hiiiii its 12th science student.IN THE FOLLOWING PROGRAM I REALLY DONT UNDERSTAN THE LINKER ERROR.I HAD ALREADY SPEND 4-5 HOURS IN SOLVING 50IES OF ERROR BUT THIS ERROR I REALLY DON'T ABLE TO UNDERSTAND.
SO PLEASE HELP ME OUTTTTTT.
AS EARLY AS ANYONE CAN......
#include<string.h>
#include<iostream.h>
#include<conio.h>
#include<dos.h>
#include<stdio.h>
#include<fstream.h>
#include<process.h>
#include<stdlib.h>
class train
{
private :
int trainno,nofafseat,nofasseat,noffsseat,nofacseat,nofssseat;
char trainname[60],startingpoint[60],destination[60];
public :
train()
{
trainno=0;
nofafseat=0;
nofasseat=0;
noffsseat=0;
nofacseat=0;
nofssseat=0;
strcpy(trainname,"/0");
strcpy(startingpoint,"/0");
strcpy(destination,"/0");
}
void input(); //To input the details
void display();
int returnaf();
train::redturntr();
int returntr();
int returnas();
int returnfs();
int returnac();
int returnss();
}
tr;
int train::redturntr()
{
return trainno;
}
int train::returnaf()
{
return nofafseat;
}
int train::returnas()
{
return nofasseat;
}
int train::returnfs()
{
return noffsseat;
}
int train::returnac()
{
return nofacseat;
}
int train::returnss()
{
return nofssseat;
}
void train::input()
{
clrscr();
gotoxy(10,10);
cout<<"ENTER THE TRAIN NUMBER ";
gotoxy(57,10);
cin>>trainno;
gotoxy(10,12);
cout<<"ENTER THE NUMBER OF A/C FIRST CLASS SEATS";
gotoxy(57,12);
cin>>nofafseat;
gotoxy(10,14);
cout<<"ENTER THE NUMBER OF A/C SECOND CLASS SEATS";
gotoxy(57,14);
cin>>nofasseat;
gotoxy(10,16);
cout<<"ENTER THE NUMBER OF FIRST CLASS SLEEPER SEATS";
gotoxy(57,16);
cin>>noffsseat;
gotoxy(10,18);
cout<<"ENTER THE NUMBER OF A/C CHAIR CAR SEATS";
gotoxy(57,18);
cin>>nofacseat;
gotoxy(10,20);
cout<<"ENTER THE NUMBER OF SECOND CLASS SLEEPER SEATS";
gotoxy(57,20);
cin>>nofssseat;
gotoxy(10,22);
cout<<"ENTER THE TRAIN NAME";
gotoxy(57,22);
gets(trainname);
gotoxy(10,24);
cout<<"ENTER THE STARTING POINT ";
gotoxy(57,24);
gets(startingpoint);
gotoxy(10,26);
cout<<"ENTER THE DESTINATION ";
gotoxy(57,26);
gets(destination);
}
void train::display ()
{
clrscr();
gotoxy(10,10);
cout<<"TRAIN NUMBER ";
gotoxy(47,10);
cout<<trainno;
gotoxy(10,12);
cout<<"TRAIN NAME ";
gotoxy(47,12);
puts(trainname);
gotoxy(10,14);
cout<<"NO OF A/C FIRST CLASS SEATS ";
gotoxy(47,14);
cout<<nofafseat;
gotoxy(10,16);
cout<<"NO OF A/C SECOND CLASS SEATS ";
gotoxy(47,16);
cout<<nofasseat;
gotoxy(10,18);
cout<<"NO OF FIRST CLASS SLEEPER SEATS ";
gotoxy(47,18);
cout<<noffsseat;
gotoxy(10,20);
