// HEADER FILE USED IN PROJECT //**************************************************************** #include #include #include #include #include #include //*************************************************************** // CLASS USED IN PROJECT //**************************************************************** class book { char bno[6]; char bname[50]; char aname[20]; public: void create_book() { cout<<"\nNEW BOOK ENTRY...\n"; cout<<"\nEnter The book no."; cin>>bno; cout<<"\n\nEnter The Name of The Book "; gets(bname); cout<<"\n\nEnter The Author's Name "; gets(aname); cout<<"\n\n\nBook Created.."; } void show_book() { cout<<"\nBook no. : "<>admno; cout<<"\n\nEnter The Name of The Student "; gets(name); token=0; stbno[0]='/0'; cout<<"\n\nStudent Record Created.."; } void show_student() { cout<<"\nAdmission no. : "<>ch; }while(ch=='y'||ch=='Y'); fp.close(); } void write_student() { char ch; fp.open("student.dat",ios::out|ios::app); do { st.create_student(); fp.write((char*)&st,sizeof(student)); cout<<"\n\ndo you want to add more record..(y/n?)"; cin>>ch; }while(ch=='y'||ch=='Y'); fp.close(); } //*************************************************************** // function to read specific record from file //**************************************************************** void display_spb(char n[]) { cout<<"\nBOOK DETAILS\n"; int flag=0; fp.open("book.dat",ios::in); while(fp.read((char*)&bk,sizeof(book))) { if(strcmpi(bk.retbno(),n)==0) { bk.show_book(); flag=1; } } fp.close(); if(flag==0) cout<<"\n\nBook does not exist"; getch(); } void display_sps(char n[]) { cout<<"\nSTUDENT DETAILS\n"; int flag=0; fp.open("student.dat",ios::in); while(fp.read((char*)&st,sizeof(student))) { if((strcmpi(st.retadmno(),n)==0)) { st.show_student(); flag=1; } } fp.close(); if(flag==0) cout<<"\n\nStudent does not exist"; getch(); } //*************************************************************** // function to modify record of file //**************************************************************** void modify_book() { char n[6]; int found=0; clrscr(); cout<<"\n\n\tMODIFY BOOK REOCORD.... "; cout<<"\n\n\tEnter The book no. of The book"; cin>>n; fp.open("book.dat",ios::in|ios::out); while(fp.read((char*)&bk,sizeof(book)) && found==0) { if(strcmpi(bk.retbno(),n)==0) { bk.show_book(); cout<<"\nEnter The New Details of book"<>n; fp.open("student.dat",ios::in|ios::out); while(fp.read((char*)&st,sizeof(student)) && found==0) { if(strcmpi(st.retadmno(),n)==0) { st.show_student(); cout<<"\nEnter The New Details of student"<>n; fp.open("student.dat",ios::in|ios::out); fstream fp2; fp2.open("Temp.dat",ios::out); fp.seekg(0,ios::beg); while(fp.read((char*)&st,sizeof(student))) { if(strcmpi(st.retadmno(),n)!=0) fp2.write((char*)&st,sizeof(student)); else flag=1; } fp2.close(); fp.close(); remove("student.dat"); rename("Temp.dat","student.dat"); if(flag==1) cout<<"\n\n\tRecord Deleted .."; else cout<<"\n\nRecord not found"; getch(); } void delete_book() { char n[6]; clrscr(); cout<<"\n\n\n\tDELETE BOOK ..."; cout<<"\n\nEnter The Book no. of the Book You Want To Delete : "; cin>>n; fp.open("book.dat",ios::in|ios::out); fstream fp2; fp2.open("Temp.dat",ios::out); fp.seekg(0,ios::beg); while(fp.read((char*)&bk,sizeof(book))) { if(strcmpi(bk.retbno(),n)!=0) { fp2.write((char*)&bk,sizeof(book)); } } fp2.close(); fp.close(); remove("book.dat"); rename("Temp.dat","book.dat"); cout<<"\n\n\tRecord Deleted .."; getch(); } //*************************************************************** // function to display all students list //**************************************************************** void display_alls() { clrscr(); fp.open("student.dat",ios::in); if(!fp) { cout<<"ERROR!!! FILE COULD NOT BE OPEN "; getch(); return; } cout<<"\n\n\t\tSTUDENT LIST\n\n"; cout<<"==============================================================\n"; cout<<"\tAdmission No."<>sn; fp.open("student.dat",ios::in|ios::out); fp1.open("book.dat",ios::in|ios::out); while(fp.read((char*)&st,sizeof(student)) && found==0) { if(strcmpi(st.retadmno(),sn)==0) { found=1; if(st.rettoken()==0) { cout<<"\n\n\tEnter the book no. "; cin>>bn; while(fp1.read((char*)&bk,sizeof(book))&& flag==0) { if(strcmpi(bk.retbno(),bn)==0) { bk.show_book(); flag=1; st.addtoken(); st.getstbno(bk.retbno()); int pos=-1*sizeof(st); fp.seekp(pos,ios::cur); fp.write((char*)&st,sizeof(student)); cout<<"\n\n\t Book issued successfully\n\nPlease Note: Write current date"; cout<<"in backside of book and submit within 15 days fine Rs. 1 for each day"; cout<<"after 15 days period"; } } if(flag==0) cout<<"Book no does not exist"; } else cout<<"You have not returned the last book "; } } if(found==0) cout<<"Student record not exist..."; getch(); fp.close(); fp1.close(); } //*************************************************************** // function to deposit book //**************************************************************** void book_deposit() { char sn[6],bn[6]; int found=0,flag=0,day,fine; clrscr(); cout<<"\n\nBOOK DEPOSIT ..."; cout<<"\n\n\tEnter The student’s admission no."; cin>>sn; fp.open("student.dat",ios::in|ios::out); fp1.open("book.dat",ios::in|ios::out); while(fp.read((char*)&st,sizeof(student)) && found==0) { if(strcmpi(st.retadmno(),sn)==0) { found=1; if(st.rettoken()==1) { while(fp1.read((char*)&bk,sizeof(book))&& flag==0) { if(strcmpi(bk.retbno(),st.retstbno())==0) { bk.show_book(); flag=1; cout<<"\n\nBook deposited in no. of days"; cin>>day; if(day>15) { fine=(day-15)*1; cout<<"\n\nFine has to deposited Rs. "<>ch2; switch(ch2) { case 1: clrscr(); write_student();break; case 2: display_alls();break; case 3: char num[6]; clrscr(); cout<<"\n\n\tPlease Enter The Admission No. "; cin>>num; display_sps(num); break; case 4: modify_student();break; case 5: delete_student();break; case 6: clrscr(); write_book();break; case 7: display_allb();break; case 8: { char num[6]; clrscr(); cout<<"\n\n\tPlease Enter The book No. "; cin>>num; display_spb(num); break; } case 9: modify_book();break; case 10: delete_book();break; case 11: return; 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. BOOK ISSUE"; cout<<"\n\n\t02. BOOK DEPOSIT"; cout<<"\n\n\t03. ADMINISTRATOR MENU"; cout<<"\n\n\t04. EXIT"; cout<<"\n\n\tPlease Select Your Option (1-4) "; ch=getche(); switch(ch) { case '1':clrscr(); book_issue(); break; case '2':book_deposit(); break; case '3':admin_menu(); break; case '4':exit(0); default :cout<<"\a"; } }while(ch!='4'); }

library management