C# (CSharp) IPhoneContactsRepository примеры использования

Пример #1

 public PhoneContactsController()
 {
     _phoneContactsRepository = new PhoneContactsRepository();
 }

Пример #2

 public PhoneContactsController(IPhoneContactsRepository phoneContactsRepository)
 {
     _phoneContactsRepository = phoneContactsRepository;
 }