cout<<"NO OF A/C CHAIR CLASS SEATS ";
gotoxy(47,20);
cout<<nofacseat;
gotoxy(10,22);
cout<<"NO OF SECOND CLASS SLEEPER SEATS ";
gotoxy(47,22);
cout<<nofssseat;
gotoxy(10,24);
cout<<"STARTING POINT ";
gotoxy(47,24);
puts(startingpoint);
gotoxy(10,26);
cout<<"DESTINATION ";
gotoxy(47,26);
puts(destination);
gotoxy(10,28);
cout<<"PRESS ANY KEY TO CONTINUE ";
getch();
}
class tickets
{
int resno,toaf,nofaf,toas,nofas,tofs,noffs,toac,nofac,toss,nofss,age;
char status[40],name[40];
public:
tickets();
void reservation(); //For ticket reservation
void cancellation(); //For ticket cancellation
int ret();
void display(); //To display reservation details
}
tick;
tickets::tickets()
{
resno=0;
toaf=0;
nofaf=0;
toas=0;
nofas=0;
tofs=0;
noffs=0;
toac=0;
nofac=0;
toss=0;
nofss=0;
age=0;
strcpy(status,"/0");
strcpy(name,"/0");
}
int tickets::ret()
{
return resno;
}
void tickets::display()
{
int f=0;
clrscr();
ifstream fn("Ticket1.dat",ios::out);
fn.seekg(0);
if(!fn)
{
cout<<"ERROR IN THE FILE ";
}
X:
gotoxy(10,10);
cout<<"ENTER THE RESERVATION NO ";
gotoxy(10,12);
int n;
cin>>n;
while(!fn.eof())
{
fn.read((char*)&tick,sizeof(tick));
gotoxy(10,10);
if(n==resno)
{
clrscr();
f=1;
gotoxy(10,10);
cout<<"NAME ";
gotoxy(30,10) ;
cout<<name;
gotoxy(10,12);
cout<<"AGE ";
gotoxy(30,12);
cout<<age;
gotoxy(10,14);
cout<<"PRESENT STATUS ";
gotoxy(30,14);
cout<<status;
gotoxy(10,16);
cout<<"RESERVATION NUMBER ";
gotoxy(30,16);
cout<<resno;
gotoxy(10,18);
cout<<"PRESS ANY KEY TO CONTINUE ";
getch();
}
}
if(f==0)
{
clrscr();
gotoxy(10,10);
cout<<"UNRECOGINIZED RESERVATION NO !!! WANNARETRY ? (Y/N)" ;
char a;
gotoxy(10,12);
cin>>a;
if(a == 'y' || a == 'Y')
{
clrscr();
goto X;
}
else
{
gotoxy(10,12);
cout<<"PRESS ANY KEY TO CONTINUE";
getch();
}
}
fn.close();
}
void tickets::reservation()
{
clrscr();
gotoxy(10,10);
cout<<"RESERVATION ";
gotoxy(10,12);
cout<<"ENTER THE TRAIN NO: ";
int tno,f=0; cin>>tno;
ofstream file;
ifstream fin("Train1.dat",ios::out);
fin.seekg(0);
if(!fin)
{
clrscr();
gotoxy(10,10); cout<<"ERROR IN THE FILE ";
clrscr();
while(!fin.eof())
{
fin.read((char*)&tr,sizeof(tr));
int z;
z=tr.returntr();
if(tno==z)
{
f=1;
nofaf=tr.returnaf();
nofas=tr.returnas();
noffs=tr.returnfs();
nofac=tr.returnac();
nofss=tr.returnss();
}
}
if(f==1)
{
file.open("Ticket1.dat",ios::app);
S:
clrscr();
gotoxy(10,10);
cout<<"NAME:";
gets(name);
gotoxy(10,12);
cout<<"AGE:";
cin>>age;
clrscr();
gotoxy(10,10);
cout<<"SELECT THE CLASS WHICH YOU WISH TO TRAVEL";
