it shall store the information back Irom the vectors lists to the text files. I. A user guild that explains all menu items and how to use them . Snapshots of running all menu items 3. Documented code including classes and main. Required classes Your code will contain the following classes, additional classes can be added if justified: class Borrower public private: ID and name,.. class BorrowerListlor readership public: private vector or list of Borrower.... class Book public: private: ISBN, publisher and title,.. class BookListor catalog public: private: vector or list of Book... class Loan public: private: SBN, ID.. class loanList Wor circulationDesk public: private: vector or list of Loan,... Interface:
class BookListtWor catalog public: private: vector or list of Book... class Loan f public private: ISBN, ID, class loanListWor circulationDesk public private: vector or list of Loan.. Interface: The application program should have a has the following suggested options: menu-driven interface that 1. Register a new borrower 2. Add a new book to the catalog. Delete a borrower by ID 4 Delete a book by ISBN s. List all borrowers. 6. List all books. 7. List al loans (returned and unreturned loans). this will also contain book info and borrower info, bot just IDs and ISBNs. s. Search for a given borrower (by name or ID) and display his/her info. I/if more than one user has the name then display all matches 9. Search for a given book (by title or ISBN) and display his/her info. o. Loan a book/if valid loan then set the loan flag to true . Return a book//if valid return then set the loan flag to false 12 Quit. stores all info back to the text files Notes Make sure that you comment your class functions to show their Make sure that you use proper names for your classes, member purpose and use.
10 Why Science Pearson 20 Computer science is fun Oxford press 30 Data structures Wiley 40 Programming in Python McGraw-Hill 50 Android Apps Peasron
011100 10 23 10 20 133557
Homework Answers
Hi, your C++ program does not compile due to the following problems (on a general Windows machine):
- main' must return 'int' - C++ required main function to be of type int.
- Note that system("pause"); will only work on Windows systems.
Following is the corrected code for Windows. Note that your text files will be updated AFTER you quit the program. To change that, you can call the Save() function every time you exit a menu, and then flush the data structures.
#include <iostream>
#include <vector>
#include <string>
#include <fstream>
using namespace std;
class Borrower
{
private:
string ID, name;
public:
Borrower() : ID("0"), name("no name yet") {}
void setID(string nID);
void setName(string nID);
string getID();
string getName();
};
void Borrower::setID(string nID)
{
ID = nID;
}
void Borrower::setName(string nname)
{
name = nname;
}
string Borrower::getID()
{
return ID;
}
string Borrower::getName()
{
return name;
}
class Book
{
private:
string ISBN, Publisher, title;
public:
Book() : ISBN("0"), Publisher("None"), title("None") {}
void setISBN(string nISBN);
void setTitle(string ntitle);
void setPublisher(string npublisher);
string getISBN();
string getTitle();
string getPublisher();
};
void Book::setISBN(string nISBN)
{
ISBN = nISBN;
}
void Book::setPublisher(string npublisher)
{
Publisher = npublisher;
}
void Book::setTitle(string ntitle)
{
title = ntitle;
}
string Book::getISBN()
{
return ISBN;
}
string Book::getTitle()
{
return title;
}
string Book::getPublisher()
{
return Publisher;
}
class Loan
{
private:
string ID, ISBN;
bool available;
public:
Loan() : ID("0"), ISBN("0"), available(true) {}
void setID(string nID);
void setISBN(string nISBN);
void setAvailable(string navailable);
string getID();
string getISBN();
string getAvailable();
void returnBook();
};
void Loan::setID(string nID)
{
ID = nID;
}
void Loan::setISBN(string nISBN)
{
ISBN = nISBN;
}
void Loan::setAvailable(string navailable)
{
if (navailable == "0")
available = false;
else if (navailable == "1")
available = true;
else
cout << "Invalid input!\n";
}
string Loan::getID()
{
return ID;
}
string Loan::getISBN()
