I'm really really stuck. What i'm supposed to do is, first, create a class called Book having the private attributes: title(string), publisher(string), and number of pages(int). For the Book class there are supposed to be two constructors: a default (setting title and publisher to some default value, and number of pages to zero), next is an overloaded constructor that takes 3 parameters and sets title, publisher, and pages accordingly.
I'm unsure whether i wrote the set method mutators and the get method accessors correctly... but what i'm REALLY confused about it where i have to overload the "<<" operator so that a Book object gets output like this ( cout << b; if b is an object of type Book):
TITLE: title
PUBLISHER: publisher
NUMBER OF PAGES: number of pagescode:
#include <iostream>
#include <vector>
#include <string>
#include <cstdlib>
#include <fstream>
using namespace std;
//Class for type "book"
class Book
{
public:
Book();
Book(string new_title, string new_publisher, int new_pages);
string get_new_title();
//function that gets private "title"
string get_new_publisher();
//function that gets private "publisher"
int get_new_pages();
//function that gets private "pages"
void set_t(string new_title);
//function that sets title
void set_p(string new_publisher);
//function that sets publisher
void set_np(int new_pages);
//function that sets pages
friend ostream& operator <<(ostream& outs, const Book& b);
private:
string title;
string publisher;
int pages;
};
class Library
{
public:
vector<Book> books;
bool contains(string title);
//checks to make sure the book doesn't already exist
void addBook(Book b);
//adds books to the library
void readFile(string filname);
//reads file containing information
};
int main()
{
Book b;
ifstream in_stream;
in_stream.open("Library.txt");
int choice;
string filename;
do
{
cout << "1. Read information about books from file." << endl;
cout << "2. Find book." << endl;
cout << "3. Add book to library." << endl;
cout << "4. Print out the library's book collection." << endl;
cout << "5. Quit program." << endl;
cin >> choice;
switch(choice)
{
case 1:
readFile(filename);
break;
case 2:
break;
case 3:
break;
case 4:
break;
case 5:
cout << "GOODBYE!!!!" << endl;
break;
}
}while(choice !=5);
in_stream.close();
return 0;
}
Book::Book() : title(), publisher(), pages(0)
{
//intentionally left blank
}
Book::Book(string new_title, string new_publisher, int new_pages)
{
set_t(new_title);
set_p(new_publisher);
set_np(new_pages);
}
string Book::get_new_title()//function that accesses, "gets", the private data from class book
{
return title;
}
string Book::get_new_publisher()//gets private publisher
{
return publisher;
}
int Book::get_new_pages()//gets private pages
{
return pages;
}
void Book::set_t(string new_title)
{
new_title = title;
}
void Book::set_p(string new_publisher)
{
new_publisher = publisher;
}
void Book::set_np(int new_pages)
{
new_pages = pages;
}
ostream& operator <<(ostream& outs, const Book& b)
{
}
bool contains(string title)
{
if(!contains(Book& books[], Book& string title))
{
cout << "Book not already stored in library" << endl;
}
else
cout << "Book already exists in library" << endl;
}
void Library::addBook(Book b)
{
string title;
string publisher;
int pages;
cout << "Enter the title of the book: " << endl;
cin.ignore(100, '\n');
getline(cin, title);
books.push_back(title);
cout << "Enter the publisher: " << endl;
getline(cin, publisher);
books.push_back(publisher);
cout << "Enter the number of pages: " << endl;
cin >> pages;
books.push_back(pages);
}
void Library::readFile(string filename)
{
cout << "HI!" << endl;
}