Addressbook(Edit and Delete)

[tupas1998]

Hi can i ask how to put Edit and Delete here!
i tried to but it only Delete or Edit the last entry :(
Please Help Thanks <3
im noob :(
#include <iostream>
#include <string.h>
#include <cstdlib>
#include <stdio.h>

using namespace std;

class AddressBook{

public :
AddressBook()
{
count = 0;
}

void AddEntry();
void DisplayAll();
void DisplayEntry(int i); // Displays one entry
void EditEntry();
void DeleteEntry();
void SearchEntry();

int MainMenu();
struct Entry_Struct
{
char firstName[100] ;
char lastName[100] ;
char contact [100] ;
char address[100] ;
};

Entry_Struct entries[101];
unsigned int count;
};


void AddressBook::AddEntry()
{
cout << "\t\t\t\tEntry number " << (count + 1) << " : " << endl;

cout << "\t\t\t\tEnter First Name: ";
cin >> entries[count].firstName;

cout << "\t\t\t\tEnter Last Name: ";
cin >> entries[count].lastName;

cout << "\t\t\t\tEnter Contact Number : ";
cin >> entries[count].contact;

cout << "\t\t\t\tEnter Address(without Spaces): ";
cin >> entries[count].address;

++count; // tally total entry count
}

void AddressBook::EditEntry()
{
int num;
cout<<"\t\t\t\tEnter entry number:";
cin>>num;
--count;
if (num == count)
{
--count;
++count;
cout << "\t\t\t\tEntry number " << (count) << " : " << endl;
cout << "\t\t\t\tEnter First Name: ";
cin >> entries[count].firstName;
cout << "\t\t\t\tEnter Last Name: ";
cin >> entries[count].lastName;
cout << "\t\t\t\tEnter Contact Number : ";
cin >> entries[count].contact;
cout << "\t\t\t\tEnter Address: ";
cin >> entries[count].address;
}
}

void AddressBook::DeleteEntry()
{
int num;
cout<<"\t\t\t\tEnter entry number:";
cin>>num;
if (num == count)
{
--count;
cout<<"\t\t\t\tDeleted";
}

}


void AddressBook::DisplayEntry(int i)
{
cout << "\t\t\t\tEntry[" << i + 1 << "] : " << endl; // states # of entry
cout << "\t\t\t\tFirst name : " << entries[i].firstName << endl;
cout << "\t\t\t\tLast name : " << entries[i].lastName << endl;
cout << "\t\t\t\tContact number : " << entries[i].contact << endl;
cout << "\t\t\t\tAddress: " << entries[i].address << endl;
}

void AddressBook::DisplayAll()
{
cout << "\t\t\t\tNumber of entries : " << count << endl;

for(int i = 0;i < count;++i)
DisplayEntry(i);
}

void AddressBook::SearchEntry()
{
char lastname[100];
cout << "\t\t\t\tEnter last name : ";
cin >> lastname;

for(int i = 0;i < count;++i)
{
if(strcmp(lastname, entries[i].lastName) == 0)
{
cout << "\t\t\t\tFound ";
DisplayEntry(i);
cout << endl;
}
}
}


// Your addressbok
AddressBook my_book;

int MainMenu()
{
int num;
bool bQuit = false;
// Put all your code into a while loop.
while(bQuit == false)
{



cout << "\t\t\t\t+-------------------------------------+" << endl;
cout << "\t\t\t\t Address Book Menu " << endl;
cout << "\t\t\t\t " << endl;
cout << "\t\t\t\t 1- Add contact " << endl;
cout << "\t\t\t\t 2- Edit contact " << endl;
cout << "\t\t\t\t 3- Delete contact " << endl;
cout << "\t\t\t\t 4- View contacts " << endl;
cout << "\t\t\t\t 5- Search addressbook by last name " << endl;
cout << "\t\t\t\t 6- Exit " << endl;
cout << "\t\t\t\t " << endl;
cout << "\t\t\t\t +-------------------------------------+" << endl;

cout << endl;
cout << "\t\t\t\t Choose an Option: ";
cin >> num;
cout << endl;

if (num == 1)
my_book.AddEntry();
else if (num ==2)
my_book.EditEntry();
else if (num ==3)
my_book.DeleteEntry();
else if (num == 4)
my_book.DisplayAll();
else if (num == 5)
my_book.SearchEntry();
else if (num == 6)
bQuit = true;
else
cout << "\t\t\t\tInvalid choice. Please try again" << endl;

cout << endl;
}

return 0;
}

int main (){
MainMenu();
return 0;
}

[SakurasouBusters]

If you pay attention to the assignment more, it would be pretty easy.

#include <iostream>
#include <string>
#include <cstdlib>

using namespace std;

const int GLOBAL_SIZE = 150; // (*)

struct MyEntry
{
	char firstName[GLOBAL_SIZE];
	char lastName[GLOBAL_SIZE];
	char contact[GLOBAL_SIZE];
	char address[GLOBAL_SIZE];
};

bool addEntry(MyEntry myEntry[GLOBAL_SIZE], int &count)
{
	if(count >= GLOBAL_SIZE) return false;

	cout << "Entry [" << count + 1 << "] : " << endl;
	cout << "Enter first name : "; cin.getline(myEntry[count].firstName, sizeof(myEntry[count].firstName));
	cout << "Enter last name : "; cin.getline(myEntry[count].lastName, sizeof(myEntry[count].lastName));
	cout << "Enter contact : "; cin.getline(myEntry[count].contact, sizeof(myEntry[count].contact));
	cout << "Enter address : "; cin.getline(myEntry[count].address, sizeof(myEntry[count].address));

