java

import java.io.*; import java.util.*; public class Task1XX { static Scanner console = new Scanner(System.in); public static void main(String[] args) throws FileNotFoundException { AddressBook addressBook = new AddressBook(); String str; String str1; String str2; int choice; int loc; int month; loadAddressBook(addressBook); addressBook.sort(); showMenu(); choice = console.nextInt(); console.nextLine(); while (choice != 9) { switch (choice) { case 1: System.out.print("Enter the last name of the person: "); str = console.nextLine(); System.out.println(); loc = addressBook.search(str); if (loc != -1) System.out.println(str + " is in the address book"); else System.out.println(str + " is not in the address book"); break; case 2: System.out.print("Enter the last name of the person: "); str = console.nextLine(); System.out.println(); loc = addressBook.search(str); if (loc != -1) addressBook.printAt(loc); else System.out.println(str + " is not in the address book"); break; case 3: System.out.print("Enter the month number: "); month = console.nextInt(); console.nextLine(); System.out.println(); addressBook.printNameInTheMonth(month); break; case 4: System.out.print("Enter starting last name: "); str1 = console.nextLine(); System.out.println(); System.out.print("Enter ending last name: "); str2 = console.nextLine(); System.out.println(); addressBook.printNamesBetweenLastNames(str1, str2); break; case 5: System.out.print("Enter person type Family, Friend, Business: "); str = console.nextLine(); System.out.println(); addressBook.printNamesWithStatus(str); break; case 6: addressBook.print(); break; case 7: saveData(addressBook); break; default: System.out.println("Invalid choice."); } showMenu(); choice = choice = console.nextInt(); console.nextLine(); } char response; System.out.print("Save data Yes (Y/y) No(N/n)?: "); response = console.nextLine().charAt(0); System.out.println(); if (response == 'y' || response == 'Y') saveData(addressBook); } public static void loadAddressBook(AddressBook adBook) throws FileNotFoundException { Scanner inFile = new Scanner(new File("Data.txt")); // define variables if needed ExtPerson temp; while (inFile.hasNext()) { //add your code below temp = new ExistingPerson(); // insert the new record into the addressbook } } public static void saveData(AddressBook adBook) throws FileNotFoundException { //add your code below } public static void showMenu() { System.out.println("Welcome to the address book program."); System.out.println("Choose among the following options:"); System.out.println("1: To see if a person is in the address book"); System.out.println("2: Print the information of a person"); System.out.println("3: Print the names of person having birthday in a particular month"); System.out.println("4: Print the names of persons between two last names"); System.out.println("5: Print the names of persons having a particular status"); System.out.println("6: Print the address book"); System.out.println("7: Save data"); System.out.println("9: Terminate the program"); } }