main.cpp

// CRUISE TRAVEL MANAGENMENT
 /*A Project based on Cruise Travel Management */

 #include<iostream.h>
 #include<conio.h>
 #include<stdio.h>
 #include<process.h>
 #include<fstream.h>
 #include<ctype.h>
 #include<stdlib.h>
 #include<iomanip.h>
 long int code;
 class persdetails  //class for collecting the personal details
 {
 int trvlcode;
 int  age[20];
 char name[20][20];
 char add[50];
 char phnum[15];
 char sex[20];
 char passnum[10][10];
 char familyname[30];
 int num;
 int numppl;
 public:
 void p_input(int);
 void p_output();
 void givefam();
 int givecode();
 int give();
 }pob;
 int persdetails::give()
 {
 return num;
 }
 void persdetails::givefam()
 {
 cout<<familyname;
 }
 int persdetails::givecode()
 {
 return trvlcode;
 }
 void persdetails::p_input(int cd)  //input func() of class1
 {
 trvlcode=cd;
 num=0;
 clrscr();
 cout<<"\n\n\t:::::::::::::::::::::: PERSONAL DETAILS ::::::::::::::::::::::\n";
cout<<"\t\t\t\t\n";
cout<<"\n\t\t Please fill in the details:\n\n\n\t\t\t1.Family Name: ";
gets(familyname);
 cout<<"\n\t\t\t2.Address: ";
gets(add);
 cout<<"\n\t\t\t3.Contact Number(10 Digit Mobile Number) : ";
gets(phnum);
 cout<<"\n\n\n\t\tEnter The No of People Travelling: ";
cin>>numppl;
 clrscr();
 if(numppl>0)
 {
 cout<<"\n\t\tPlease Enter The Details of each Member/Members: "<<endl;
 cout<<"\t\t\n";
for(int i=0;i<numppl;i++)
 {
 cout<<endl<<"\n\t\tMember "<<i+1;
 cout<<"\n\t\t";
cout<<"\n\n\t\tFirst Name: ";
gets(name[i]);
 cout<<"\n\t\tAge: ";
cin>>age[i];
 cout<<"\n\t\tSex (M/F):";
cin>>sex[i];
 cout<<"\n\t\tPassport Number: ";
gets(passnum[i]);
 if(age[i]>5)
 {
 num++;    //to calculate no of travellers below 5 yrs
 }
 }
 }
 }
 void persdetails::p_output() //output func() of class1
 {
 clrscr();
 cout<<"\n\n\t PERSONAL DETAILS "<<endl;
 cout<<"\n\n\t\t\tFamily Name:\t "<<familyname<<endl;
 cout<<"\t\t\tAddress:\t "<<add<<endl;
 cout<<"\t\t\tPhone Number:\t "<<phnum<<endl;
 cout<<"\n\n\tName\t\tAge\t\tSex\t\tPassport Number\n"<<endl;
 for(int i=0;i<numppl;i++)
 {
 cout<<"\t"<<name[i]<<"\t\t"<<age[i]<<"\t\t"<<sex[i]<<"\t\t"<<passnum[i]<<endl;
 }
 getch();
 }
 class travdetails   //class which holds the travel details
 {
 int trvtcode;
 int day;
 int month;
 int year;
 int num1;
 int bdg_pt;
 int go_pt;
 int deck;
 int cabin;
 int pool;
 int gym;
 int sports;
 int salon;
 int spa;
 int theatre;
 public:
 void initial();
 void t_input(int);
 void t_output();
 void compute();
 int gtcode();
 void accept(int);
 }tob;
 void travdetails::initial()
 {
 pool=gym=theatre=sports=salon=0;
 }
 void travdetails::accept(int c)
 {
 num1=c;
 }
 int travdetails::gtcode()
 {
 return trvtcode;
 }
 void travdetails::t_input(int cd) //input func()-class2
 {
 tob.initial();
 trvtcode=cd;
 int i=1,opt;
 clrscr();
 do
 {
 clrscr();
 cout<<endl;
 cout<<"\n\n\t\t\t\t__TRAVEL DETAILS__";
cout<<"\n\t\t\t\t";
