//*************************************************************** // HEADER FILE USED IN PROJECT //**************************************************************** #include #include #include #include //*************************************************************** // CLASS USED IN PROJECT //**************************************************************** class product { int pno; char name[50]; float price,qty,tax,dis; public: void create_product() { cout<<"\nPlease Enter The Product No. of The Product "; cin>>pno; cout<<"\n\nPlease Enter The Name of The Product "; gets(name); cout<<"\nPlease Enter The Price of The Product "; cin>>price; cout<<"\nPlease Enter The Discount (%) "; cin>>dis; } void show_product() { cout<<"\nThe Product No. of The Product : "<>no; fp.open("Shop.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 New Details of Product"<>no; fp.open("Shop.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)); } } fp2.close(); fp.close(); remove("Shop.dat"); rename("Temp.dat","Shop.dat"); cout<<"\n\n\tRecord Deleted .."; getch(); } //*************************************************************** // function to display all products price list //**************************************************************** void menu() { clrscr(); fp.open("Shop.dat",ios::in); if(!fp) { cout<<"ERROR!!! FILE COULD NOT BE OPEN\n\n\n Go To Admin Menu to createFile"; cout<<"\n\n\n Program is closing ...."; getch(); exit(0); } cout<<"\n\n\t\tProduct MENU\n\n"; cout<<"====================================================\n"; cout<<"P.NO.\t\tNAME\t\tPRICE\n"; cout<<"====================================================\n"; while(fp.read((char*)&pr,sizeof(product))) { cout<>order_arr[c]; cout<<"\nQuantity in number : "; cin>>quan[c]; c++; cout<<"\nDo You Want To Order Another Product ? (y/n)"; cin>>ch; }while(ch=='y' ||ch=='Y'); cout<<"\n\nThank You For Placing The Order";getch();clrscr(); cout<<"\n"; cout<<"\n********************************INVOICE************************\n"; cout<<"\nPr No.\tPr Name\tQuantity \tPrice \tAmount \tAmount afterdiscount\n"; for(int x=0;x<=c;x++) { fp.open("Shop.dat",ios::in); fp.read((char*)&pr,sizeof(product)); while(!fp.eof()) { if(pr.retpno()==order_arr[x]) { amt=pr.retprice()*quan[x]; damt=amt-(amt*pr.retdis()/100); cout<<"\n"<>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 OF PROGRAM //**************************************************************** void main() { char ch; intro(); do { clrscr(); cout<<"\n\n\n\tMAIN MENU"; cout<<"\n\n\t01. CUSTOMER"; cout<<"\n\n\t02. ADMINISTRATOR"; cout<<"\n\n\t03. EXIT"; cout<<"\n\n\tPlease Select Your Option (1-3) "; ch=getche(); switch(ch) { case '1': clrscr(); place_order(); getch(); break; case '2': admin_menu(); break; case '3':exit(0); default :cout<<"\a"; } }while(ch!='3'); }

market billing system