import java.io.*;
import java.util.*;

/*
* AddressBook class
*/
public class AddressBook {

// Contact array
private Contact[] contacts;

// Constructor
public AddressBook(int size) {
   this.contacts = new Contact[size];
}

// Constructor
public AddressBook(String sizeString) {
   int size = Integer.parseInt(sizeString);
   this.contacts = new Contact[size];
}

// Private helper method to add Contact
private boolean addContact(Contact contact) {
   for (int i = 0; i < contacts.length; i++) {
         if (contacts[i] == null) {
            contacts[i] = contact;
            return true;
         }
   }
   return false;
}

// Method to import Contacts from file
public boolean importContacts(String fileName) {
   System.out.println("Importing contact data from " + fileName + "...");
   File file = new File(fileName);
   try {
         Scanner s = new Scanner(file);
         while (s.hasNextLine()) {
            String line = s.nextLine().trim();
            String[] params = line.split(",");
            if (params.length == 8) {
               String firstName = params[0];
               String lastName = params[1];
               String address = params[2];
               String city = params[3];
               String state = params[4];
               String zip = params[5];
               String phone = params[6];
               String email = params[7];
               Contact contact = new Contact(firstName, lastName, address, city, state, zip, phone, email);
               boolean result = addContact(contact);
               if (result == false) {
                     return result;
               }
            } else {
               return false;
            }
         }
         s.close();
         System.out.println("Contact data imported successfully!");
         return true;
   } catch (FileNotFoundException e) {
         return false;
   }
}

// Method to export Contacts to file
public boolean export(String outputFileName) {
   System.out.println("Exporting contact data to " + outputFileName + "...");
   File file = new File(outputFileName);
   if (file.exists()) {
         Scanner s = new Scanner(System

The goal of the project is to design and implement a web-based inte...