Answer the following questions and finish the rest of the coding project

There are questions that need to be answered. Please answer it with the best of your abilities. Those are the pictures I attached below. There are 2 class files that need to be completed. I will provide them for you and please code in Java, as well as read the instructions in the pictures to understand the assignment. The 2 class files will be below this.

ZipFile Required Code:

import java.io.File;

public class ZipFile
{
   private ArrayList<String> fileList;
   private String outputFile;
   private String srcPath;
   private File file;
   
   public ZipFile(File file) 
   {
      fileList = new ArrayList<String>();
// TODO
}
   
       public void fillFileList(File f)
       {
       if (f.isFile())
       {
           String currFilePath = f.getAbsoluteFile().toString();
String relativeFilePath;
           if (this.srcPath.length() < currFilePath.length())
               relativeFilePath = currFilePath.substring(this.srcPath.length() + 1, currFilePath.length());
           else
relativeFilePath = currFilePath.substring(this.srcPath.length(), currFilePath.length());
         
fileList.add(relativeFilePath);
}
                
       if (f.isDirectory())
       {
           // TODO
}
       }
   
       public void makeZip(File dir)
       {
       // TODO  
}
}

Zipper Required Code:

import java.awt.Desktop;
import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.Pane;
import javafx.scene.layout.VBox;
import javafx.stage.FileChooser;
import javafx.stage.DirectoryChooser;
import javafx.stage.Stage;
import java.util.*;
import java.util.zip.*;
import java.io.*;
 
public final class Zipper extends Application 
{
    private Desktop desktop = Desktop.getDesktop();
 
@Override
public void start(final Stage stage) 
    {
        stage.setTitle("File Chooser");
 
        final FileChooser fileChooser = new FileChooser();
        final DirectoryChooser directoryChooser = new DirectoryChooser();
        final Button openFileButton = new Button("Select File");
        final Button openDirectoryButton = new Button("Select Directory");
 
openFileButton.setOnAction(new EventHandler<ActionEvent>() 
        {
           @Override
public void handle(final ActionEvent e) 
            {
               File src = fileChooser.showOpenDialog(null);
                if (src != null)
                   createZip(src);  
                else
System.out.println("No File Selected.");
}
        });
 
openDirectoryButton.setOnAction(new EventHandler<ActionEvent>() 
        {
           @Override
public void handle(final ActionEvent e) 
            {
               File src = directoryChooser.showDialog(null);
                if (src != null)
                    createZip(src);
                else
System.out.println("No Directory Selected.");
}
        });
 
        final GridPane inputGridPane = new GridPane();
 
GridPane.setConstraints(openFileButton, 0, 0);
GridPane.setConstraints(openDirectoryButton, 1, 0);
inputGridPane.setHgap(6);
inputGridPane.setVgap(6);
inputGridPane.getChildren().addAll(openFileButton, openDirectoryButton);
 
        final Pane rootGroup = new VBox(12);
rootGroup.getChildren().addAll(inputGridPane);
rootGroup.setPadding(new Insets(12, 12, 12, 12));
 
stage.setScene(new Scene(rootGroup));
stage.show();
}
    
    private static void createZip(File src)
    {
        // TODO
}
 
    public static void main(String[] args) {
        Application.launch(args);
}
}