry("Compare") {
            @Override
            public void run() {
                file.compareFiles();
            }
        });

        menu.run();

    }
}