{
return ISBN;
}
string Loan::getAvailable()
{
if (available == true)
return "1";
else
return "0";
}
void Loan::returnBook()
{
available = true;
}
class BorrowerList
{
private:
vector<Borrower> listofBorrowers;
fstream rFileHandler;
public:
void readBorrowerList(string fileName);
void addBorrower(Borrower b);
int searchForBorrower(string ID);
void deleteBorrowerat(int x);
void findBorrower(string find);
void listBorrowers();
void printBorrowerList(ofstream &outb);
};
void BorrowerList::readBorrowerList(string fileName)
{
ifstream in;
in.open(fileName);
if (in.fail())
{
cout << "Failed to open file!\n";
system("pause");
exit(1);
}
string ID, name;
Borrower nb;
while (in >> ID)
{
nb.setID(ID);
getline(in, name);
nb.setName(name);
listofBorrowers.push_back(nb);
}
in.close();
}
void BorrowerList::listBorrowers()
{
for (int i = 0; i < listofBorrowers.size(); i++)
cout << listofBorrowers[i].getID() << " " <<
listofBorrowers[i].getName() << endl;
}
void BorrowerList::addBorrower(Borrower b)
{
string ID, name;
cout << "Enter the borrower ID: ";
cin >> ID;
b.setID(ID);
cout << endl;
cout << "Enter the borrower name: ";
cin.ignore(1000, '\n');
getline(cin, name);
b.setName(name);
listofBorrowers.push_back(b);
}
int BorrowerList::searchForBorrower(string x)
{
for (int i = 0; i < listofBorrowers.size(); i++)
{
if (listofBorrowers[i].getID() == x)
return i;
}
return -1;
}
void BorrowerList::deleteBorrowerat(int x)
{
if (x < 0 || x >= listofBorrowers.size())
{
cout << "Index out of range!\n";
return;
}
listofBorrowers.erase(listofBorrowers.begin() + x);
}
void BorrowerList::findBorrower(string find)
{
int j = 0;
for (int i = 0; i < listofBorrowers.size(); i++)
{
if ((listofBorrowers[i].getName() == " " + find) ||
(listofBorrowers[i].getID() == find))
{
cout << listofBorrowers[i].getID() << " " <<
listofBorrowers[i].getName() << endl;
j++;
}
}
if (j == 0)
cout << "Not found\n";
}
void BorrowerList::printBorrowerList(ofstream &outbor)
{
for (int i = 0; i < listofBorrowers.size(); i++)
outbor << listofBorrowers[i].getID() << " " <<
listofBorrowers[i].getName() << endl;
}
class BookList
{
private:
vector<Book> listofBooks;
public:
void readBookList(string fileName);
void addBook(Book b);
int searchBook(string x);
void findBook(string find);
void deleteBook(int x);
void listBooks();
Book getBook(string ISBN);
void printBookList(ofstream &outb);
};
void BookList::printBookList(ofstream &outb)
{
for (int i = 0; i < listofBooks.size(); i++)
outb << listofBooks[i].getISBN() << "\n"
<< listofBooks[i].getTitle() << "\n"
<< listofBooks[i].getPublisher() << endl;
}
Book BookList::getBook(string ISBN)
{
Book none;
for (int i = 0; i < listofBooks.size(); i++)
{
if (listofBooks[i].getISBN() == ISBN)
return listofBooks[i];
}
return none;
}
void BookList::readBookList(string fileName)
{
ifstream in;
in.open(fileName);
if (in.fail())
{
cout << "Failed to open file!\n";
system("pause");
exit(1);
}
string ISBN, title, publisher;
Book tb;
while (getline(in, ISBN))
{
tb.setISBN(ISBN);
getline(in, title);
tb.setTitle(title);
getline(in, publisher);
tb.setPublisher(publisher);
listofBooks.push_back(tb);
}
in.close();
}
void BookList::findBook(string find)
{
int j = 0;
for (int i = 0; i < listofBooks.size(); i++)
{
if ((listofBooks[i].getISBN() == find) ||
(listofBooks[i].getTitle() == find))
{
cout << listofBooks[i].getISBN() << "\n"
<< listofBooks[i].getTitle() << "\n"
<< listofBooks[i].getPublisher() << endl;
j++;
}
}
if (j == 0)
cout << "Not found\n";
}
int BookList::searchBook(string x)
{
for (int i = 0; i < listofBooks.size(); i++)
{
if (listofBooks[i].getISBN() == x)
return i;
}
return -1;
}
void BookList::deleteBook(int x)
{
if ((x < 0) || (x >= listofBooks.size()))
{
cout << "Index out of range!\n";
return;
}
listofBooks.erase(listofBooks.begin() + x);
}
void BookList::addBook(Book b)
{
string ISBN, title, publisher;
cout << "Enter the book ISBN: ";
cin >> ISBN;
b.setISBN(ISBN);
cout << endl;
cout << "Enter the book title: ";
cin.ignore(1000, '\n');
getline(cin, title);
b.setTitle(title);
cout << endl;
cout << "Enter the book publisher: ";
getline(cin, publisher);
