Write a Program to make a Phone Book using C++ Language....

#include<fstream.h>
#include<iostream.h>
#include<conio.h>
#include<ctype.h>
#include<process.h>
#include<iomanip.h>
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
void welcome_screen();
void welcome_screen()
{
    clrscr();
    gotoxy(20,10);
    cputs("**************** W E L C O M E  *********************** ");
    gotoxy(25,12);
    cputs("*** C A M P I O N    S C H O O L *** " );
    gotoxy(20,14);
    textcolor(WHITE);
    cputs(" T E L E P H O N E  M A N A G E M E N T  S O F T W A R E  ");
    gotoxy(38,16);
    textcolor(WHITE);
    cputs(" D O N E  B Y :  ");
    gotoxy(50,18);
    cputs(" Navi Arora ");
    gotoxy(50,20);
    cputs("");
   
    textcolor(WHITE+BLINK);
    gotoxy(40,30);
    cputs(" *** PRESS ANY KEY TO CONTINUE***");
    getch();
    return;
}
class directory
{
    public:
        int record;
        long pn1;
          char pn2[10];
          int age;
          char address1[50];
          char address2[50];
          char occupation[20];
          char name[20];
          char emailadd[25];
          char internetadd[25];
          void modification();
          void addition();
          void deleate();
          void menu();
          void search();
          void view1();
          void init();
          void display();
          void view();
          char check(char *);
          int test();
}obj;
void directory::addition()  //ADDING  INFORMATION
{
    ofstream fout;
      fout.open("heera",ios::out|ios::app);
      init();
      fout.write((char*)&obj,sizeof(obj));
      fout.close();
}
int directory::test()    //FIND NO. OF RECORDS
{
    ifstream fin;
      fin.open("heera");
      fin.seekg(0,ios::end);
      int n;
      n=fin.tellg()/sizeof(obj);
      cout<<" \n NUMBER OF RECORDS = "<<n ;
      return n ;
}
void directory::search()  //SEARCHING FOR A PARTICULAR NUMBER
{
      ifstream fin;
      fin.open("heera");
      if(fin.fail())
    {
        cout<<" \n FILE NOT FOUND ";
        getch();
        return;
    }
      clrscr();
      textcolor(BLACK+BLINK);
      gotoxy(30,1);
      cprintf(" [SEARCHING] ");
      cout<<" \n ENTER PHONE NUMBER TO BE SEARCHED : ";
      long pn;
      cin>>pn;
      int n;
      n=test();
      for(int i=0;i<n;i++)
    {
        fin.read((char*)&obj,sizeof(obj));
        if(pn==pn1)
          {
              view1();
              return;
          }
    }
      if(fin.eof())
    {
        cout<<" \n RECORD NOT FOUND ";
    }
}
void directory::init()  // ENTERING THE DETAILS
{
      clrscr();
      char ch;
      textcolor(BLACK+BLINK);
      gotoxy(30,1);
      cprintf(" [ADDITION] ");
      textcolor(BLACK);
      cout<<" \n ENTER HOUSE PHONE NUMBER : ";
      cin>>pn1;
      cout<<" \n ENTER OFFICE PHONE NUMBER : ";
      cin>>pn2;
      // ch=cin.get();
      cin.get(ch);
      cout<<" \n ENTER NAME : ";
      cin.getline(name,20,'\n');
      cout<<" \n ENTER THE OCCUPATION : ";
      cin.getline(occupation,20,'\n');
      cout<<" \n ENTER HOUSE ADDRESS : ";
      cin.getline(address1,50,'\n');
      cout<<" \n ENTER OFFICE ADDRESS : ";
      cin.getline(address2,50,'\n');
      cout<<" \n ENTER EMAIL ADDRESS : ";
      cin.getline(emailadd,25,'\n');
      cout<<" \n ENTER INTERNET ADDRESS : ";
      cin.getline(internetadd,25,'\n');
}
void directory::view1() //TO DISPLAY ALL THE RECORDS
{
      cout<<"\n";
      cout<<" PHONE NUMBER1 : "<<obj.pn1<<"\n";
      cout<<" PHONE NUMBER2 : "<<obj.pn2<<"\n";
      cout<<" NAME : "<<obj.name<<"\n";
      cout<<" HOUSE ADDRESS : "<<obj.address1<<"\n";
      cout<<" OCCUPATION : "<<obj.occupation<<"\n";
      cout<<" OFFICE ADDRESS : "<<obj.address2<<"\n";
      cout<<" EMAIL ADDRESS : "<<obj.emailadd<<"\n";
      cout<<" INTERNET ADDRESS : "<<obj.internetadd<<"\n";
      getch();
}
void directory::modification() //TO MODIFY ANY DATA IN  THE RECORD IF NECESSARY
{
     clrscr();
     textcolor(BLACK+BLINK);
     gotoxy(30,1);
     cprintf(" [ MODIFICATION ] ");
     textcolor(BLACK);
     long pn;
     int n,i;
     ifstream fin;
     ofstream fout;
     fin.open("heera");
     if(fin.fail())
     {
        cout<<"\n FILE NOT FOUND !";
        fout.close();
        exit(-1);
    }
    fout.open("new");
    n=test();
    if(n==0)
      {
        cout<<"\n FILE IS EMPTY ! ";
        getch();
        return;
      }
    while(fin.good())
      {
        fin.read((char*)&obj,sizeof(obj));
        fout.write((char*)&obj,sizeof(obj));
      }
    fin.close();
    fout.close();
    fout.open("heera",ios::trunc);
    fin.open("new");
    if(fin.fail())
    {
          cout<<"\n FILE NOT FOUND !";
          exit(-1);
    }
    char ch;
    cout<<"\n ENTER PHONE NUMBER :";
    cin>>pn;