	count++;
	return true;
}

bool editEntry(MyEntry myEntry[GLOBAL_SIZE], int id, int count)
{
	id--;
	if(id < 0 || id >= count) return false;

	cout << "Enter first name : "; cin.getline(myEntry[id].firstName, sizeof(myEntry[id].firstName));
	cout << "Enter last name : "; cin.getline(myEntry[id].lastName, sizeof(myEntry[id].lastName));
	cout << "Enter contact : "; cin.getline(myEntry[id].contact, sizeof(myEntry[id].contact));
	cout << "Enter address : "; cin.getline(myEntry[id].address, sizeof(myEntry[id].address));

	return true;
}

bool displayEntry(MyEntry myEntry[GLOBAL_SIZE], int id, int count)
{
	id--;
	if(id < 0 || id >= count) return false;

	cout << "Entry [" << id + 1 << "] : " << endl;
	cout << "+ First name : " << myEntry[id].firstName << endl;
	cout << "+ Last name : " << myEntry[id].lastName << endl;
	cout << "+ Contact : " << myEntry[id].contact << endl;
	cout << "+ Address : " << myEntry[id].address << endl << endl;

	return true;
}

int searchEntry(MyEntry myEntry[GLOBAL_SIZE], string nameTarget, int count)
{
	int i;
	int N = 0;
	for(i = 0; i < count; i++)
	{
		if(std::string(myEntry[i].lastName) == nameTarget)
		{
			displayEntry(myEntry, i + 1, count); N++;
		}
	}

	return N;
}

bool deleteEntry(MyEntry myEntry[GLOBAL_SIZE], int id, int &count)
{
	int i;
	id--;
	if(id < 0 || id >= count) return false;
	for(i = id; i < count - 1; i++)
	{
		myEntry[i] = myEntry[i + 1];
	}
	count--;
	return true;
}

int main()
{
	int count = 0;
	MyEntry myEntry[GLOBAL_SIZE];

	int choice;
	int contact_id;
	bool bQuit = false;
	string lastName;
	char lastNameHolder[GLOBAL_SIZE];
	while(bQuit == false)
	{
		system("cls");
		cout << "+-------------------------------------+" << endl;
		cout << "Address Book Menu " << endl << endl;
		cout << "  1. Add contact " << endl;
		cout << "  2. Edit contact " << endl;
		cout << "  3. Delete contact " << endl;
		cout << "  4. View contacts " << endl;
		cout << "  5. Search addressbook by last name " << endl;
		cout << "  6. Exit " << endl;
		cout << "+-------------------------------------+" << endl;
		cout << "Number of contact records : " << count << endl; 
		cout << "Enter your choice : "; 
		
		if(cin >> choice && choice >= 1 && choice <= 6)
		{
			cin.ignore();
			switch(choice)
			{
				case 1 : 
				{
					if(!addEntry(myEntry, count))
					{
						cout << "+ The address book menu is full. Delete some contact record and try again." << endl;
					}
					else
					{
						cout << endl;
						cout << "The contact record has been successfully added to the list." << endl;
					}
				}
				break;
				case 2 :
				{
					cout << "Enter the contact id : "; 
					if(cin >> contact_id && (cin.ignore(), editEntry(myEntry, contact_id, count)))
					{
						cout << "The entry [" << contact_id << "] has been successfully updated." << endl;
					}
					else
					{
						if(!cin)
						{
							cin.clear();
							cin.ignore(1000, '\n');
						}		
						cout << "+ Invalid contact id or the contact record does not exist. Please try again." << endl;
					}
				}
				break;
				case 3 : 
				{
					cout << "Enter the contact id : "; 
					if(cin >> contact_id && (cin.ignore(), deleteEntry(myEntry, contact_id, count)))
					{
						cout << "The entry [" << contact_id << "] has been successfully removed." << endl;
					}
					else
					{
						if(!cin)
						{
							cin.clear();
							cin.ignore(1000, '\n');
						}	
						
						cout << "+ Cannot remove the entry num " << contact_id << ". Please try again." << endl;
					}
				}
				break;
				case 4 : 
				{	
					cout << "Enter the contact id : "; 
					if(cin >> contact_id && (cin.ignore(), displayEntry(myEntry, contact_id, count)))
					{
					
					}
					else
					{
						if(!cin)
						{
							cin.clear();
							cin.ignore(1000, '\n');
						}		
						cout << "+ Invalid contact id or the contact record does not exist. Please try again." << endl;
					}
				}
				break;
				case 5 : 
				{
					int searchCount;
					cout << "Enter the contact last name : "; 
					if(cin.getline(lastNameHolder, sizeof(lastNameHolder)) && (lastName = lastNameHolder, searchCount = searchEntry(myEntry, lastName, count)))
					{
						cout << "Found " << searchCount << " entries that match the last name" << endl;
					}	
					else
					{
						if(!cin)
						{
							cin.clear();
							cin.ignore(1000, '\n');
						}		
						cout << "+ The contact record you request does not exist. Please try again." << endl;
					}
				}
				break;
				case 6 : bQuit = true; break;
			}
		}
		else
		{
			if(!cin)
			{
				cin.clear();
				cin.ignore(1000, '\n');
			}
			cout << "+ Invalid choice. Please try again." << endl;
		}
	
		if(bQuit == false)
		{
			cout << "+ Please press any key to continue. . ."; cin.get();	
		}
	}

	cout << endl;
	cout << "Thank you for using the program. . ." << endl;
	cout << "Please press any key to continue. . ."; cin.get();	

	return 0;
}

[tupas1998]

Thanks you very much :)
so i need to pay more attention on assignments more
thank you for the tip :)