c++ project on canteen management

1. COMPUTER
SCIENCE
PROJECT
CANTEEN
MANAGEMENT

2. ACKNOWLEDGEMENT
I would like to express a deep sence of
thanks and gratitude to my project guide
Mr. VIMAL SHARMA Sir for guiding me
immensely through the course of this
project. He always evinced keen interest
in my work. His constructive advice and
constant motivation have been
responsible for the completion of this
project.
OMKAR MAJUKAR
XII-A

3. CONTENTS
1. FILES GENERATED
2. WORKING DESCRIPTION
3. HEADER FILES USED
4. OUTPUT SCREENSHOTS
5. BIBLIOGRAPHY

4. FILES GENERATED
1. DATA FILES
CANTEEN.DAT
2. PROGRAM FILE
CANTEEN MANAGEMENT.CPP
3. OBJECT FILE
CANTEEN.OBJ
4. EXECUTION FILE
CANTEEN MANAGEMENT.EXE

5. WORKING DESCRIPTION
This program consists of options as follows
MAIN MENU
1. ADD CUSTOMER
2. ADMINISTRATOR MENU
 ADD PRODUCT
 DISPLAY ALL PRODUCTS
 PRODUCT DETAILS
 MODIFY PRODUCT
 DELETE PRODUCT
 VIEW PRODUCT MENU
 RETURN TO MAIN MENU
3. EXIT

6. //***************************************************************
// HEADER FILES USED IN PROJECT
//****************************************************************
#include<conio.h>
#include<stdio.h>
#include<process.h>
#include<fstream.h>
//***************************************************************
// CLASS USED
//****************************************************************
class product
{
int pno;
char name[50];
float price,qty,tax;
public:
void add_product()
{
cout<<"nPlease Enter The Product No.of The Product : ";
cin>>pno;
cout<<"nnPlease Enter The Name ofThe Product : ";
gets(name);

7. cout<<"nPlease Enter The Price ofThe Product : ";
cin>>price;
}
void show_product()
{
cout<<"nThe Product No. of The Product : "<<pno;
cout<<"nThe Name ofThe Product : ";
puts(name);
cout<<"nThe Price of The Product : "<<price;
}
int retpno()
{
return pno;
}
float retprice()
{
return price;
}
char* retname()
{

8. return name;
}
}; // CLASS ENDS HERE
//***************************************************************
// GLOBAL DECLARATION FOR STREAM OBJECT
//****************************************************************
fstream fp;
product pr;
//***************************************************************
// FUNCTION TO WRITE IN THE FILE
//****************************************************************
void write_product()
{
fp.open("Canteen.dat",ios::out|ios::app);
pr.add_product();
fp.write((char*)&pr,sizeof(product));
fp.close();
cout<<"nnThe Product Has Been Added ";
getch();
}

9. //***************************************************************
// FUNCTION TO READ ALL RECORDS FROM FILE
//****************************************************************
void display_all()
{
clrscr();
cout<<"nnnttDISPLAYALL RECORDnn";
fp.open("Canteen.dat",ios::in);
while(fp.read((char*)&pr,sizeof(product)))
{
pr.show_product();
cout<<"nn====================================n";
getch();
}
fp.close();
getch();
}
//***************************************************************
// FUNCTION TO READ SPECIFIC RECORD FROM FILE
//****************************************************************
void display_sp(int n)
{

10. int flag=0;
fp.open("Canteen.dat",ios::in);
while(fp.read((char*)&pr,sizeof(product)))
{
if(pr.retpno()==n)
{
clrscr();
pr.show_product();
flag=1;
}
}
fp.close();
if(flag==0)
cout<<"nnSorry !!! Recordnot exist";
getch();
}
//***************************************************************
// FUNCTION TO MODIFY RECORD OF FILE
//****************************************************************
void modify_product()
{
int no,found=0;

11. clrscr();
cout<<"nntMODIFYPRODUCT";
cout<<"nntPlease Enter The Product Number : ";
cin>>no;
fp.open("Canteen.dat",ios::in|ios::out);
while(fp.read((char*)&pr,sizeof(product)) && found==0)
{
if(pr.retpno()==no)
{
pr.show_product();
cout<<"nPlease Enter The NewDetails of Product"<<endl;
pr.add_product();
int pos=-1*sizeof(pr);
fp.seekp(pos,ios::cur);
fp.write((char*)&pr,sizeof(product));
cout<<"nnt RecordUpdatedSuccessfuly";
found=1;
getch();
}
}
fp.close();
if(found==0)

12. cout<<"nnSorry !!! RecordNot Found ";
getch();
}
//***************************************************************
// FUNCTION TO DELETE A PRODUCT
//****************************************************************
void delete_product()
{
int no;
clrscr();
cout<<"nnnnDELETE PRODUCT";
cout<<"nnPlease Enter The product no. of The Product You Want To
Delete : ";
cin>>no;
fp.open("Canteen.dat",ios::in|ios::out);
fstream fp2;
fp2.open("Temp.dat",ios::out);
fp.seekg(0,ios::beg);
while(fp.read((char*)&pr,sizeof(product)))
{
if(pr.retpno()!=no)
{
fp2.write((char*)&pr,sizeof(product));