    ch=cin.get();
    cin.get(ch);
    for(i=0;i<n;i++)
    {
        fin.read((char*)&obj,sizeof(obj));
        char d;
        if(pn==pn1)
          {
            view1();
            d=check("HOUSE PHONE NUMBER ");
            if((d=='y') || (d=='Y'))
              {
                    cout<<"\n ENTER NEW PHONE NUMBER :";
                    cin>>pn1;
                ch=cin.get();
                  cin.get(ch);
            }
            if(check("OFFICE PHONE NUMBER ")=='Y')
            {
                cout<<"\n ENTER NEW PHONE NUMBER :";
                cin>>pn2;
                ch=cin.get();
                cin.get(ch);
            }
            if(check("NAME")=='y')
            {
                cout<<"\n ENTER NEW NAME : ";
                cin.getline(name,20,'\n');
            }
            if(check("HOME ADDRESS")=='y')
            {
                cout<<"\n ENTER NEW ADDRESS :";
                cin.getline(address1,50,'\n');
            }
            if(check("OFFICE ADDRESS")=='y')
            {
                cout<<"\n ENTER NEW ADDRESS :";
                cin.getline(address2,50,'\n');
            }
            if(check("EMAIL ADDRESS:")=='y')
            {
                cout<<"\n ENTER NEW MAIL ADDRESS :";
                cin.getline(emailadd,25,'\n');
            }
            if(check("INTERNET ADDRESS")=='y')
            {
                cout<<"\n ENTER NEW INTERNET ADDRESS :";
                cin.getline(internetadd,25,'\n');
            }
          }
        fout.write((char*)&obj,sizeof(obj));
    }
    fout.close();
    fin.close();
}
char  directory::check(char *s)
{
    cout<<"\n MODIFY \t "<<s<<"\t"<<"Y/N";
      char ch;
      ch =getch();
      cin.get(ch);
      if((ch=='y')||(ch=='Y'))
        return 'y';
      else
        return 'n';
}
void  directory::deleate()
{
    clrscr();
      window(1,1,80,25);
      textcolor(BLACK+BLINK);
      gotoxy(30,1);
      cprintf("[DELETION]");
      long pn;
      int n,i;
      ifstream fin;
      ofstream fout;
      fin.open("heera");
      if(fin.fail())
    {
        cout<<"\n FILE NOT FOUND ! ";
        getch();
        return;
    }
      fout.open("new");
      n=test();
      if(n==0)
    {
        cout<<"\n FILE IS EMPTY ! ";
        getch();
        return;
    }
      for(i=0;i<n;i++)
    {
        fin.read((char*)&obj,sizeof(obj));
        fout.write((char*)&obj,sizeof(obj));
    }
      fin.close();
      fout.close();
      fout.open("meera",ios::trunc);
      fin.open("new");
      if(fin.fail())
    {
        cout<<"\n FILE NOT FOUND ! ";
        getch();
        return;
    }
    cout<<"\n ENTER PHONE NUMBER :";
    cin>>pn;
    for(i=0;i<n;i++)
      {
        fin.read((char*)&obj,sizeof(obj));
        if(pn!=pn1)
        fout.write((char*)&obj,sizeof(obj));
      }
    fout.close();
    fin.close();
}
void directory::view()
{
    ifstream fin;
    int n,j;
    fin.open("heera");
    if(fin.fail()||fin.bad())
      {
        cout<<"\n FILE NOT FOUND ! ";
        getch();
        return;
      }
    clrscr();
    int i=0;
    n=test();
    for(j=0;j<n;j++)
      {
        cout<<"\n RECORD "<<i+1<<"\n";
        fin.read((char*)&obj,sizeof(obj));
        cout<<"\n PHONE NUMBER1 :"<<obj.pn1<<"\n";
        cout<<"\n PHONE NUMBER2 :"<<obj.pn2<<"\n";
        cout<<"\n NAME :"<<obj.name<<"\n";
        cout<<"\n HOUSE ADDRESS :"<<obj.address1<<"\n";
        cout<<"\n OCCUPATION :"<<obj.occupation<<"\n";
        cout<<"\n OFFICE ADDRESS :"<<obj.address2<<"\n";
        cout<<"\n INTERNET ADDRESS :"<<obj.internetadd<<"\n";
        cout<<"\n EMAIL ADDRESS : "<<obj.emailadd<<"\n";
        i+=1;
    }
      fin.close();
      getch();
}
void  directory::menu()
{
    char ch;
      clrscr();
      textbackground(WHITE);
      textcolor(BLACK);
      gotoxy(30,8);
      cprintf(" A:ADDITION ");
      gotoxy(30,9);
      cprintf(" D: DELETION \n  \r ");
      gotoxy(30,10);
      cprintf(" M:MODIFICATION \n \r ");
      gotoxy(30,11);
      cprintf(" V:VIEW \n \r ");
      gotoxy(30,12);
      cprintf(" S:SEARCH \n \r ");
      gotoxy(30,13);
      cprintf(" E:EXIT \n \r ");
      ch=getch();
      switch(ch)
    {
        case 'a':
        case 'A':
            addition();
            break;
          case 'd' :
          case 'D' :
            deleate();
            break;
          case 'm':
          case 'M':
            modification();
            break;
          case 'v':
          case 'V':
            view();
            break;
          case 's':
          case 'S':
            search();
            break;
          case 'e':
          case 'E':
            system("cls");
            exit(0);
    }
}
int main()
{
    welcome_screen();
      for(;;)
      obj.menu();
      return 0;
}