Library management system project in C++. Library Management System is the very important and very famous project and most of the student select this project when they study the C++ course in university or college.
Features of Library management system project in C++
- Login
- Books
- Add books
- modify books
- view books
- delete books
- Issue book and Re-issue the book
- Return book
- Change password
- Fine charge on late submission of book.
Note: Password to login for the librarian is “pass”.
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#include<iostream> #include<stdio.h> #include<stdlib.h> #include<fstream> #include<string.h> #include<conio.h> using namespace std; class Lib { public: char BookTitle[100],BookAuthor[50],StringCopy[20],StringCopy1[50]; int q,B,p; Lib() { strcpy(BookTitle,"NO Book Title"); strcpy(BookAuthor,"No Author Name"); strcpy(StringCopy,"No Book ID"); strcpy(StringCopy1,"No Book ID"); q=0; B=0; p=0; } void get(); void LibraryStudent(); void pass(); void LibraryClerk(); void SecurityPassword(); void getdata(); void show(int); void ListofBooks(int); void update(); void see(int); int branch(int); void BookIssue(); void der(char[],int,int); void fine(int,int,int,int,int,int); }; void Lib::getdata() { int i; fflush(stdin); cout<<"\nEnter the details :-\n"<<endl; cout<<"\nEnter Book's Name : "<<endl; cin.getline(BookTitle,100); for(i=0;BookTitle[i]!='\0';i++) { if(BookTitle[i]>='a'&&BookTitle[i]<='z') BookTitle[i]-=32; } cout<<"\nEnter Author's Name : "<<endl; cin.getline(BookAuthor,50); cout<<"\nEnter Publication name : "<<endl; cin.getline(StringCopy1,50); cout<<"\nEnter Book's ID : "<<endl; cin.getline(StringCopy,20); cout<<"\nEnter Book's Price : "<<endl; cin>>p; cout<<"\nEnter Book's Quantity : "<<endl; cin>>q; } void Lib::show(int i) { cout<<"\nBook Title : "<<BookTitle<<endl; cout<<"\nBook's Author Name : "<<BookAuthor<<endl; cout<<"\nBook's ID : "<<StringCopy<<endl; cout<<"\nBook's Publication : "<<StringCopy1<<endl; if(i==2) { cout<<"\nBook's Price : "<<p<<endl; cout<<"\nBook's Quantity : "<<q<<endl; } } void Lib::ListofBooks(int i) { int b,r=0; system("cls"); b=branch(i); system("cls"); ifstream intf("Booksdata.txt",ios::binary); if(!intf) cout<<"\nFile Not Found."<<endl; else { cout<<"\n ************ Book List ************ \n\n"<<endl; intf.read((char*)this,sizeof(*this)); while(!intf.eof()) { if(b==B) { if(q==0 && i==1) { } else { r++; cout<<"\n********** "<<r<<". ********** \n"<<endl; show(i); } } intf.read((char*)this,sizeof(*this)); } } cout<<"\nPress any key to continue....."<<endl; getch(); system("cls"); if(i==1) LibraryStudent(); else LibraryClerk(); } void Lib::update() { char ch,st1[100]; int i=0,b,cont=0; system("cls"); cout<<"\n>>Please Choose one option :-\n"<<endl; cout<<"\n1.Modification In Current Books\n\n2.Add New Book\n\n3.Delete A Book\n\n4.Go back\n"<<endl; cout<<"\n\n Excuse me!Please Enter your choice : "<<endl; cin>>i; if(i==1) { system("cls"); b=branch(2); ifstream intf1("Booksdata.txt",ios::binary); if(!intf1) { cout<<"\nFile Not Found\n"<<endl; cout<<"\nPress any key to continue....."