cout<<"\n\n\t\tPlease enter the following details for your journey:";
cout<<"\n\n\t\t*Note:Options marked with are compulsory.\n\t\t\tPlease do select them.";
cout<<"“\n\n\n\t\t\t\t*1.Boarding Point\n\t\t\t\t*2.Destination\n\t\t\t\t*3.Date of Departure\n\t\t\t\t*4.Deck\n\t\t\t\t 5.Cabin\n\t\t\t\t 6.Swimming Pool\n\t\t\t\t 7.Gymnasuim\n\t\t\t\t 8.Sports\n\t\t\t\t 9.Salon\n\t\t\t\t 10.Spa\n\t\t\t\t 11.Theatre\n\t\t\t\t 12.Back\n\n\t\t\t\t ";
cin>>opt;
 switch(opt)
 {
 case 1:clrscr();
 cout<<"\n\n\n\t\t\tSelect Boarding point:\n\n\t\t\t1.Mumbai\n\n\t\t\t2.Cochin\n\n\t\t\t3.Chennai\n\n\t\t\t ";
cin>>bdg_pt;
 break;
 case 2:clrscr();
 cout<<"\n\n\t\t\t****** Select Destination ******\n\n\n";
cout<<"\t 1.New York\t\t6.Dubai\t\t\t11.Antananariv";
cout<<"\n\n\t 2.Miami\t\t7.Lisbon\t\t12.Cairo\n\n";
cout<<"\t 3.Rio De Janeiro\t8.London\t\t13.Perth";
cout<<"\n\n\t 4.Colombo\t\t9.Copenhagen\t\t14.Sydney";
cout<<"\n\n\t 5.Hong Kong\t\t10.Cape Town\t\t15.Wellington\n\n\n\n\n\t\t\t\t  ";
cin>>go_pt;
 break;
 case 3:clrscr();
 cout<<"\n\n\t::::::::::::::::::: Date of Departure  ::::::::::::::::::::";
cout<<"\n\n   * Note:Format for entering:Day(press enter)Month(press enter)Year ";
cout<<"\n\n\t\tEnter your preferred date of departure: ";
cin>>day;
 gotoxy(59,7);   //to create a paricular format for entry
 cout<<"/";
cin>>month;
 gotoxy(62,7);
 cout<<"/";
cin>>year;
 break;
 case 4:clrscr();
 cout<<"\n\n\t\t\tEnter The Choice OF Deck\n\n\t\t\t1.Top Deck\n\n\t\t\t2.Middle Decks\n\n\t\t\t3.Bottom Deck\n\n\t\t\t ";
cin>>deck;
 break;
 case 5:clrscr();
 cout<<"\n\n\t\t\tEnter The Choice Of Cabin\n\n\t\t\t1.AC\n\n\t\t\t2.Non AC\n\n\t\t\t";
cin>>cabin;
 break;
 case 6:clrscr();
 cout<<"\n\n\t\tDo You Like To Avail The Facility Of A Swimming Pool\n\n\t\t\t1.No\n\n\t\t\t2.Yes\n\n\t\t\t ";
cin>>pool;
 pool=2;
break;
 case 7:clrscr();
 cout<<"\n\n\t\tDo You Like To Avail The Facility Of A Gymnasium\n\n\t\t\t1.No\n\n\t\t\t2.Yes\n\n\t\t\t ";
cin>>gym;
 gym=2;
break;
 case 8:clrscr();
 cout<<"\n\n\t\tDo You Like To Avail The Sports Facilities Offered\n\n\t\t\t1.No\n\n\t\t\t2.Yes\n\n\t\t\t ";
cin>>sports;
 sports=2;
break;
 case 9:clrscr();
 cout<<"\n\n\t\tDo You Like To Avail The Facility Of Beauty Salon\n\n\t\t\t1.No\n\n\t\t\t2.Yes\n\n\t\t\t ";
cin>>salon;
 salon=2;
break;
 case 10:clrscr();
 cout<<"\n\n\tDo You Like To Avail The Facility Of Spa and Ayurvedic Treatment\n\n\t\t\t1.No\n\n\t\t\t2.Yes\n\n\t\t\t ";
cin>>spa;
 spa=2;
break;
 case 11:clrscr();
 cout<<"\n\n\t\tDo You Like To Avail The Facility Of Amphitheatre\n\n\t\t\t1.No\n\n\t\t\t2.Yes\n\n\t\t\t ";
cin>>theatre;
 theatre=2;
break;
 case 12:i=0;
 break;
 }
 }while(i==1);
 }
 void boardpt(int c)  //for easy o/p
 {
 if(c==1)
 cout<<"Mumbai\t";
if(c==2)
 cout<<"Cochin\t";
if(c==3)
 cout<<"Chennai\t";
 }
void dest(int d)  //for easy o/p
 {
 switch(d)
 {
 case 1:cout<<"New York";
break;
 case 2:cout<<"Miami";
