C++. Collection App with Two Classes and Dynamic C- Strings

Question

C++. Collection App with Two Classes and Dynamic C- Strings

Introduction

In this program, you will add another class for managing the array of items. Start by looking at the lecture on classes part II for advice on how to design this class. Also, we will be changing any static C string type to a dynamic C string type. And do a makefile and a git repo for this assessment.

Again, try and keep it reasonably simple to do by the due date but still meets the requirements listed below. You will be graded mainly on how well you follow the listed requirements.

Tasks

Your program should have as a minimum the following tasks (see assessment 1 and 2 for more details on some of these tasks):

a. Allow the user to add as many entries as they want to the collection.

b. Allow the user to print out the entire collection.

c. Allow the user to delete an entry from the collection.

d. Allow the user to read in items from a file.

e. Allow the user to write out items to a file.

Other tasks can be added but only if the above tasks are also present and working correctly. Extra tasks will be graded for completeness and correctness so make sure they work too.

Code Requirements

The program also needs to have the following in your code and directory:

1. There should be TWO classes in your code. One class, which will be a data

class, will be for an item in the list. If yoare using the assessment 2 class, make sure to change any static C strings to dynamic C strings. The other class, called a collection class, is for holding the array of items plus a count of items. The array and count should be the only two member variables in your collection class. If you are using your assessment 2 code, all of the task functions should be moved into this class from the main file. Leave any functions that don't deal with the array in the main file. See lecture on classes part II on more details of how to re-design your assessment 2 code for assessment 4.

2. The code for each class should be in two separate files: a .h header file and a .cpp implementation file. This is beside the main.cpp file so, in all, you need to turn in at least FIVE code files.

3. Member variables must be declared in the private section of the class. Member functions can be declared public if they need to be accessed outside of the class; otherwise they should be private too.

4. The data class (the item class) should have following: a. Getters and setters for all member variables.

b. Default constructor

c. Copy constructor

d. Operator Overloading of the assignment operator (=)

e. Destructor

5. The collection class must have at least a default constructor to initialize the count variable to zero. Other special functions are optional. If you are using any dynamic variables, you need to have a destructor to delete the memory.

6. There should be a makefile in your directory. I will be using it to compile your code.

7. There should also be a git repo in your directory. Again, make sure all code is committed.

Output:

Example Output Runs

Here are 4 runs. Note that any files written out can be read back in when running the program again. Also, reading in will append to the end of the array.

----------------------

RUN 1

----------------------

*** BOOK COLLECTION ***

== Main Menu ==

1 -> read in books from a file

2 -> write out books to a file

3 -> add books to the collection

4 -> print all books

5 -> delete a book from the collection 6 -> quit the program

Please enter a choice (1 to 6)

4

no books in collection

== Main Menu ==

1 -> read in books from a file

2 -> write out books to a file

3 -> add books to the collection

4 -> print all books

5 -> delete a book from the collection

6 -> quit the program

Please enter a choice (1 to 6)

1

Answer 1

//***************BOOK.h

#ifndef _BOOK

#define _BOOK

#define MAX_NUM_BOOKS (1000)

#define BOOK_CSV_BUFF_LENGTH (1024)

typedef

class Book

{

protected:

char * bookTitle;

char * bookAuthor;

int bookYear;

float bookPrice;

public:

Book();

Book(char * title);

Book(char * title, char * author, int yr, float price);

Book(const Book&);

Book(Book*);

~Book();

void Kill();

void SetBookTitle(char * title);

void SetBookAuthor(char * author);

void SetBookYear(int yr) { bookYear =yr; }

void SetBookPrice(float price) { bookPrice =price; }

int GetBookTitleStrLength();

int GetBookAuthorStrLength();

void GetBookTitle(char*);

void GetBookAuthor(char*);

int GetBookYear() { return(bookYear); }

float GetBookPrice() { return(bookPrice); }

void operator=(const Book&);

bool operator==(Book);

bool operator!=(Book);

void Parse(char*bookBuffCSV);

char* SerializeToCSV(char * bookBuffCSV);

void Input();

void Output(char * strTitleMsg=0, bool flagDisplayHorizontally=false);

} *TBook;

#define BOOK_SIZE (sizeof(Book))

typedef struct _TLibrary

{

int count;

TBook books;

} * TLibrary;

#define LIBRARY_SIZE (sizeof(struct _TLibrary))