<<endl; getch(); system("cls"); LibraryClerk(); } intf1.close(); system("cls"); cout<<"\nPlease Choose One Option :-\n"<<endl; cout<<"\n1.Search By Book Title\n\n2.Search By Book's ID\n"<<endl; cout<<"\nEnter Your Choice : "<<endl; cin>>i; fflush(stdin); if(i==1) { system("cls"); cout<<"\nEnter Book Title : "<<endl; cin.getline(st1,100); system("cls"); fstream intf("Booksdata.txt",ios::in|ios::out|ios::ate|ios::binary); intf.seekg(0); intf.read((char*)this,sizeof(*this)); while(!intf.eof()) { for(i=0;b==B&&BookTitle[i]!='\0'&&st1[i]!='\0'&&(st1[i]==BookTitle[i]||st1[i]==BookTitle[i]+32);i++); if(BookTitle[i]=='\0'&&st1[i]=='\0') { cont++; getdata(); intf.seekp(intf.tellp()-sizeof(*this)); intf.write((char*)this,sizeof(*this)); break; } intf.read((char*)this,sizeof(*this)); } intf.close(); } else if(i==2) { cout<<"\nEnter Book's ID : "<<endl; cin.getline(st1,100); system("cls"); fstream intf("Booksdata.txt",ios::in|ios::out|ios::ate|ios::binary); intf.seekg(0); intf.read((char*)this,sizeof(*this)); while(!intf.eof()) { for(i=0;b==B&&StringCopy[i]!='\0'&&st1[i]!='\0'&&st1[i]==StringCopy[i];i++); if(StringCopy[i]=='\0'&&st1[i]=='\0') { cont++; getdata(); intf.seekp(intf.tellp()-sizeof(*this)); intf.write((char*)this,sizeof(*this)); break; } intf.read((char*)this,sizeof(*this)); } intf.close(); } else { cout<<"\nWrong Input.....:(\n"<<endl; cout<<"\nPress any key to continue....."<<endl; getch(); system("cls"); update(); } if(cont==0) { cout<<"\nBook Not Found.\n"<<endl; cout<<"\nPress any key to continue....."<<endl; getch(); system("cls"); update(); } else cout<<"\nUpdate Successful.\n"<<endl; } else if(i==2) { system("cls"); B=branch(2); system("cls"); getdata(); ofstream outf("Booksdata.txt",ios::app|ios::binary); outf.write((char*)this,sizeof(*this)); outf.close(); cout<<"\nBook added Successfully.\n"<<endl; } else if(i==3) { system("cls"); b=branch(2); ifstream intf1("Booksdata.txt",ios::binary); if(!intf1) { cout<<"\nFile Not Found\n"<<endl; cout<<"\nPress any key to continue....."<<endl; getch(); intf1.close(); system("cls"); LibraryClerk(); } intf1.close(); system("cls"); cout<<"\nPlease Choose One Option for deletion:-\n"<<endl; cout<<"\n1.By Book Title\n\n2.By Book's ID\n"<<endl; cout<<"\nEnter Your Choice : "<<endl; cin>>i; fflush(stdin); if(i==1) { system("cls"); cout<<"\nEnter Book Title : "<<endl; cin.getline(st1,100); ofstream outf("temp.txt",ios::app|ios::binary); ifstream intf("Booksdata.txt",ios::binary); intf.read((char*)this,sizeof(*this)); while(!intf.eof()) { for(i=0;b==B&&BookTitle[i]!='\0'&&st1[i]!='\0'&&(st1[i]==BookTitle[i]||st1[i]==BookTitle[i]+32);i++); if(BookTitle[i]=='\0'&&st1[i]=='\0') { cont++; intf.read((char*)this,sizeof(*this)); } else { outf.write((char*)this,sizeof(*this)); intf.read((char*)this,sizeof(*this)); } } intf.close(); outf.close(); remove("Booksdata.txt"); rename("temp.txt","Booksdata.txt"); } else if(i==2) { cout<<"\nEnter Book's ID : "<<endl; cin.getline(st1,100); ofstream outf("temp.txt",ios::app|ios::binary); ifstream intf("Booksdata.txt",ios::binary); intf.read((char*)this,sizeof(*this)); while(!intf.eof()) { for(i=0;b==B&&StringCopy[i]!