break;
 case 3:cout<<"Rio De Janero";
break;
 case 4:cout<<"Colombo";
break;
 case 5:cout<<"Hong Kong";
break;
 case 6:cout<<"Dubai";
break;
 case 7:cout<<"Lisbon";
break;
 case 8:cout<<"London";
break;
 case 9:cout<<"Copenhagen";
break;
 case 10:cout<<"Cape Town";
break;
 case 11:cout<<"Antananriv";
break;
 case 12:cout<<"Cairo";
break;
 case 13:cout<<"Perth";
break;
 case 14:cout<<"Sydney";
break;
 case 15:cout<<"Willington";
break;
 }
 }
 void travdetails::t_output()  //output func()-class2
 {
 clrscr();
 cout<<"\n\n\t******************** TRAVEL DETAILS *********************";
cout<<"\n\n\t\tBoarding Point: ";
boardpt(bdg_pt);
 cout<<"\n\n\t\tDestination: ";
dest(go_pt);
 cout<<"\n\n\t\tDate of departure: ";
cout<<day<<"/"<<month<<"/"<<year;
 cout<<"\n\n\t\tDeck: ";
switch(deck)
 {
 case 1:cout<<"Top Deck";
break;
 case 2:cout<<"Middle Deck";
break;
 case 3:cout<<"Bottom Deck";
break;
 }
 cout<<"n\n\t\tCabin: ";
switch(cabin)
 {
 case 1:cout<<"AC cabin";
break;
 case 2:cout<<"Non-AC cabin";
break;
 }
 cout<<"\n\n\n\tFacilities availed for are:";
if(pool==2)
 cout<<"\n\t\t\t\t    Swimming Pool";
if(gym==2)
 cout<<"\n\t\t\t\t    Gymnasuim";
if(sports==2)
 cout<<"\n\t\t\t\t    Sports Facilities";
if(spa==2)
 cout<<"\n\t\t\t\t    Spa and Ayurvedic Treatment";
if(salon==2)
 cout<<"\n\t\t\t\t    Beauty Salon";
if(theatre==2)
 cout<<"\n\t\t\t\t    Theatre";
getch();
 }
 void family(int c,int&flag)  //to display familyname+to check for record
 {
 flag=0;
 clrscr();
 ifstream ifl("PD.dat",ios::binary);
 if(!ifl)
 cout<<"\nError";
ifl.read((char*)&pob,sizeof(pob));
 while(!ifl.eof())
 {
 if(pob.givecode()==c)
 {
 flag=1;
 break;
 }
 ifl.read((char*)&pob,sizeof(pob));
 }
 if(flag==1)
 {
 cout<<"\n\n\t\t ****** ";
pob.givefam();
 cout<<"    FAMILY DATABASE ******";
 }
else
 {
 cout<<"\nError in locating record!!";
 }
ifl.close();
 }
 void editp(int c)  //to edit persdetails
 {
 ofstream ofl2("temp1.txt",ios::binary);
 if(!ofl2)
 cout<<"Error While Opening File";
ifstream ifl4("PD.dat",ios::binary);
 if(!ifl4)
 cout<<"Error While Opening File";
ifl4.read((char*)&pob,sizeof(pob));
 while(!ifl4.eof())
 {
 if(pob.givecode()==c)
 {
 clrscr();
 cout<<"Please Enter the New details of the record"<<endl;
 pob.p_input(c);
 ofl2.write((char*)&pob,sizeof(pob));
 cout<<"\n\t\t\tModification Succesful!!!";
ifl4.read((char*)&pob,sizeof(pob));
 }
 else
 {
 ofl2.write((char*)&pob,sizeof(pob));
 ifl4.read((char*)&pob,sizeof(pob));
 }
 }
 remove("PD.dat");
rename("temp1.dat","PD.dat");
ifl4.close();
 ofl2.close();
 getch();
 }
 void editt(int c)  //to edit travdetails
 {
 ofstream ofl2("temp1.dat",ios::binary);
 if(!ofl2)
 cout<<"Error While Opening File";
ifstream ifl4("TD.dat",ios::binary);
 if(!ifl4)
 cout<<"Error While Opening File";
ifl4.read((char*)&tob,sizeof(tob));
 while(!ifl4.eof())
 {
 if(tob.gtcode()==c)
 {
 clrscr();
