Question

Phonebook Management System C++ Phonebook management system project in C++ is a simple console application built without graphics. In this project, users can add a new phone record, display existing phone records, search a particular phone record and delete phone records. This simple project will teach you file handling operations such as how to add, search, modify, list and delete records using file. Use header Files for separate compilation. Features: 1. Add phone record: 2. 2. Search phone records: 3. 3. Show phone records: 4.4. Modify phone record: 5. Delete phone record:

project: c++ code with output

Answer 1

Code:-

#include<fstream>
#include<string.h>
#include<iostream>
#include<bits/stdc++.h>
using namespace std;
class contact
{
   long ph;
   char name[20],add[20],email[30];
   public:
   void create_contact()
   {
       cout<<"Phone: ";
       cin>>ph;
       cout<<"Name: ";
       cin.ignore();
       cin>>name;
       cout<<"Address: ";
       cin.ignore();
       cin>>add;
       cout<<"Email address: ";
       cin.ignore();
       cin>>email;
       cout<<"\n";
   }
   void show_contact()
   {
       cout<<endl<<"Phone #: "<<ph;
       cout<<endl<<"Name: "<<name;
       cout<<endl<<"Address: "<<add;
       cout<<endl<<"Email Address : "<<email;
   }
   long getPhone()
   {
       return ph;
   }
   char* getName()
   {
       return name;
   }
   char* getAddress()
   {
       return add;
   }
   char* getEmail()
   {
       return email;
   }
};
fstream fp;
contact cont;
void save_contact()
{
   fp.open("phoneBook.txt",ios::out|ios::app);
   cont.create_contact();
   fp.write((char*)&cont,sizeof(contact));
   fp.close();
   cout<<endl<<endl<<"Phonebook Has Been Sucessfully Created...";
   getchar();
}
void display_contact(int num)
{
   bool found;
   int ch;
   found=false;
   fp.open("phoneBook.txt",ios::in);
   while(fp.read((char*)&cont,sizeof(contact)))
   {
       if(cont.getPhone()==num)
       {
           cont.show_contact();
           found=true;
       }
   }
   fp.close();
   if(found == false){
   cout<<"\n\nNo record found...";}
   getchar();
}
void show_all_contacts()
{
   cout<<"\n\t\t================================\n\t\t\tLIST OF CONTACTS\n\t   \t================================\n";
   fp.open("phoneBook.txt",ios::in);
   while(fp.read((char*)&cont,sizeof(contact)))
   {
       cont.show_contact();
       cout<<endl<<"=================================================\n"<<endl;
   }
   fp.close();
}
void modify_contact()
{
   int num;
   bool found=false;
   cout<<"Modify contact\n===============================\n\n\t..::Enter the number of contact to modify:";
   cin>>num;
   fp.open("phoneBook.txt",ios::in|ios::out);
   while(fp.read((char*)&cont,sizeof(contact)) && found==false)
   {
       if(cont.getPhone()==num)
       {
           cont.show_contact();
           cout<<"\nPlease Enter The New Details of Contact: "<<endl;
           cont.create_contact();
           int pos=-1*sizeof(cont);
           fp.seekp(pos,ios::cur);
           fp.write((char*)&cont,sizeof(cont));
           cout<<endl<<endl<<"\t Phonebook Successfully Updated...";
           found=true;
       }
   }
   fp.close();
   if(found==false)
   cout<<endl<<endl<<"Contact Not Found...";     
}
void delete_contact()
{
   int num;
   cout<<endl<<endl<<"Please Enter The contact #: ";
   cin>>num;  
   fp.open("phoneBook.txt",ios::in|ios::out);
   fstream fp2;
   fp2.open("Temp.txt",ios::out);
   fp.seekg(0,ios::beg);
   while(fp.read((char*)&cont,sizeof(contact)))
   {
       if(cont.getPhone()!=num)
       {
           fp2.write((char*)&cont,sizeof(contact));
       }
   }
   fp2.close();
   fp.close();
   remove("phoneBook.txt");
   rename("Temp.txt","phoneBook.txt");
   cout<<endl<<endl<<"\tContact Deleted...";
}
int main(int argc, char *argv[])
{
   for(;;)
   {  
       int ch;
       cout<<"\n\t **** Welcome to Phonebook Management System ****";
       cout<<"\n\n\n\t\t\tMAIN MENU\n\t\t=====================\n\t\t[1] Add Phone Record\n\t\t[2] Search Phone Records\n\t\t[3] Show Phone Records\n\t\t[4] Modify Phone Record\n\t\t[5] Delete Phone Record\n\t\t[0] Exit\n\t\t=================\n\t\t";
       cout<<"Enter the choice:";
       cin>>ch;
       switch(ch)
       {
           case 0:
               cout<<"\n\n\t\tThank you for using Phonebook Management System...";
               break;
           case 1:
               save_contact();
               break;
           case 2:
               int num;
               cout<<"\n\n\tPhone: ";
               cin>>num;
               display_contact(num);
               break;
           case 3:
               show_all_contacts();
               break;
           case 4:modify_contact();
               break;
           case 5:delete_contact();
               break;
           default:
               break;
       }
       int opt;
       cout<<"\n\n\n..::Enter the Choice:\n\n\t[1] Main Menu\t\t[0] Exit\n";
       cin>>opt;
       switch(opt)
       {
            case 1:
               continue;
       
           case 0:
               exit(10);
        }
   }
   return 0;
}

Output:-

C:\Users\Siva Kumar\Desktop\1.exe **** Welcome to Phonebook Management System **** MAIN MENU [1] Add Phone Record [2] Search Phone Records [3] Show Phone Records [4] Modify Phone Record [5] Delete Phone Record [0] Exit Enter the choice:1 Phone: 123456 Name: John Address: Texas Email address: [email protected] Phonebook Has Been Sucessfully Created... ..:: Enter the Choice: [1] Main Menu [0] Exit

All the options are works fine in the provided code please ckeck and comment if you have any issues regarding this or for any modifications or doubts.

Please UPVOTE thank you...!!!