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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();
}

Edited by peter_budo: Keep It Clear - Do wrap your programming code blocks within [code] ... [/code] tags

Votes + Comments
Disgusting on so many levels
2
Contributors
1
Reply
3
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6 Years
Discussion Span
Last Post by group256
0

if you are using C++, you don't need the .h at the end of some of your libraries. Get rid of ".h" at the end of fstream.h and iostream.h. I'm not sure about dos.h and process.h as I believe they are avaialable only under Windows.

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