b.setPublisher(publisher);
listofBooks.push_back(b);
}
void BookList::listBooks()
{
for (int i = 0; i < listofBooks.size(); i++)
cout << listofBooks[i].getISBN() << "\n"
<< listofBooks[i].getTitle() << "\n"
<< listofBooks[i].getPublisher() << endl;
}
class LoanList
{
private:
vector<Loan> list;
fstream lFileHandler;
public:
void readLoanList(string fileName);
void addLoan(Loan b);
bool findLoan(string ISBN);
void listAllLoans();
void returnBook(Book b);
void printLoanList(ofstream &outb);
bool isAvailable(Loan n);
};
bool LoanList::isAvailable(Loan n)
{
string c = n.getAvailable();
if (c == "1")
return true;
else
return false;
}
void LoanList::printLoanList(ofstream &outl)
{
for (int i = 0; i < list.size(); i++)
outl << list[i].getID() << " " <<
list[i].getISBN() << " " << list[i].getAvailable()
<< endl;
}
bool LoanList::findLoan(string ISBN)
{
for (int i = 0; i < list.size(); i++)
{
if (list[i].getAvailable() == "1")
return true;
}
return false;
}
void LoanList::readLoanList(string fileName)
{
ifstream in;
in.open(fileName);
if (in.fail())
{
cout << "Failed to open file!\n";
exit(1);
}
string ID, ISBN, available;
Loan tl;
while (in >> ID >> ISBN >> available)
{
tl.setID(ID);
tl.setISBN(ISBN);
tl.setAvailable(available);
list.push_back(tl);
}
in.close();
}
void LoanList::listAllLoans()
{
for (int i = 0; i < list.size(); i++)
cout << list[i].getID() << " " <<
list[i].getISBN() << " " << list[i].getAvailable()
<< endl;
}
void LoanList::addLoan(Loan b)
{
for (int i = 0; i < list.size(); i++)
if (b.getAvailable() == "0")
{
cout << "Loan is invalid!\n";
system("pause");
exit(1);
}
list.push_back(b);
}
void LoanList::returnBook(Book b)
{
for (int i = 0; i < list.size(); i++)
if ((b.getISBN() == list[i].getISBN()) &&
(list[i].getAvailable() == "1"))
{
cout << "Book is already returned!\n";
system("pause");
exit(1);
}
for (int i = 0; i < list.size(); i++)
if ((b.getISBN() == list[i].getISBN()) &&
(list[i].getAvailable() == "0"))
{
list[i].setAvailable("1");
}
}
void printMenu()
{
cout << "\nChoose an option: \n";
cout << "1.\t Register a new borrower.\n";
cout << "2.\t Add a new book to the catalog.\n";
cout << "3.\t Delete a borrower by ID.\n";
cout << "4.\t Delete a book by ISBN.\n";
cout << "5.\t List all borrowers.\n";
cout << "6.\t List all books.\n";
cout << "7.\t List all loans.\n";
cout << "8.\t Search for a given borrower (by name or ID) and
display his/her info.\n";
cout << "9.\t Search for a given book (by title or ISBN) and
display its info.\n";
cout << "10.\t Loan a book. \n";
cout << "11.\t Return a book.\n";
cout << "12.\t Quit.\n";
cout << "Your option: \n";
}
void Save(string catalog, string readershiplist, string loans,
BookList &booklist, BorrowerList &Borlist, LoanList
&Llist)
{
ofstream out1, out2, out3;
out1.open(catalog);
if (out1.fail())
{
cout << "Faild to output to the file!\n";
system("pause");
exit(1);
}
booklist.printBookList(out1);
out1.close();
out2.open(readershiplist);
if (out2.fail())
{
cout << "Faild to output to the file!\n";
system("pause");
exit(1);
}
Borlist.printBorrowerList(out2);
out2.close();
out3.open(loans);
if (out3.fail())
{
cout << "Faild to output to the file!\n";
system("pause");
exit(1);
}
Llist.printLoanList(out3);
out3.close();
}
void main()
{
string cFileName = "catalog.txt";
string rFileName = "readershiplist.txt";
string lFileName = "loans.txt";
BorrowerList Borlist;
Borlist.readBorrowerList(rFileName);
BookList Booklist;
Booklist.readBookList(cFileName);
LoanList loanList;
loanList.readLoanList(lFileName);
int choice = 0;
while (choice != 12)
{
printMenu();
cin >> choice;
cout << endl;
if (choice == 1)
{
Borrower b;
Borlist.addBorrower(b);
}
else if (choice == 2)
{
Book b;
Booklist.addBook(b);
}
else if (choice == 3)
{
string ID;
cout << "Enter the ID of the borrower you want to delete:
";
cin >> ID;
int i = Borlist.searchForBorrower(ID);
if (i == -1)
cout << "No such borrower!\n";
else
Borlist.deleteBorrowerat(i);
}
else if (choice == 4)
{
string ISBN;
cout << "Enter the ISBN of the book you want to delete:
";
cin >> ISBN;
int i = Booklist.searchBook(ISBN);
if (i == -1)
cout << "No such book!\n";
else