='\0'&&st1[i]!='\0'&&st1[i]==StringCopy[i];i++); if(StringCopy[i]=='\0'&&st1[i]=='\0') { cont++; intf.read((char*)this,sizeof(*this)); } else { outf.write((char*)this,sizeof(*this)); intf.read((char*)this,sizeof(*this)); } } outf.close(); intf.close(); remove("Booksdata.txt"); rename("temp.txt","Booksdata.txt"); } else { cout<<"\nWrong Input.....:(\n"<<endl; cout<<"\nPress any key to continue....."<<endl; getch(); system("cls"); update(); } if(cont==0) { cout<<"\nBook Not Found.\n"<<endl; cout<<"\nPress any key to continue....."<<endl; getch(); system("cls"); update(); } else cout<<"\nDeletion Successful.\n"<<endl; } else if(i==4) { system("cls"); LibraryClerk(); } else { cout<<"\nWrong Input.\n"<<endl; cout<<"\nPress any key to continue....."<<endl; getch(); system("cls"); update(); } cout<<"\nPress any key to continue....."<<endl; getch(); system("cls"); LibraryClerk(); } int Lib::branch(int x) { int i; cout<<"\n>>Please Choose one Branch :-\n"<<endl; cout<<"\n1.BIT\n\n2.EE\n\n3.EC\n\n4.CIVIL\n\n5.MECHANICAL\n\n6.1ST YEAR\n\n7.Go to menu\n"<<endl; cout<<"\nEnter youur choice : "<<endl; cin>>i; switch(i) { case 1: return 1; break; case 2: return 2; break; case 3: return 3; break; case 4: return 4; break; case 5: return 5; break; case 6: return 6; break; case 7: system("cls"); if(x==1) LibraryStudent(); else LibraryClerk(); default : cout<<"\nPlease enter correct option :("<<endl; getch(); system("cls"); branch(x); } } void Lib::see(int x) { int i,b,cont=0; char ch[100]; system("cls"); b=branch(x); ifstream intf("Booksdata.txt",ios::binary); if(!intf) { cout<<"\nFile Not Found.\n"<<endl; cout<<"\n->Press any key to continue....."<<endl; getch(); system("cls"); if(x==1) LibraryStudent(); else LibraryClerk(); } system("cls"); cout<<"\nPlease Choose one option :-\n"<<endl; cout<<"\n1.Search By Name\n\n2.Search By Book's ID\n"<<endl; cout<<"\nEnter Your Choice : "<<endl; cin>>i; fflush(stdin); intf.read((char*)this,sizeof(*this)); if(i==1) { cout<<"\nEnter Book's Name : "<<endl; cin.getline(ch,100); system("cls"); while(!intf.eof()) { for(i=0;b==B&&q!=0&&BookTitle[i]!='\0'&&ch[i]!='\0'&&(ch[i]==BookTitle[i]||ch[i]==BookTitle[i]+32);i++); if(BookTitle[i]=='\0'&&ch[i]=='\0') { cout<<"\nBook Found :-\n"<<endl; show(x); cont++; break; } intf.read((char*)this,sizeof(*this)); } } else if(i==2) { cout<<"\nEnter Book's ID : "<<endl; cin.getline(ch,100); system("cls"); while(!intf.eof()) { for(i=0;b==B&&q!=0&&StringCopy[i]!='\0'&&ch[i]!='\0'&&ch[i]==StringCopy[i];i++); if(StringCopy[i]=='\0'&&ch[i]=='\0') { cout<<"\nBook Found :-\n"<<endl; show(x); cont++; break; } intf.read((char*)this,sizeof(*this)); } } else { cont++; cout<<"\nPlease enter correct option :("<<endl; getch(); system("cls"); see(x); } intf.close(); if(cont==0) cout<<"\nThis Book is not available :( \n"<<endl; cout<<"\nPress any key to continue....."