Question

Implement a C++ program to develop a simple Library. Library contains pile of books and each book comprises of ISBN (cannot be changed), Name, Author Name, Publisher Name, Issue Date, Return Date. [using Structures]

Answer 1

In C++ a structure is a collection of different data type variables refered under a single name. it is very much similar to a class but it cannot hold the associated functions of the elements/data members in the block so given next to this explaination of structures is the code asked in the question.so its a very basic library system in which you can add a book by using insert function.

#include<iostream.h>
#include<conio.h>

struct book{
   char name[50];
   int ISBN;
   char authorname[50];
   char publishername[50];
   int issuedate;
   int issuemonth;
   int issueyear;
   int retdate;
   int retmonth;
   int retyear;
   struct book *next=NULL;
}

void insert(struct book *head){
    if *head.next==NULL{
       struct book node;
       cout<<"enter the name of book";
 
       gets(node.name)
       cout<<"enter the author name of book";
       gets(node.authorname)
       cout<<"enter the publisher name of book";
       gets(node.publishername)
       cout<<"enter isbn no.";
       cin>>node.ISBN;
       cout<<"enter the issue date month and year";
       cin>>node.issuedate;
       cin>>node.issuemonth;
       cin>>node.issueyear;
       cout<<"enter the return date month and year";
       cin>>node.retdate;
       cin>>node.retmonth;
       cin>>node.retyear;
       *head.next=&node;
    }
   else{
       insert(*head.next);
}
}
void main(){

//the pile of the books will be stored in a linked list where ISBN no. can be a searching key 
struct book library;//first book in library

insert(library);//inserting a book in library
insert(library);//inserting a book in library
getch();
}

*this code may or may not contain bugs.