 cout<<"Please Enter the New details of the record"<<endl;
 tob.t_input(c);
 ofl2.write((char*)&tob,sizeof(tob));
 cout<<"\n\t\t\tModification Succesful!!!";
ifl4.read((char*)&tob,sizeof(tob));
 }
 else
 {
 ofl2.write((char*)&tob,sizeof(tob));
 ifl4.read((char*)&tob,sizeof(tob));
 }
 }
 remove("TD.dat");
rename("temp1.dat","TD.dat");
ifl4.close();
 ofl2.close();
 getch();
 }
 void deletion(int c)  //common delete func()
 {
 ofstream ofl2("temp1.dat",ios::binary);
 if(!ofl2)
 cout<<"Error While Opening File";
ifstream ifl4("PD.dat",ios::binary);
 if(!ifl4)
 cout<<"Error While Opening File";
ifl4.read((char*)&pob,sizeof(pob));
 while(!ifl4.eof())
 {
 if(pob.givecode()!=c)
 {
 ofl2.write((char*)&pob,sizeof(pob));
 }
 ifl4.read((char*)&pob,sizeof(pob));
 }
 remove("PD.dat");
rename("temp1.dat","PD.dat");
ofl2.close();
 ifl4.close();
 ofstream ofl3("temp2.dat",ios::binary);
 if(!ofl3)
 cout<<"\nError While Opening File";
ifstream ifl5("TD.dat",ios::binary);
 if(!ifl5)
 cout<<"\nError While Opening File";
ifl5.read((char*)&tob,sizeof(tob));
 while(!ifl5.eof())
 {
 if(tob.gtcode()!=c)
 {
 ofl3.write((char*)&tob,sizeof(tob));
 }
 ifl5.read((char*)&tob,sizeof(tob));
 }
 ofl3.close();
 ifl5.close();
 remove("TD.dat");
rename("temp1.dat","TD.dat");
cout<<"\n\n\t\tDeletion Completed!";
getch();
 }
 void travdetails::compute()   //compution+bill generation
 {
 long int gttl=0,hr,dcst,dck,cabn,swpool=5000,gm=2000,spfts=7500,slon=6000,sp=20000,ttr=500;
 switch(go_pt)
 {
 case 1:;
 case 2:;
 case 3:hr=30*24;
 dcst=250000;
 break;
 case 4:;
 case 5:;
 case 6:hr=7*24;
 dcst=75000;
 break;
 case 7:;
 case 8:;
 case 9:hr=24*24;
 dcst=130000;
 break;
 case 10:;
 case 11:;
 case 12:hr=15*24;
 dcst=100000;
 break;
 case 13:;
 case 14:;
 case 15:hr=12*24;
 dcst=120000;
 break;
 }
 switch(deck)
 {
 case 1:dck=7500;
 break;
 case 2:dck=5000;
 break;
 case 3:dck=1000;
 }
 switch(cabin)
 {
 case 1:cabn=5000;
 break;
 case 2:cabn=2000;
 break;
 }
 clrscr();
 cout<<"\n\n\t\t:::::::::::::::::::::: BILL ::::::::::::::::::::::::::";
cout<<"\n\n\t\tBoarding point:\t\t";
boardpt(bdg_pt);
 cout<<"\n\n\t\tDestination:\t\t ";
dest(go_pt);
 cout<<"\n\n\t\tDate of Departure: ";
cout<<day<<"/"<<month<<"/"<<year;
 hr=hr/24;         //to calculate date of arrival
 day=day+hr;
 if(month==1||month==3||month==5||month==7||month==8||month==10||month==12)
 {
 if(day>31)
 {
 month=month+1;
 day=day%31;
 }
 }
 if(month==4||month==6||month==9||month==11)
 {
 if(day>30)
 {
 month=month+1;
 day=day%30;
 }
 }
 if(month==2)
 {
 if(day>28)
 {
 month=month+1;
 day=day%28;
 }
 }
 if(month==13)
 {
 month=1;
 year++;
 }
 cout<<"\n\n\t\tDate of Arrival: ";
cout<<day<<"/"<<month<<"/"<<year;
 cout<<"\n\n\t\tSubject\t\tCost(for 1)\tNo of ppl\tTotal";
cout<<"\n\n\t\tTravel\t\t"<<dcst<<"\t\t   "<<num1<<"\t\t"<<num1*dcst;
 gttl+=num1*dcst;
 cout<<"\n\t\tDeck\t\t"<<dck<<"\t\t   "<<num1<<"\t\t"<<dck*num1;