gotoxy(10,12);
cout<<"1.A/C FIRST CLASS " ;
gotoxy(10,14);
cout<<"2.A/C SECOND CLASS " ;
gotoxy(10,16);
cout<<"3.FIRST CLASS SLEEPER " ;
gotoxy(10,18);
cout<<"4.A/C CHAIR CAR " ;
gotoxy(10,20);
cout<<"5.SECOND CLASS SLEEPER ";
gotoxy(10,22);
cout<<"ENTER YOUR CHOICE ";
gotoxy(30,22);
int c;
cin>>c;
switch(c)
{
case 1:
toaf++;
resno=rand();
if((nofaf-toaf)>0)
{
strcpy(status,"confirmed");
gotoxy(10,24) ;
cout<<"STATUS.";
gotoxy(30,24);
puts(status);
gotoxy(10,26);
cout<<"RESERVATION NO. :";
gotoxy(30,26);
cout<<resno;
getch();
file.write((char*)&tick,sizeof(tick));
break;
strcpy(status,"PENDING.");
gotoxy(10,24);
cout<<" STATUS.";
gotoxy(30,24);
puts(status);
gotoxy(10,26);
cout<<"RESERVATION NO.:";
gotoxy(30,26);
cout<<resno;
getch();
file.write((char*)&tick,sizeof(tick));
break;
}
case 2:
toas++;
resno=rand();
if((nofas-toas)>0)
{
strcpy(status,"CONFIRMED.");
gotoxy(10,24) ;
cout<<"STATUS.";
gotoxy(30,24);
puts(status);
gotoxy(10,26);
cout<<"RESERVATION NO. :";
gotoxy(30,26);
cout<<resno;
getch();
file.write((char*)&tick,sizeof(tick));
break;
strcpy(status,"PENDING.");
gotoxy(10,24);
cout<<"STATUS.";
gotoxy(30,24);
puts(status);
gotoxy(10,26);
cout<<"RESERVATION NO. :";
gotoxy(30,26);
cout<<resno;
getch();
file.write((char*)&tick,sizeof(tick));
break;
}
case 3:
tofs++;
resno=rand();
if((noffs-tofs)>0)
{
strcpy(status,"CONFIRMED.");
gotoxy(10,24) ;
cout<<"STATUS.";
gotoxy(30,24);
puts(status);
gotoxy(10,26);
cout<<"RESERVATION NO. :";
gotoxy(30,26);
cout<<resno;
getch();
file.write((char*)&tick,sizeof(tick));
break;
}
else
{
strcpy(status,"PENDING.");
gotoxy(10,24);
cout<<"STATUS.";
gotoxy(30,24);
puts(status);
gotoxy(10,26);
cout<<"RESERVATION NO. :";
gotoxy(30,26);
cout<<resno;
getch();
file.write((char*)&tick,sizeof(tick));
break;
}
case 4:
toac++;
resno=rand();
if((nofac-toac)>0)
{
strcpy(status,"CONFIRMED.");
gotoxy(10,24) ;
cout<<"STATUS.";
gotoxy(30,24);
puts(status);
gotoxy(10,26);
cout<<"RESERVATION NO. :";
gotoxy(30,26);
cout<<resno;
getch();
file.write((char*)&tick,sizeof(tick));
break;
}
else
{
strcpy(status,"PENDING.");
gotoxy(10,24);
cout<<"STATUS.";
gotoxy(30,24);
puts(status);
gotoxy(10,26);
cout<<"RESERVATION NO. :";
gotoxy(30,26);
cout<<resno;
getch();
file.write((char*)&tick,sizeof(tick));
break;
}
case 5:
toss++;
resno=rand();
if((nofss-toss)>0)
{
strcpy(status,"CONFIRMED.");
gotoxy(10,24) ;
cout<<"STATUS.";
gotoxy(30,24);
puts(status);
gotoxy(10,26);
cout<<"RESERVATION NO. :";
gotoxy(30,26);
cout<<resno;