Booklist.deleteBook(i);
}
else if (choice == 5)
{
Borlist.listBorrowers();
}
else if (choice == 6)
{
Booklist.listBooks();
}
else if (choice == 7)
{
loanList.listAllLoans();
}
else if (choice == 8)
{
string nameOrID;
cout << "Enter the ID or the name of the borrower you're
searching for: ";
cin.ignore(1000, '\n');
getline(cin, nameOrID);
Borlist.findBorrower(nameOrID);
}
else if (choice == 9)
{
string ISBNORTitle;
cout << "Enter the ISBN or the title of the book you're
searching for: ";
cin.ignore(1000, '\n');
getline(cin, ISBNORTitle);
Booklist.findBook(ISBNORTitle);
}
else if (choice == 10)
{
Loan b;
string ISBN;
cout << "Enter the ISBN of the book you want to loan:
\n";
cin >> ISBN;
int i = Booklist.searchBook(ISBN);
if (i == -1)
{
cout << "No such book!\n";
exit(1);
system("pause");
}
else
{
if (loanList.findLoan(ISBN))
{
string ID;
cout << "Enter the ID of the student you want to loan the
book to: \n";
cin >> ID;
int i = Borlist.searchForBorrower(ID);
if (i == -1)
{
cout << "There is no student with the ID you entered!
\n";
}
else
{
b.setID(ID);
b.setISBN(ISBN);
loanList.addLoan(b);
}
}
}
}
else if (choice == 11)
{
string ISBN;
BookList b;
cout << "Enter the ISBN of the book you want to return:
";
cin >> ISBN;
if (loanList.findLoan(ISBN))
{
loanList.returnBook(b.getBook(ISBN));
}
else
cout << "The ISBN you entered is either wrong or the book is
already returned!\n";
}
else if (choice == 12)
Save(cFileName, rFileName, lFileName, Booklist, Borlist,
loanList);
else
cout << "Your option should be one of the above 12
ones!\n";
}
system("pause");
}
Also note that return 0 is implicit in C++ main function, so it is not required here.
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#include <iostream>
#include <iomanip>
using namespace std;
class Person
{
private:
string name;
public:
Person()
{
name = "";
}
Person(string name)
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this->name = name;
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string getName()
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#include <fstream>
#include <cstdlib>
#include <ostream>
#include <fstream>
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using namespace std;
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Student(int ID,string firstName,string lastName)
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}
int getID() //getter method
{
return ID;
}
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#include <iostream>
#include <iomanip>
using namespace std;
class Person
{
private:
string name;
public:
Person()
{
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}
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{
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}
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{
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}
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{
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}
};
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{
private:
int pubNumber;
string title;
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#include <fstream>
#include <cstdlib>
#include <ostream>
#include <fstream>
#include <cstdlib>
#include <cstring>
using namespace std;
typedef struct{
int id;
char title[250];
int year;
char rating[6];
int totalCopies;
int rentedCopies;
}movie;
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void rentMovie(movie movies[],int count);
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Here is the code from the previous three steps:
#include <iostream>
using namespace std;
class Student
{
private:
//class variables
int ID;
string firstName,lastName;
public:
Student(int ID,string firstName,string lastName)
//constructor
{
this->ID=ID;
this->firstName=firstName;
this->lastName=lastName;
}
int getID() //getter method
{
return ID;
}
virtual string getType() = 0; //pure virtual function
virtual void printInfo() //virtual function to print basic details
of a student
{
cout << "Student type: " << getType() <<
endl;
cout << "Student ID: " << ID...
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