static void Main(string[] args)
{
PhoneBook phonebook = new PhoneBook();
InputOutputHandler inputoutputhandler = new InputOutputHandler();
int choice;
choice = inputoutputhandler.ShowMenu();;// shows the menu and returns the user's choice
while (choice != 5)
{
CallSwitch();
choice = inputoutputhandler.ShowMenu();//updation in while loop
}
void CallSwitch()
{
switch (choice)
{
case 1: phonebook.AddContact(inputoutputhandler.GetContacts()); break;
case 2: inputoutputhandler.ShowContacts(phonebook.Display()); break;
case 3: phonebook.DeleteContact(inputoutputhandler.GetName()); break;
case 4: inputoutputhandler.ShowContacts(phonebook.Display(), phonebook.FindContact(inputoutputhandler.GetName())); break;
case 5: break;
default: Console.WriteLine(" You have entered a wrong option, Please Try again"); break;
}
}
}