<<endl; getch(); system("cls"); if(x==1) LibraryStudent(); else LibraryClerk(); } void Lib::BookIssue() { char st[50],st1[20]; int b,i,j,d,m,y,dd,mm,yy,cont=0; system("cls"); cout<<"\n->Please Choose one option :-\n"<<endl; cout<<"\n1.BookIssue Book\n\n2.View BookIssued Book\n\n3.Search LibraryStudent who isuued books\n\n4.ReBookIssue Book\n\n5.Return Book\n\n6.Go back to menu\n\nEnter Your Choice : "<<endl; cin>>i; fflush(stdin); if(i==1) { system("cls"); b=branch(2); system("cls"); fflush(stdin); cout<<"\n->Please Enter Details :-\n"<<endl; cout<<"\nEnter Book Title : "<<endl; cin.getline(BookTitle,100); cout<<"\nEnter Book's ID : "<<endl; cin.getline(StringCopy,20); //strcpy(st,StringCopy); der(StringCopy,b,1); cout<<"\nEnter LibraryStudent Name : "<<endl; cin.getline(BookAuthor,100); cout<<"\nEnter LibraryStudent's ID : "<<endl; cin.getline(StringCopy1,20); cout<<"\nEnter date : "<<endl; cin>>q>>B>>p; ofstream outf("LibraryStudent.txt",ios::binary|ios::app); outf.write((char*)this,sizeof(*this)); outf.close(); cout<<"\n\nBookIssue Successfully.\n"<<endl; } else if(i==2) { ifstream intf("LibraryStudent.txt",ios::binary); system("cls"); cout<<"\n->The Details are :-\n"<<endl; intf.read((char*)this,sizeof(*this)); i=0; while(!intf.eof()) { i++; cout<<"\n********** "<<i<<". ********** \n"<<endl; cout<<"\nLibraryStudent Name : "<<BookAuthor<<"\n"<<"LibraryStudent's ID : "<<StringCopy1<<"\n"<<"Book Title : "<<BookTitle<<"\n"<<"Book's ID : "<<StringCopy<<"\n"<<"Date : "<<q<<"/"<<B<<"/"<<p<<"\n"<<endl; intf.read((char*)this,sizeof(*this)); } intf.close(); } else if(i==3) { system("cls"); fflush(stdin); cout<<"\n->Please Enter Details :-\n"<<endl; cout<<"\n\nEnter LibraryStudent Name : "<<endl; cin.getline(st,50); cout<<"\n\nEnter LibraryStudent's ID : "<<endl; cin.getline(st1,20); system("cls"); ifstream intf("LibraryStudent.txt",ios::binary); intf.read((char*)this,sizeof(*this)); cont=0; while(!intf.eof()) { for(i=0;StringCopy1[i]!='\0'&&st1[i]!='\0'&&st1[i]==StringCopy1[i];i++); if(StringCopy1[i]=='\0'&&st1[i]=='\0') { cont++; if(cont==1) { cout<<"\n->The Details are :-\n"<<endl; cout<<"\nLibraryStudent Name : "<<BookAuthor; cout<<"\nLibraryStudent's ID : "<<StringCopy1; } cout<<"\n\n******* "<<cont<<". Book details *******\n"<<endl; cout<<"\nBook Title : "<<BookTitle; cout<<"\nBook's ID : "<<StringCopy; cout<<"\nDate : "<<q<<"/"<<B<<"/"<<p<<"\n"<<endl; } intf.read((char*)this,sizeof(*this)); } intf.close(); if(cont==0) cout<<"\nNo record found."<<endl; } else if(i==4) { system("cls"); fflush(stdin); cout<<"\n->Please Enter Details :-\n"<<endl; cout<<"\n\nEnter LibraryStudent's ID : "<<endl; cin.getline(st,50); cout<<"\nEnter Book's ID : "<<endl; cin.getline(st1,20); fstream intf("LibraryStudent.txt",ios::in|ios::out|ios::ate|ios::binary); intf.seekg(0); intf.read((char*)this,sizeof(*this)); while(!intf.eof()) { for(i=0;StringCopy[i]!='\0'&&st1[i]!='\0'&&st1[i]==StringCopy[i];i++); for(j=0;StringCopy1[j]!='\0'&&st[j]!='\0'&&st[j]==StringCopy1[j];j++); if(StringCopy[i]=='\0'&&StringCopy1[j]=='\0'&&st[j]=='\0'&&st1[i]=='\0') { d=q; m=B; y=p; cout<<"\nEnter New Date : "<<endl; cin>>q>>B>>p; fine(d,m,y,q,B,p); //fn1 intf.seekp(intf.tellp()-sizeof(*this)); //fn3 intf.write((char*)this,sizeof(*this)); //fn5 cout<<"\n\nReBookIssue successfully."