/*
* 1. Add the required classes to make the following code compile.
* HINT: Use a Dictionary in the AddressBook class to store Contacts. The key should be the contact's email address.
*
* 2. Run the program and observe the exception.
*
* 3. Add try/catch blocks in the appropriate locations to prevent the program from crashing
* Print meaningful error messages in the catch blocks.
*/
static void Main(string[] args)
{
// Create a few contacts
Contact bob = new Contact()
{
FirstName = "Bob",
LastName = "Smith",
Email = "*****@*****.**",
Address = "100 Some Ln, Testville, TN 11111"
};
Contact sue = new Contact()
{
FirstName = "Sue",
LastName = "Jones",
Email = "*****@*****.**",
Address = "322 Hard Way, Testville, TN 11111"
};
Contact juan = new Contact()
{
FirstName = "Juan",
LastName = "Lopez",
Email = "*****@*****.**",
Address = "888 Easy St, Testville, TN 11111"
};
// List<Dictionary<string, Contact>> addressBook = new List<Dictionary<string, Contact>>();
// Create an AddressBook and add some contacts to it
AddressBook addressBook = new AddressBook();
addressBook.AddContact(bob);
addressBook.AddContact(sue);
addressBook.AddContact(juan);
try{
// Try to add a contact a second time
addressBook.AddContact(sue);
}
catch (Exception)
{
Console.WriteLine("That contact is already in the AddressBook");
}
// Create a list of emails that match our Contacts
// This is for my reference as not Console.Writing it
List <string> emails = new List <string>()
{
"*****@*****.**",
"*****@*****.**",
"*****@*****.**",
};
// Insert an email (that does NOT match a Contact) into position [1]
// in list - ie ... after Sue So her infor should show up on first loop
// I DON'T put the try before this line because it has no
// problem inserting this email in the list and so skips over the catch
// The exception shows up when I TRY to print out the contact info for not.in email
emails.Insert(1, "*****@*****.**");
try{
// Search the AddressBook by email and print the information about each Contact
foreach (string email in emails)
{
Contact contact = addressBook.GetByEmail(email);
Console.WriteLine("----------------------------");
Console.WriteLine($"Name: {contact.FullName}");
Console.WriteLine($"Email: {contact.Email}");
Console.WriteLine($"Address: {contact.Address}");
}
}
catch (Exception) {
Console.WriteLine("There is no contact infor for that email");
}
}
static void Main(string[] args)
{
// Create a few contacts
Contact bob = new Contact()
{
FirstName = "Bob", LastName = "Smith",
Email = "*****@*****.**",
Address = "100 Some Ln, Testville, TN 11111"
};
Contact sue = new Contact()
{
FirstName = "Sue", LastName = "Jones",
Email = "*****@*****.**",
Address = "322 Hard Way, Testville, TN 11111"
};
Contact juan = new Contact()
{
FirstName = "Juan", LastName = "Lopez",
Email = "*****@*****.**",
Address = "888 Easy St, Testville, TN 11111"
};
// Create an AddressBook and add some contacts to it
AddressBook addressBook = new AddressBook();
addressBook.AddContact(bob);
addressBook.AddContact(sue);
addressBook.AddContact(juan);
// Try to addd a contact a second time
addressBook.AddContact(sue);
// Create a list of emails that match our Contacts
List <string> emails = new List <string>()
{
"*****@*****.**",
"*****@*****.**",
"*****@*****.**",
};
// Insert an email that does NOT match a Contact
emails.Insert(1, "*****@*****.**");
// Search the AddressBook by email and print the information about each Contact
foreach (string email in emails)
{
try
{
Contact contact = addressBook.GetByEmail(email);
Console.WriteLine("----------------------------");
Console.WriteLine($"Name: {contact.FullName}");
Console.WriteLine($"Email: {contact.Email}");
Console.WriteLine($"Address: {contact.Address}");
}
catch (System.NullReferenceException)
{
Console.WriteLine($"The email {email} was not found in the address book");
}
}
}