 gttl+=dck*num1;
 cout<<"\n\t\tCabin\t\t"<<cabn<<"\t\t   "<<num1<<"\t\t"<<cabn*num1;
 gttl+=cabn*num1;
 if(pool==2)
 {
 cout<<"\n\t\tSwimming Pool\t"<<swpool<<"\t\t   "<<num1<<"\t\t"<<swpool*num1;
 gttl+=swpool*num1;
 }
 if(gym==2)
 {
 cout<<"\n\t\tGym\t\t"<<gm<<"\t\t   "<<num1<<"\t\t"<<gm*num1;
 gttl+=gm*num1;
 }
 if(sports==2)
 {
 cout<<"\n\t\tSports\t\t"<<spfts<<"\t\t   "<<num1<<"\t\t"<<spfts*num1;
 gttl+=spfts*num1;
 }
 if(salon==2)
 {
 cout<<"\n\t\tSalon\t\t"<<slon<<"\t\t   "<<num1<<"\t\t"<<slon*num1;
 gttl+=slon*num1;
 }
 if(spa==2)
 {
 cout<<"\n\t\tSpa\t\t"<<sp<<"\t\t   "<<num1<<"\t\t"<<sp*num1;
 gttl+=dcst*num1;
 }
 if(theatre==2)
 {
 cout<<"n\t\tTheatre\t\t"<<ttr<<"\t\t   "<<"num"<<"\t\t"<<ttr*num1;
 gttl+=ttr*num1;
 }
 cout<<"\n\n\n\t\t\t Grand Total:Rs ";
if(gttl>100000)     //to provide comma’s for grandtotal
 {
 cout<<gttl/100000<<",";
gttl=gttl%100000;
 }
 if(gttl>1000)
 {
 cout<<gttl/1000<<",";
gttl=gttl%1000;
 }
 cout<<gttl;
	if(gttl<10)
 cout<<"  ";
 cout<<" ";
cout<<"\n\n\t! All Travellers below the age of 5 have not been charged !";
getch();
 }
 void main()
 {
 clrscr();
 cout<<"\n\n\n\n\n";   //welcome screen
 cout<<" *       *    * * *    *        * * *    * * *      *   *      * * *     \n";
cout<<"  *  *  *     * *      *        *        *   *     *  *  *     * *       \n";
cout<<"   *   *      * * *    * * *    * * *    * * *    *       *    * * *     \n";
cout<<"\n\n\n\n\n";
ifstream fl("INITIALL.dat",ios::binary); //initialisation of code
 if(!fl)
 cout<<"\nError";
fl.read((char*)&code,sizeof(code));
 fl.close();
 int opt,opt1,opt2,opt3,opt4;
 int acceptcode,flag;
 getch();
 clrscr();
 do
 {
 clrscr();
 cout<<"\n\n\t\t\n";
cout<<"\t\t .WELCOME TO THE CRUISE DATABASE SYSTEM.\n";

cout<<"\t\t:::::::::::::::::::  MAIN MENU   :::::::::::::::::::\n";

cout<<"\n\t\t\tPlease select a kind of user:";
cout<<"\n\n\t\t\t\t1.New User\n\n\t\t\t\t2.Existing User\n\n\t\t\t\t3.Exit";
cout<<"\n\n\t\t\t\t ";
cin>>opt;
 switch(opt)
 {
 case 1:do
 {
 clrscr();
 cout<<"\n\n\n\t\t\t\t    NEW USER\n";
cout<<"\t\t\t\t    ********\n\n";
cout<<"\n\n\t\t\tChoose the type of details you want to enter:";
cout<<"\n\n\t\t\t\t1.Personal Details\n\n\t\t\t\t2.Travel Details\n\n\t\t\t\t3.Back\n\n\t\t\t\t ";
cin>>opt1;
 switch(opt1)
 {
 case 1:code++;
 pob.p_input(code);
 ofstream ofl("PD.dat",ios::binary|ios::app);
 if(!ofl)
 cout<<"\n\n\t\tSorry.The File Cannot Be Opened For Writing"<<endl;
 ofl.write((char*)&pob,sizeof(pob));
 ofl.close();
 break;
 case 2:tob.t_input(code);
 ofstream ofl1("TD.dat",ios::binary|ios::app);
 if(!ofl1)
 cout<<"\n\n\t\tSorry.The File Cannot Be Opened For Writing"<<endl;
 ofl1.write((char*)&tob,sizeof(tob));
 ofl1.close();
 clrscr();
 cout<<"\n\n\n\n!!!!!Your Details Have Been Registered.Please Make A Note Of This Code: "<<code;
 cout<<"\n\n* For modifications,Please visit existing user’ section in the main screen";