<<endl; //fn3 break; } intf.read((char*)this,sizeof(*this)); } intf.close(); } else if(i==5) { system("cls"); b=branch(2); system("cls"); fflush(stdin); cout<<"\n->Please Enter Details :-\n"<<endl; cout<<"\nEnter Book's ID : "<<endl; cin.getline(st1,20); der(st1,b,2); cout<<"\n\nEnter LibraryStudent's ID : "<<endl; cin.getline(st,20); cout<<"\nEnter Present date : "<<endl; cin>>d>>m>>y; ofstream outf("temp.txt",ios::app|ios::binary); ifstream intf("LibraryStudent.txt",ios::binary); intf.read((char*)this,sizeof(*this)); while(!intf.eof()) { for(i=0;StringCopy[i]!='\0'&&st1[i]!='\0'&&st1[i]==StringCopy[i];i++); for(j=0;StringCopy1[j]!='\0'&&st[j]!='\0'&&st[j]==StringCopy1[j];j++); if(StringCopy[i]=='\0'&&StringCopy1[j]=='\0'&&st[j]=='\0'&&st1[i]=='\0'&&cont==0) { cont++; intf.read((char*)this,sizeof(*this)); fine(q,B,p,d,m,y); cout<<"\nReturned successfully."<<endl; } else { outf.write((char*)this,sizeof(*this)); intf.read((char*)this,sizeof(*this)); } } intf.close(); outf.close(); getch(); remove("LibraryStudent.txt"); rename("temp.txt","LibraryStudent.txt"); } else if(i==6) { system("cls"); LibraryClerk(); } else cout<<"\nWrong Input.\n"<<endl; cout<<"\n\nPress any key to continue....."<<endl; getch(); system("cls"); LibraryClerk(); } void Lib::fine(int d,int m,int y,int dd,int mm,int yy) { long int n1,n2; int years,l,i; const int monthDays[12] = {31, 28, 31, 30, 31, 30,31, 31, 30, 31, 30, 31}; n1 = y*365 + d; for (i=0; i<m - 1; i++) n1 += monthDays[i]; //fn1353 years = y; if (m <= 2) years--; l= years / 4 - years / 100 + years / 400; n1 += l; n2 = yy*365 + dd; for (i=0; i<mm - 1; i++) n2 += monthDays[i]; years = yy; if (m <= 2) years--; l= years / 4 - years / 100 + years / 400; n2 += l; n1=n2-n1; n2=n1-15; if(n2>0) cout<<"\nThe Total Fine is : "<<n2; } void Lib::der(char st[],int b,int x) { int i,cont=0; fstream intf("Booksdata.txt",ios::in|ios::out|ios::ate|ios::binary); intf.seekg(0); intf.read((char*)this,sizeof(*this)); while(!intf.eof()) { for(i=0;b==B&&StringCopy[i]!='\0'&&st[i]!='\0'&&st[i]==StringCopy[i];i++); if(StringCopy[i]=='\0'&&st[i]=='\0') { cont++; if(x==1) { q--; } else { q++; } intf.seekp(intf.tellp()-sizeof(*this)); intf.write((char*)this,sizeof(*this)); break; } intf.read((char*)this,sizeof(*this)); } if(cont==0) { cout<<"\nBook not found.\n"<<endl; cout<<"\n\nPress any key to continue....."<<endl; getch(); system("cls"); BookIssue(); } intf.close(); } void Lib::get() { int i; cout<<"\n LIBRARY MANAGEMENT SYSTEM \n"<<"\n\ n"<<endl; cout<<"\n>>Please Choose Any Option To login \n"<<endl; cout<<"\n1.LibraryStudent\n\n2.LibraryClerk\n\n3.Close Application\n"<<endl; cout<<"\nEnter your choice : "<<endl; cin>>i; if(i==1) { system("cls"); LibraryStudent(); } else if(i==2) pass(); else if(i==3) exit(0); else { cout<<"\nPlease enter correct option :("<<endl; getch(); system("CLS"); get(); } } void Lib::LibraryStudent() { int i; cout<<"\n************ WELCOME LIBRARYSTUDENT ************\n"<<endl; cout<<"\n>>Please Choose One