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C++ coding
Introduction
In this lab, we will use class to design a library management
system.
In the library management system, we defined a class called Book to
store all the information of a book, including name, number of
pages, number of authors and author names. Also, since the books
are stored by a linked list, there would a
pointer next pointing to the next book.
To simplify, we use a string without space to store the names of
books and authors. For example, if a name is "Abc Def Ghi", we use
"Abc_Def_Ghi" to represent it.
Tasks
There are 5 tasks in book.cpp. Descriptions of tasks are
provided below, instructions and some examples are also provided
via comments in the skeleton codes.
Task 1: Constructor of a new book.
In this part, all the information of a book including numPages,
numAuthor, authorList, name, next will be initialized. Note that
next would be initialized as nullptr in the constructor, and its
value would be set in main.cpp after a book is constructed. Alao,
remember to allocate memory for variable name, numAuthor, and each
element in the array numAuthor.
Task 2: Destructor to delete an existing
book.
In this part, all the memory allocated previously in the
constructor should be deallocated. Note that for an array (e.g.,
numAuthor), the array as a whole and each element in the array
should be deallocated respectively.
Task 3: Search for and print out information of
book(s) with a given name.
Note that the strcmp function can be used to compare two
strings. The function printSingleBookInfo() can be used to print
out the information of a given book. Since the books are stored in
a linked list, next is a pointer to the next book. And for the last
book, next should be nullptr.
Task 4: Search for and print out information of
book(s) of a given author
Note that the strcmp function can be used to compare two
strings. The function printSingleBookInfo() can be used to print
out the information of a given book. Since the books are stored in
a linked list, next is a pointer to the next book. And for the last
book, next should be nullptr.
Task 5: Search for and delete book(s) of a
given name.
Note that the strcmp function can be used to compare two
strings. Since the books are stored in a linked list, next is a
pointer to the next book. And for the last book, next should be
nullptr.
To simplify, in the function deleteBookByName, we would start from
the second book. The case that the first book is a book to be
deleted are handled in ManagementSystem.cpp .
Given code:
#include "Book.h"
#include <iostream>
#include <cstring>
using namespace std;
/*
* Task 1: Constructor of a new book.
* In this part, all the information of a book including
numPages, numAuthor, authorList,
* name, next will be initialized.
* Note that next would be initialized as nullptr in the
constructor, and its value would
* be set in main.cpp after a book is constructed.
* Remember to allocate memory for variable name, numAuthor, and
each element in the array
* numAuthor.
*/
Book::Book(const char * name, char * const * authorList, int
numPages, int numAuthor) {
}
/*
* Task 2: Destructor to delete an existing book.
* In this part, all the memory allocated previously in the
constructor should be deallocated.
* Note that for an array (e.g., numAuthor), the array as a whole
and each element in the
* array should be deallocated respectively.
*/
Book::~Book() {
cout << "Delete the book titled
\"" << name << "\"" << endl;
}
/*
* A given function to print out the information of one single
book.
*/
void Book::printSingleBookInfo() const {
cout << name<<" : "<<
numPages <<" Pages, By ";
for (int index = 0; index <
numAuthor; ++index) {
if (index != 0)
{
cout
<< ", ";
}
cout <<
authorList[index];
}
cout << "." << endl;
}
/*
* Task 3: Search for and print out information of book(s) with a
given name.
* Note that the strcmp function can be used to compare two
strings.
* The function printSingleBookInfo() can be used to print out
the information of a given book.
* Since the books are stored in a linked list, next is a pointer
to the next book. And for
* the last book, next should be nullptr.
*/
void Book::printBookInfoByName(const char *name) const {
}
/*
* Task 4: Search for and print out information of book(s) of a
given author.
* Note that the strcmp function can be used to compare two
strings.
* The function printSingleBookInfo() can be used to print out
the information of a given book.
* Since the books are stored in a linked list, next is a pointer
to the next book. And for
* the last book, next should be nullptr.
*/
void Book::printBooksInfoByAuthor(const char *authorName) const
{
}
/*
* Print out the information of all the books.
*/
void Book::printAllBooks() const {
printSingleBookInfo();
if (next != nullptr) {
next ->
printAllBooks();
}
}
void Book::setNext(Book* book) {
next = book;
}
/*
* Task 5: Search for and delete book(s) of a given name.
* Note that the strcmp function can be used to compare two
strings.
* Since the books are stored in a linked list, next is a pointer
to the next book. And for
* the last book, next should be nullptr.
*/
void Book::deleteBookByName(const char * name) {
}
const char* Book::getName() const {
return name;
}
Book* Book::getNext() {
return next;
}