Advanced Programming

/* >>> Mobile phone Contacts Application You are an IT Support Administrator Specialist at SAU and are charged with the task of creating a program that implements a simple mobile phone contacts management with the following capabilities: • Add new contact • Modify contact • Search contact • Remove contact • Print all contact list information */ package Mobile_phone_Contacts_Application; import java.util.ArrayList; import java.util.Scanner; public class MobilePhone { private ArrayList<Contact> myContacts; static Scanner userInput = new Scanner(System.in); public MobilePhone() { super(); this.myContacts = new ArrayList<Contact>(); } public void addNewContact() { String name, phoneNumber; boolean contact = true; System.out.println("Enter new contact name:"); name = userInput.nextLine(); for (int i=0;i<myContacts.size();i++) { if (myContacts.get(i).getName().equals(name)) { contact = false; System.out.println("Contact is already on file."); System.out.println("Cannot add, "+name+" already on file"); break; } } if(contact) { System.out.println("Enter phone number:"); phoneNumber = userInput.nextLine(); Contact newContact = new Contact(name, phoneNumber); myContacts.add(newContact); System.out.println("New contact added:"); System.out.println("Name = "+ name +" , phone = "+ phoneNumber); } } public void updateContact() { String phoneNumber; String newName; Contact newContact = new Contact(); boolean updateContact = true; System.out.println("Enter existing contact name:"); String oldName = userInput.nextLine(); for (int i=0;i<myContacts.size();i++) { if (myContacts.get(i).getName().equals(oldName)) { myContacts.remove(i); updateContact = false; System.out.println("Enter new contact name:"); newName = userInput.nextLine(); System.out.println("Enter new contact phone number:"); phoneNumber = userInput.nextLine(); newContact = new Contact(newName, phoneNumber); myContacts.add(i, newContact); System.out.println(oldName+" was replaced with "+newName); System.out.println("Successfully updated record."); break; } } if(updateContact){ System.out.println("Contact not found."); } } public void removeContact() { boolean removeContact = true; String oldName; System.out.println("Enter existing contact name:"); oldName = userInput.nextLine(); for (int i=0;i<myContacts.size();i++) { if (myContacts.get(i).getName().equals(oldName)) { myContacts.remove(i); System.out.println(oldName + " was deleted."); System.out.println("Successfully deleted."); removeContact = false; break; } } if(removeContact) { System.out.println("This name is not in the system"); } } public void searchContact() { String name; boolean searchContact = true; System.out.println("Enter existing contact name:"); name = userInput.nextLine(); for (int i=0;i<myContacts.size();i++) { if (myContacts.get(i).getName().equals(name)) { System.out.println("Name: "+name+", phone number: "+ myContacts.get(i).getPhoneNumber()); searchContact = false; break; } } if(searchContact) { System.out.println("Contact is not found in the list."); } } public void printContacts() { System.out.println("Contact List"); for (int i=0;i<myContacts.size();i++) { System.out.println((i+1)+". "+ myContacts.get(i).getName()+" -> " + myContacts.get(i).getPhoneNumber()); } } }