getch();
file.write((char*)&tick,sizeof(tick));
break;
}
else
{
strcpy(status,"PENDING.");
gotoxy(10,24);
cout<<"STATUS.";
gotoxy(30,24);
puts(status);
gotoxy(10,26);
cout<<"RESERVATION NO. :";
gotoxy(30,26);
cout<<resno;
getch();
file.write((char*)&tick,sizeof(tick));
break;
}
}
gotoxy(10,28);
cout<<"DO YOU WISH TO CONTINUE BOOKING TICKETS (Y/N) ? ";
gotoxy(57,30);
char n;
cin>>n;
if(n=='y'||n=='Y')
{
goto S;
}
}
}
if(f==0)
{
clrscr();
gotoxy(10,10);
cout<<"ERROR IN THE TRAIN NUMBER ENTERED !!!";
getch();
}
file.close();
}
void tickets::cancellation()
{
clrscr();
ifstream fin;
fin.open("Ticket1.dat",ios::out);
ofstream file;
file.open("Temp1.dat",ios::app);
fin.seekg(0);
gotoxy(10,10);
cout<<"ENTER THE RESERVATION NO. : ";
int r,f=0;
cin>>r;
if(!fin)
cout<<"ERROR IN THE FILE !!!";
while(!fin.eof())
{
fin.read((char*)&tick,sizeof(tick));
int z;
z=ret();
if(z!=r)
{
file.write((char*)&tick,sizeof(tick));
}
if(z==r)
{
f=1;
}
file.close();
fin.close();
remove("Ticket1.dat");
rename("Temp1.dat","Ticket1.dat");
if(f==0)
{
gotoxy(10,12);
cout<<"NO SUCH RESERVATION IS MADE !!! PLEASERETRY ";
getch();
}
else
{
gotoxy(10,12);
cout<<"RESERVATION CANCELLED";
getch();
}
}
}
void main()
{
clrscr();
int ch;
int r=1000;
int j;
gotoxy(33,22);
cout<<"WELCOME";
Z:
clrscr();
gotoxy(25,8) ;
cout<<"RAILWAY TICKET RESERVATION";
gotoxy(25,9);
cout<<"==========================";
gotoxy(20,15) ;
cout<<"1.TRAIN DETAILS";
gotoxy(20,17);
cout<<"2.UPDATE TRAIN DETAILS ";
gotoxy(20,19);
cout<<"3.RESERVING A TICKET ";
gotoxy(20,21);
cout<<"4.CANCELLING A TICKET";
gotoxy(20,23);
cout<<"5.DISPLAY THE PRESENT TICKET STATUS ";
gotoxy(20,25);
cout<<"6.EXIT";
gotoxy(20,27);
cout<<"ENTER YOUR CHOICE: ";
cin>>ch;
char n;
switch(ch)
{
case 1:
fstream fin("Train1.dat",ios::out);
fin.seekg(0);
clrscr();
if(!fin)
{
clrscr();
gotoxy(10,10);
cout<<"ERROR IN THE FILE !!!";
}
else
{
clrscr();
while(!fin.eof())
{
fin.read((char*)&tr,sizeof(tr));
tr.display();
}
}
fin.close();
goto Z;
case 2:
clrscr();
gotoxy(20,10);
cout<<"ENTER THE PASSWORD " ;
cin>>j;
gotoxy(20,30);
cout<<"CHECKING PLEASE WAIT";
getch();
Y:
ofstream fout("Train1.dat",ios::app);
tr.input();
fout.write((char*)&tr,sizeof(tr));
fout.close();
gotoxy(10,30);
cout<<"DO YOU WISH TO CONTINUE UPDATING ?(Y/N)";
cin>>n;
if(n=='y' || n=='Y')
{
goto Y;
goto Z;
}
else
goto Z;
case 3:
tick.reservation();
goto Z;
case 4:
tick.cancellation();
goto Z;
case 5:
tick.display();
goto Z;
case 6:
exit(0);
}
getch();
}