LibraryManagementSystem.cpp

#include<iostream>
#include<fstream>
using namespace std;

class temp{

    string id,name,author,search;
    fstream file;
    public:
    void addBook();
    void showAll();
    void extractBook();

}obj;

int main(){

    char choice;
    cout<<"----------------------------------"<<endl;
    cout<<"1-Show All Books"<<endl;
    cout<<"2-Extract Book"<<endl;
    cout<<"3-Add books(ADMIN)"<<endl;
    cout<<"4-Exit"<<endl;
    cout<<"----------------------------------"<<endl;
    cout<<"Enter Your Choice :: ";
    cin>>choice;

    switch(choice){
        case '1':
            cin.ignore();
            obj.showAll();
        break;
        case '2':
            cin.ignore();
            obj.extractBook();
        break;
        case '3':
            cin.ignore();
            obj.addBook();
        break;
        case '4':
            return 0;
        break;
        default:
            cout<<"Invalid Choice...!";
    }
    

    return 0;
}
void temp :: addBook(){
    cout<<"\nEnter Book ID :: ";
    getline(cin,id);
    cout<<"Enter Book Name :: ";
    getline(cin,name);
    cout<<"Enter Book's Author name :: ";
    getline(cin,author);

    file.open("bookData.txt",ios :: out | ios :: app);
    file<<id<<"*"<<name<<"*"<<author<<endl;
    file.close();
}
void temp :: showAll(){
    file.open("bookData.txt",ios :: in);
    getline(file,id,'*');
    getline(file,name,'*');
    getline(file,author,'\n');
        cout<<"\n\n";
        cout<<"\t\t Book Id \t\t\t Book Name \t\t\t Author's Name"<<endl;
    while(!file.eof()){
        cout<<"\t\t "<<id<<" \t\t\t\t "<<name<<" \t\t\t "<<author<<endl;

        getline(file,id,'*');
    getline(file,name,'*');
    getline(file,author,'\n');
    }
    file.close();
}
void temp :: extractBook(){

    showAll();
    cout<<"Enter Book Id :: ";
    getline(cin,search);

    file.open("bookData.txt",ios :: in);
    getline(file,id,'*');
    getline(file,name,'*');
    getline(file,author,'\n');

    cout<<"\n\n";
    cout<<"\t\t Book Id \t\t\t Book Name \t\t\t Author's Name"<<endl;
    while(!file.eof()){
        if(search == id){
            cout<<"\t\t "<<id<<" \t\t\t "<<name<<" \t\t\t "<<author<<endl;
            cout<<"Book Extracted Successfully...!";
        }
    getline(file,id,'*');
    getline(file,name,'*');
    getline(file,author,'\n');
    }
    file.close();
}