public AddressBook add()
{
AddressBook ab = new AddressBook();
Console.Write("\nWhat is the first name? ");
ab.fname = Console.ReadLine();
Console.Write("\nWhat is the last name? ");
ab.lname = Console.ReadLine();
ID++;
ab.id = Convert.ToString(ID);
return ab;
}
public AddressBook[] delete(AddressBook[] ab)
{
string choice;
string choice2;
string fname;
string lname;
string id;
int deletePlace;
Console.Write("\ndelete by first name, last name, id, or quit? ");
choice = Console.ReadLine();
choice = choice.ToLower();
do
{
switch (choice)
{
case "first name":
Console.Write("\nWhat is the first name to delete? ");
fname = Console.ReadLine();
for(int i = 0; i < ab.Length; i++)
{
if (fname == ab[i].fname)
{
Console.WriteLine("\nFIRST NAME: " + ab[i].fname +
"\nLAST NAME: " + ab[i].lname +
"\nID: " + ab[i].id);
deletePlace = i;
Console.Write("\nDelete this person Y/N? ");
choice2 = Console.ReadLine();
choice2 = choice2.ToUpper();
if (choice2 == "Y")
{
ab[deletePlace].fname = "";
ab[deletePlace].lname = "";
ab[deletePlace].id = "";
choice = null;
Console.WriteLine("\nDELETED");
delete(ab);
break;
} else
{
Console.WriteLine("\nGOODBYE");
break;
}
}
}
break;
case "last name":
Console.Write("\nWhat is the last name to delete? ");
lname = Console.ReadLine();
for (int i = 0; i < ab.Length; i++)
{
if (lname == ab[i].lname)
{
Console.WriteLine("\nFIRST NAME: " + ab[i].fname +
"\nLAST NAME: " + ab[i].lname +
"\nID: " + ab[i].id);
deletePlace = i;
Console.Write("\nDelete this person Y/N? ");
choice2 = Console.ReadLine();
choice2 = choice2.ToUpper();
if (choice2 == "Y")
{
ab[deletePlace].fname = "";
ab[deletePlace].lname = "";
ab[deletePlace].id = "";
}
else
{
Console.WriteLine("\nGOODBYE");
break;
}
}
}
break;
case "id":
Console.Write("\nWhat is the id to delete? ");
id = Console.ReadLine();
for (int i = 0; i < ab.Length; i++)
{
if (id == ab[i].id)
{
Console.WriteLine("\nFIRST NAME: " + ab[i].fname +
"\nLAST NAME: " + ab[i].lname +
"\nID: " + ab[i].id);
deletePlace = i;
Console.Write("\nDelete this person Y/N? ");
choice2 = Console.ReadLine();
choice2 = choice2.ToUpper();
if (choice2 == "Y")
{
ab[deletePlace].fname = "";
ab[deletePlace].lname = "";
ab[deletePlace].id = "";
}
else
{
Console.WriteLine("\nGOODBYE");
break;
}
}
}
break;
case "quit":
Console.WriteLine("\nGOODBYE");
break;
default:
Console.WriteLine("\nINVALID OPTION");
break;
}
} while (choice != "quit");
return ab;
}
public void menu()
{
string choice;
int position = 0;
AddressBook[] ab = new AddressBook[10];
for (int i = 0; i < ab.Length; i++)
{
ab[i] = new AddressBook();
ab[i].fname = "";
ab[i].lname = "";
ab[i].id = "";
}
do
{
Console.Write("\nadd, delete, search or quit? ");
choice = Console.ReadLine();
choice = choice.ToLower();
switch (choice)
{
case "add":
ab[position] = add();
Console.WriteLine("\nFIRST NAME: " + ab[position].fname +
"\nLAST NAME: " + ab[position].lname +
"\nID: " + ab[position].id +
"\nHAS BEEN ADDED");
position++;
break;
case "delete":
ab = delete(ab);
break;
case "search":
search(ab);
break;
default:
Console.WriteLine("\nINVALID OPTION");
break;
}
} while (choice != "quit");
}
void search(AddressBook[] ab)
{
string choice;
string fname;
string lname;
string id;
do
{
Console.Write("\nsearch by first name, last name, id, or quit? ");
choice = Console.ReadLine();
choice = choice.ToLower();
switch (choice)
{
case "first name":
Console.Write("\nWhat is the first name? ");
fname = Console.ReadLine();
for (int i = 0; i < ab.Length; i++)
{
if (fname == ab[i].fname)
{
Console.WriteLine("\nFIRST NAME: " + ab[i].fname +
"\nLAST NAME: " + ab[i].lname +
"\nID: " + ab[i].id);
}
}
break;
case "last name":
Console.Write("\nWhat is the last name? ");
lname = Console.ReadLine();
for (int i = 0; i < ab.Length; i++)
{
if (lname == ab[i].lname)
{
Console.WriteLine("\nFIRST NAME: " + ab[i].fname +
"\nLAST NAME: " + ab[i].lname +
"\nID: " + ab[i].id);
}
}
break;
case "id":
Console.Write("\nWhat is the id? ");
id = Console.ReadLine();
for (int i = 0; i < ab.Length; i++)
{
if (id == ab[i].id)
{
Console.WriteLine("\nFIRST NAME: " + ab[i].fname +
"\nLAST NAME: " + ab[i].lname +
"\nID: " + ab[i].id);
}
}
break;
case "quit":
Console.WriteLine("\nGOODBYE");
break;
}
} while (choice != "quit");
}
static void Main(string[] args)
{
AddressBook ab = new AddressBook();
ab.menu();
}