Option:\n"<<endl; cout<<"\n1.View ListofBooks\n\n2.Search for a Book\n\n3.Go to main menu\n\n4.Close Application\n"<<endl; cout<<"\nEnter your choice : "<<endl; cin>>i; if(i==1) ListofBooks(1); else if(i==2) see(1); else if(i==3) { system("cls"); get(); } else if(i==4) exit(0); else { cout<<"\nPlease enter correct option :("<<endl; getch(); system("cls"); LibraryStudent(); } } void Lib::pass() { int i=0; char ch,st[21],ch1[21]={"pass"}; cout<<"\nEnter SecurityPassword : "<<endl; while(1) { ch=getch(); if(ch==13) { st[i]='\0'; break; } else if(ch==8&&i>0) { i--; cout<<"\b \b"<<endl; } else { cout<<"*"<<endl; st[i]=ch; i++; } } ifstream inf("SecurityPassword.txt"); inf>>ch1; inf.close(); for(i=0;st[i]==ch1[i]&&st[i]!='\0'&&ch1[i]!='\0';i++); if(st[i]=='\0'&&ch1[i]=='\0') { system("cls"); LibraryClerk(); } else { cout<<"\n\nWrong SecurityPassword.\n\ntry again.....\n"<<endl; getch(); system("cls"); get(); } } void Lib::LibraryClerk() { int i; cout<<"\n************ WELCOME LIBRARYCLERK ************\n"<<endl; cout<<"\n>>Please Choose One Option:\n"<<endl; cout<<"\n1.View ListofBooks\n\n2.Search for a Book\n\n3.Update/Add Book\n\n4.BookIssue Book\n\n5.Go to main menu\n\n6.Change SecurityPassword\n\n7.Close Application\n"<<endl; cout<<"\nEnter your choice : "<<endl; cin>>i; switch(i) { case 1:ListofBooks(2); break; case 2:see(2); break; case 3:update(); break; case 4:BookIssue(); break; case 5:system("cls"); get(); break; case 6:SecurityPassword(); break; case 7:exit(0); default:cout<<"\nPlease enter correct option :("<<endl; getch(); system("cls"); LibraryClerk(); } } void Lib::SecurityPassword() { int i=0,j=0; char ch,st[21],ch1[21]={"pass"}; system("cls"); cout<<"\n\nEnter Old SecurityPassword : "<<endl; while(1) { ch=getch(); if(ch==13) { st[i]='\0'; break; } else if(ch==8&&i>0) { i--; cout<<"\b \b"<<endl; } else { cout<<"*"<<endl; st[i]=ch; i++; } } ifstream intf("SecurityPassword.txt"); intf>>ch1; intf.close(); for(i=0;st[i]==ch1[i]&&st[i]!='\0'&&ch1[i]!='\0';i++); if(st[i]=='\0'&&ch1[i]=='\0') { system("cls"); cout<<"\n**The SecurityPassword Should be less than 20 characters & don't use spaces**\n\n"<<endl; cout<<"\nEnter New SecurityPassword : "<<endl; fflush(stdin); i=0; while(1) { j++; ch=getch(); if(ch==13) { for(i=0;st[i]!=' '&&st[i]!='\0';i++); if(j>20 || st[i]==' ') { cout<<"\n\nYou did't follow the instruction \n\nPress any key for try again....."<<endl; getch(); system("cls"); SecurityPassword(); LibraryClerk(); } st[i]='\0'; break; } else if(ch==8&&i>0) { i--; cout<<"\b \b"<<endl; } else { cout<<"*"<<endl; st[i]=ch; i++; } } ofstream outf("SecurityPassword.txt"); outf<<st; outf.close(); cout<<"\n\nYour SecurityPassword has been changed Successfully."<<endl; cout<<"\nPress any key to continue......"<<endl; getch(); system("cls"); LibraryClerk(); } else { cout<<"\n\nSecurityPassword is wrong.....\n"<<endl; cout<<"\nEnter 1 for retry or 2 for menu"<<endl; cin>>i; if(i==1) { system("cls"); SecurityPassword(); } else { system("cls"); LibraryClerk(); } } } int main() { Lib obj; obj.get(); getch(); return 0; } |
Output