getch();
 break;
 }
 }while(opt1!=3);
 break;
 case 2:clrscr();
 cout<<"\n\n\t\t\t***** EXISTING USER ***** \n\n\t\tPlease Enter The Travel Code That Was Given To You\n\n\t\t\t ";
cin>>acceptcode;
 if(acceptcode>code)
 {
 cout<<"\nNo such record has been created!";
break;
 }
 family(acceptcode,flag);
 cout<<endl<<endl<<"\t\t\t\tCode no:"<<acceptcode;
 getch();
 if(flag==1)
 {
 do
 {
 clrscr();
 cout<<"\n\n\t\t\t          Information Centre       ";
cout<<"\n\t\t\t\t  ~~~~~~~~~~~~~~~~~";
cout<<"\n\n\tPlease select the type of operation that you would like to perform:";
cout<<"\n\n\t\t\t1.View Personal Details\n\n\t\t\t2.View Travel Details\n\n\t\t\t3.Edit Details\n\n\t\t\t4.Compute Bill\n\n\t\t\t5.Back\n\n\t\t\t ";
cin>>opt2;
 switch(opt2)
 {
 case 1:ifstream ifl("PD.dat",ios::binary);
 if(!ifl)
 cout<<"\nError";
ifl.read((char*)&pob,sizeof(pob));
 while(!ifl.eof())
 {
 if(pob.givecode()==acceptcode)
 {
 break;
 }
 ifl.read((char*)&pob,sizeof(pob));
 }
 pob.p_output();
 ifl.close();
 break;
 case 2:ifstream ifl1("TD.dat",ios::binary);
 if(!ifl1)
 cout<<"\nError";
ifl1.read((char*)&tob,sizeof(tob));
 while(!ifl1.eof())
 {
 if(tob.gtcode()==acceptcode)
 {
 break;
 }
 ifl1.read((char*)&tob,sizeof(tob));
 }
 tob.t_output();
 ifl1.close();
 break;
 case 3:do
 {
 clrscr();
 cout<<"\n\n\n\t>>>>>>>>>>>>>>>>>> Edit Details <<<<<<<<<<<<<<<<<<<<<<";
cout<<"\n\n\t\tPlease select from among the editing options:\n\n";
cout<<"\t\t\t\t1.Modify\n\n\t\t\t\t2.Delete\n\n\t\t\t\t3.Back\n\n\t\t\t\t ";
cin>>opt3;
 switch(opt3)
 {
 case 1:do
 {
 clrscr();
 cout<<"\n\n\t\t............... Modificaton ...................\n";
cout<<"\t\t                     ";
cout<<"\n\n\tChoose The Type Of Details You Want To Modify:\n\n\t\t\t1.Personal Details\n\n\t\t\t2.Travel Details\n\n\t\t\t3.Back\n\n\t\t\t ";
cin>>opt4;
 switch(opt4)
 {
 case 1:editp(acceptcode);
 break;
 case 2:editt(acceptcode);
 break;
 case 3:break;
 }
 }while(opt4!=3);
 break;
 case 2:deletion(acceptcode);
 opt3=3;
 opt2=5;
 break;
 case 3:break;
 }
 }while(opt3!=3);
 break;
 case 4:ifstream ifl3("PD.dat",ios::binary);
 if(!ifl3)
 cout<<"\nError";
ifl3.read((char*)&pob,sizeof(pob));
 while(!ifl3.eof())
 {
 if(pob.givecode()==acceptcode)
 {
 break;
 }
 ifl3.read((char*)&pob,sizeof(pob));
 }
 ifstream ifl2("TD.dat",ios::binary);
 if(!ifl2)
 cout<<"\nError";
ifl2.read((char*)&tob,sizeof(tob));
 while(!ifl2.eof())
 {
 if(tob.gtcode()==acceptcode)
 {
 break;
 }
 ifl2.read((char*)&tob,sizeof(tob));
 }
 tob.accept(pob.give());
 tob.compute();
 ifl2.close();
 break;
 case 5:break;
 }
 }while(opt2!=5);
 }
 break;
 case 3:ofstream fil("INITIALL.dat",ios::binary); //storing code value
 if(!fil)
 cout<<"\nError";
fil.write((char*)&code,sizeof(code));
 fil.close();
 clrscr();
 cout<<"\n\n";
 getch();
 exit(0);
 }
 getch();
 }while(1); //infinite loop till exit selected
 }