Book.cpp

#include <iostream>
#include "Book.h"

//setters
void Book::setID(int x)						//using scope resolution to specify that it's in the Book namespace 
{											//without using Book:: leads to it failing to recognize where the definition is for these
	id = x;
}
void Book::setAvailableQuantity(int x)
{
	availableQuantity = x;
}
void Book::setTitle(const std::string& x)         //used const to make sure the ref isn't modified
{											//the reason to use a reference here is because it's faster in case of long strings
	title = x;								//here we use pass by reference which is faster for strings but shoudn't be used for int and such
}
void Book::setAuthor(const std::string& x)
{
	author = x;
}
void Book::setReleaseYear(int x)
{
	releaseYear = x;
}

//getters
int Book::getID() const
{
	return id;
}
int Book::getAvailableQuantity() const
{
	return availableQuantity;
}
std::string Book::getTitle() const
{
	return title;
}
std::string Book::getAuthor() const
{
	return author;
}
int Book::getReleaseYear() const
{
	return releaseYear;
}

//constructors
Book::Book(int INPUTid, int INPUTavailableQuantity, std::string INPUTtitle, std::string INPUTauthor, int INPUTreleaseYear)
{
	id = INPUTid;
	availableQuantity = INPUTavailableQuantity;
	title = INPUTtitle;
	author = INPUTauthor;
	releaseYear = INPUTreleaseYear;
}
Book::Book()																					//for use without any values as a default
	: id(0), availableQuantity(0), title("temp"), author("temp"), releaseYear(0)		//using a diff way of making a constructor here 
{
}																						//this way uses a : and the member function names are set as the defaults

Book::~Book() = default;		//using the default destructor here