Maintain Book Records
Write a C++ Program to Maintain Book Records using File Handling using File Handling. Here’s simple Program to Maintain Book Records using File Handling in C++ Programming Language.
Example Program in C++ Using file handling to perform following operations:
1) add new record
2) View all records
3) Delete particular record
4) Search record
5) Update record
Below is the source code for C++ Program to Maintain Book Records using File Handling which is successfully compiled and run on Windows System.
SOURCE CODE : :
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/* C++ Program to Maintain Book Records using File Handling */ #include<iostream> #include<stdio.h> #include<fstream> #include<iomanip> #include<string.h> using namespace std; int menu(); class Book { private: int bookid; char title[20]; float price; protected: int allotbookid(); void showheader(); public: void getbook(); void showbook(); void addbook(); void viewbook(); void searchbook(); void deletebook(); void modifybook(); }; int Book::allotbookid() { ifstream fin; Book temp; int id=0; fin.open("C:\\Users\\acer\\Documents\\books.txt",ios::in|ios::binary); if(!fin) return(id+1); else { fin.read((char*)&temp,sizeof(temp)); while(!fin.eof()) { id=temp.bookid; fin.read((char*)&temp,sizeof(temp)); } id++; return(id); } } void Book::showheader() { cout<<left; cout<<"\n"<<setw(10)<<"BOOK ID"<<setw(10)<<"Price"<<setw(10)<<"Title\n"; } void Book::getbook() { cout<<"Enter Book Title: "; fflush(stdin); gets(title); cout<<"Price of Book: "; cin>>price; bookid=allotbookid(); } void Book::showbook() { cout<<left; cout<<"\n"<<setw(10)<<bookid<<setw(10)<<price<<setw(10)<<title; } void Book::addbook() { ofstream fout; fout.open("C:\\Users\\acer\\Documents\\books.txt",ios::out|ios::app|ios::binary); if(!fout) cout<<"File can not open"; else fout.write((char*)this,sizeof(*this)); fout.close(); } void Book::viewbook() { ifstream fin; fin.open("C:\\Users\\acer\\Documents\\books.txt",ios::in|ios::binary); if(!fin) cout<<"File not found"; else { showheader(); fin.read((char*)this,sizeof(*this)); while(!fin.eof()) { showbook(); fin.read((char*)this,sizeof(*this)); } } fin.close(); } void Book::searchbook() { ifstream fin; char str[20]; fin.open("C:\\Users\\acer\\Documents\\books.txt",ios::in|ios::binary); cout<<"Enter the name of book to search:"; fflush(stdin); gets(str); if(!fin) cout<<"File not found"; else { fin.read((char*)this,sizeof(*this)); while(!fin.eof()) { if(!strcmp(this->title,str)) { showheader(); showbook(); break; } fin.read((char*)this,sizeof(*this)); } if(fin.eof()) cout<<"\nRecord not found"; } fin.close(); } void Book:: modifybook() { int id,r=0; fstream file; file.open("C:\\Users\\acer\\Documents\\books.txt",ios::in|ios::out|ios::ate|ios::binary); cout<<"\nEnter record number to modify (bookid): "; cin>>id; file.seekg(0); if(!file) cout<<"File not found"; else { file.read((char*)this,sizeof(*this)); while(!file.eof()) { r++; if(bookid==id) { showheader(); showbook(); cout<<"\nRe-enter book details:\n"; cout<<"Enter book title:"; fflush(stdin); gets(title); cout<<"Enter book price"; cin>>price; file.seekp((r-1)*sizeof(Book),ios::beg); file.write((char*)this,sizeof(*this)); break; } file.read((char*)this,sizeof(*this)); } if(file.eof()) cout<<"Record not found"; } file.close(); } void Book:: deletebook() { ifstream fin; ofstream fout; int id; char x; fin.open("C:\\Users\\acer\\Documents\\books.txt",ios::in|ios::binary); fout.open("C:\\Users\\acer\\Documents\\tempbooks.txt",ios::out|ios::app|ios::binary); cout<<"Enter bookid to delete record"; cin>>id; if(!fin) cout<<"File not found"; else { fin.read((char*)this,sizeof(*this)); while(!fin.eof()) { if(this->bookid==id) { cout<<"Record you want to delete is:\n\n"; showheader(); showbook(); cout<<"\nAre you sure you want to delete this record(y/n): "; fflush(stdin); cin>>x; if(x=='n') fout.write((char*)this,sizeof(*this)); else cout<<"\nRecord is deleted"; } else fout.write((char*)this,sizeof(*this)); fin.read((char*)this,sizeof(*this)); } fin.close(); fout.close(); system("erase C:\\Users\\acer\\Documents\\books.txt"); system("rename C:\\Users\\acer\\Documents\\tempbooks.txt C:\\Users\\acer\\Documents\\books.txt"); } } int menu() { system("cls"); cout<<"\n1. Add new book"; cout<<"\n2. View all books"; cout<<"\n3. Search book"; cout<<"\n4. modify book"; cout<<"\n5. delete book"; cout<<"\n6. Exit"; cout<<"\n\nEnter your choice"; int ch; cin>>ch; return(ch); } int main() { Book b; int ch; while(1) { ch=menu(); switch(ch) { case 1: b.getbook(); b.addbook(); break; case 2: b.viewbook(); break; case 3: b.searchbook(); break; case 4: b.modifybook(); break; case 5: b.deletebook(); break; case 6: exit(0); default: cout<<"Enter Valid choice"; } } return 0; } |
Above is the source code for C++ Program to Maintain Book Records using File Handling which is successfully compiled and run on Windows System.
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Thanks for reading the post….
why i cant run it?