13. }
}
fp2.close();
fp.close();
remove("Canteen.dat");
rename("Temp.dat","Canteen.dat");
cout<<"nntRecordDeletedSuccessfully ...";
getch();
}
//***************************************************************
// FUNCTION TO DISPLAY THE PRICE LIST
//****************************************************************
void menu()
{
clrscr();
fp.open("Canteen.dat",ios::in);
if(!fp)
{
cout<<"ERROR!!!FILE COULD NOTBE OPENnnnFirst Add A
Product";
cout<<"nnnProgram is closing ....";
getch();
exit(0);

14. }
cout<<"nnttProduct MENUnn";
cout<<"==================================================
==n";
cout<<"P.NO.ttNAMEttPRICEn";
cout<<"==================================================
==n";
while(fp.read((char*)&pr,sizeof(product)))
{
cout<<pr.retpno()<<"tt"<<pr.retname()<<"tt"<<pr.retprice()<<endl
;
}
fp.close();
}
//***************************************************************
// FUNCTION TO PLACE ORDER AND MAKE BILL
//****************************************************************
void place_order()
{
int order_arr[50],quan[50],c=0;

15. float amt,total=0;
char ch='Y';
menu();
cout<<"n============================";
cout<<"n PLACE YOUR ORDER";
cout<<"n============================n";
do
{
cout<<"nnEnter The Product No.Of The Product : ";
cin>>order_arr[c];
cout<<"nEnter The Quantity : ";
cin>>quan[c];
c++;
cout<<"nDo You Want To Order More Products ? (y/n) : ";
cin>>ch;
}
while(ch=='y' ||ch=='Y');
cout<<"nn******************************** BILL
************************n";
for(int x=0;x<=c;x++)
{
fp.open("Canteen.dat",ios::in);
fp.read((char*)&pr,sizeof(product));

16. while(!fp.eof())
{
if(pr.retpno()==order_arr[x])
{
amt=pr.retprice()*quan[x];
cout<<"nProduct Number : "<<order_arr[x]
<<"nProduct Name : " <<pr.retname() <<"nQuantity : "<<quan[x]
<<"nPrice : " <<pr.retprice();
total=amt;
}
fp.read((char*)&pr,sizeof(product));
}
fp.close();
}
cout<<"nntttttTOTAL="<<total;
cout<<"nnnnTHANK YOU FOR PLACINGORDER";
getch();
}
//***************************************************************
// ADMINISTRATOR MENU FUNCTION
//****************************************************************
void admin_menu()

17. {
clrscr();
char ch2;
cout<<"nnntADMINISTRATORMENU";
cout<<"nnt1.ADDPRODUCT";
cout<<"nnt2.DISPLAYALL PRODUCTS";
cout<<"nnt3.PRODUCTDETAILS ";
cout<<"nnt4.MODIFYPRODUCT";
cout<<"nnt5.DELETE PRODUCT";
cout<<"nnt6.VIEWPRODUCTMENU";
cout<<"nnt7.BACK TO MAIN MENU";
cout<<"nntPlease Enter Your Choice (1-7) ";
ch2=getche();
switch(ch2)
{
case '1': clrscr();
write_product();
break;
case '2': display_all();
break;
case '3': int num;
clrscr();

18. cout<<"nntEnter The Product No : ";
cin>>num;
display_sp(num);
break;
case '4': modify_product();
break;
case '5': delete_product();
break;
case '6': menu();
getch();
case '7':
break;
default:
cout<<"a";
admin_menu();
}
}
//***************************************************************
// THE MAIN FUNCTION
//****************************************************************
void main()
{

19. char ch;
do
{
clrscr();
cout<<"nnn*******************************CANTEEN
MANAGEMENT*******************************";
cout<<"nnntMAIN MENU";
cout<<"nnt01.CUSTOMER";
cout<<"nnt02.ADMINISTRATOR MENU";
cout<<"nnt03.EXIT";
cout<<"nntPlease Select Your Option(1-3) : ";
ch=getche();
switch(ch)
{
case '1': clrscr();
place_order();
getch();
break;
case '2':admin_menu();
break;
case '3':cout<<"nnThank You Visit Again...";
cout<<"nnMADE BY : OMKAR MAJUKAR";

20. cout<<"nnSCHOOL: KENDRIYAVIDYALAYA NO2
BELGAUM CANTT";
getch();
exit(0);
default :cout<<"a";
}
}
while(ch!='3');
}
//***************************************************************
// END OF PROJECT
//***************************************************************

21. OUTPUT SCREENSHOTS
1. WELCOME SCREEN
2. PLACE ORDER

22. 3. ADMINISTRATOR MENU
4. ADD PRODUCT

23. 5. DISPLAYALL PRODUCTS
6. PRODUCT DETAILS

24. 7. MODIFY PRODUCT
8. DELETE PRODUCT

25. 9. VIEW PRODUCT MENU
10. EXIT

26. BIBLIOGRAPHY
BOOK REFERRED
 COMPUTER SCIENCE WITH C++ BY SUMITA ARORA
 OBJECT ORIENTED PROGRAMMING BY ROBERT LAFORE