#define LIBRARY_FILE ("E:\\library.dat") //PLEASE CHANGE THIS

#define LIBRARY_UPDATE_FATAL_ERROR (-4)

void Library_Init(TLibrary);

int Library_Read(TLibrary);

int Library_Write(TLibrary);

void Library_Dump(TLibrary,char*strTitleMsg=0);

int Library_InsertAddNew(TLibrary,TBook);

int Library_RemoveDelete(TLibrary,int iIndexPos);

int Library_IndexerGetAtIndex(TLibrary, int iIndexPos, TBook);

int Library_IndexerSetAtIndex(TLibrary, int iIndexPos, TBook);

typedef int (*TBookCompareCallbackFuncPtr) (TBook,TBook); //compares two books

typedef int (*_TBookCompareCallbackFuncPtr) (const void*,const void*); //passed to qsort

typedef int (*TBookFilterCallbackFuncPtr)(TBook,void*params); //verfies book meets criteria for filtering

#endif

//**********************************************************************BOOK.CPP

#ifndef _BOOK

#define _BOOK

#define MAX_NUM_BOOKS (1000)

#define BOOK_CSV_BUFF_LENGTH (1024)

typedef

class Book

{

protected:

char * bookTitle;

char * bookAuthor;

int bookYear;

float bookPrice;

public:

Book();

Book(char * title);

Book(char * title, char * author, int yr, float price);

Book(const Book&);

Book(Book*);

~Book();

void Kill();

void SetBookTitle(char * title);

void SetBookAuthor(char * author);

void SetBookYear(int yr) { bookYear =yr; }

void SetBookPrice(float price) { bookPrice =price; }

int GetBookTitleStrLength();

int GetBookAuthorStrLength();

void GetBookTitle(char*);

void GetBookAuthor(char*);

int GetBookYear() { return(bookYear); }

float GetBookPrice() { return(bookPrice); }

void operator=(const Book&);

bool operator==(Book);

bool operator!=(Book);

void Parse(char*bookBuffCSV);

char* SerializeToCSV(char * bookBuffCSV);

void Input();

void Output(char * strTitleMsg=0, bool flagDisplayHorizontally=false);

} *TBook;

#define BOOK_SIZE (sizeof(Book))

typedef struct _TLibrary

{

int count;

TBook books;

} * TLibrary;

#define LIBRARY_SIZE (sizeof(struct _TLibrary))

#define LIBRARY_FILE ("E:\\library.dat") //PLEASE CHANGE THIS

#define LIBRARY_UPDATE_FATAL_ERROR (-4)

void Library_Init(TLibrary);

int Library_Read(TLibrary);

int Library_Write(TLibrary);

void Library_Dump(TLibrary,char*strTitleMsg=0);

int Library_InsertAddNew(TLibrary,TBook);

int Library_RemoveDelete(TLibrary,int iIndexPos);

int Library_IndexerGetAtIndex(TLibrary, int iIndexPos, TBook);

int Library_IndexerSetAtIndex(TLibrary, int iIndexPos, TBook);

typedef int (*TBookCompareCallbackFuncPtr) (TBook,TBook); //compares two books

typedef int (*_TBookCompareCallbackFuncPtr) (const void*,const void*); //passed to qsort

typedef int (*TBookFilterCallbackFuncPtr)(TBook,void*params); //verfies book meets criteria for filtering

#endif

//************************Main.cpp

using namespace std;

#include <iostream>

#ifndef _BOOK

#include "book.h"

#endif

int Menu()

{

int x;

cout <<"***************************"<<endl;

cout <<" (1) INSERT //ADD NEW "<<endl;

cout <<" (2) REMOVE//DELETE "<<endl;

cout <<" (3) DISPLAY BOOKS "<<endl;

cout <<" (0) EXIT//QUIT "<<endl;

cout <<"****************************"<<endl;

cout <<" INPUT SELECTION :>";

cin >>x;

return(x);

}

Go()

{

struct _TLibrary library;

Library_Init(&library);

Library_Read(&library);

int xMenu=-1;

while (xMenu!=0)

{

xMenu =Menu();

if (xMenu==0) { break; }

switch (xMenu)

{

case 1:

{

Book newBook;

newBook.Input();

Library_InsertAddNew(&library,&newBook);

break;

}

case 2:

{

//inputs the 1-based record #

int iIndexPos=-1;

while (iIndexPos<1 || iIndexPos>library.count)

{

cout << "record # :>";

cin >>iIndexPos;

}

int iReturn =Library_RemoveDelete(&library,--iIndexPos);

if (iReturn==LIBRARY_UPDATE_FATAL_ERROR)

{

cout <<"Fatal error occurs while updating the library.... Terminating!!!" <<endl;

return(-1);

}

break;

}

case 3:

{

Library_Dump(&library);

break;

}

}//switch

} //while

return 0;

}

int main(int argc, char** argv)

{

Go();

}

//**************************LIBRARY.DAT

5

Algorithms, Sedgewick:Robert&Wayne:Ken,1988, 54.32

Numerical Analysis,Faires:J.Douglas&Burden:Richard,1992, 65.43

The Empire Strikes Bak,Glut,1982, 9.87

Applied Business Statistics,DiRusso:Lawrence,1955, 35.42

Storm on the Sea,Thompson:Mike,2000, 65.32