Question

C++

In this assignment, you will write a class that implements a contact book entry. For example, my iPhone (and pretty much any smartphone) has a contacts list app that allows you to store information about your friends, colleagues, and businesses. In later assignments, you will have to implement this type of app (as a command line program, of course.) For now, you will just have to implement the building blocks for this app, namely, the Contact class.

Your Contact class should have the following private data:

• The first name of the person

• The last name of the person

•The phone number of the person

• The street address of the person

• The city of the person

• The state of the person Of course, you may implement private helper functions if it helps your implementation.

Your class should have the following public functions:

• A constructor that initializes all the fields with information.

• A constructor that initializes only the name and phone number.

• A default constructor that initializes the data to some programmer specified values. (Namely, you are free to initialize these variables to anything you choose to be default, but it must make sense and not be totally arbitrary.) (if you want to get fancy, you can use default arguments and write all 3 of the above as only 1 constructor.) • accessor (get) functions for all of the data members.

• an update function that allows the user to change all information. (They must change all of it).

The following overloaded operators:

• an == operator that compares 2 contacts, and returns true if the last name and first name both match and false otherwise.

• a < operator that returns true if the first contact’s last name is lexicographically before the second one and false otherwise. In other words, you return true if the first contact would be listed before the second one in alphabetical order. If the last names are the same, use the first name to break ties.

•Do the same thing for != and >.

• A stream insertion (<<) operator that prints out a contact in the following form: Phone number: ,

For example my (bogus) contact info would print out:

Ari Mermelstein Phone number: (718) 111-1111 2900

Bedford Avenue Brooklyn, NY

You must also write a main program called useContact.cpp that tests each of these functions and shows me that you understand how to use the Contact class in a program.

What to submit: 1. your Contact.h file. 2. your Contact.cpp file 3. your useContact.cpp file

Answer 1

//Contact.h

#pragma once

#ifndef CONTACT_H

#define CONTACT_H

#include<iostream>

#include<string.h>

using namespace std;

class Contact

{

public:

Contact(string firstName="", string lastName="", string phoneNumber="", string streetAddress="", string city="", string state="");

string getFirstName();

string getLirstName();

string getPhoneNumber();

string getStreetAddress();

string getCity();

string getState();

bool operator==(Contact &other);

bool operator<(Contact &other);

bool operator!=(Contact &other);

bool operator>(Contact &other);

friend std::ostream& operator << (std::ostream &out, Contact &c);

private:

string m_firstName;

string m_lastName;

string m_phoneNumber;

string m_streetAddress;

string m_city;

string m_state;

};

#endif // !CONTACT_H

//Contact.cpp

#include<iostream>

#include<string>

#include "Contact.h"

using namespace std;

Contact::Contact(string firstName = "", string lastName = "", string phoneNumber = "", string streetAddress = "", string city = "", string state = "")

{

m_firstName = firstName;

m_lastName = lastName;

m_phoneNumber = phoneNumber;

m_streetAddress = streetAddress;

m_city = city;

m_state = state;

}

string Contact::getFirstName()

{

return m_firstName;

}

string Contact::getLirstName()

{

return m_lastName;

}

string Contact::getPhoneNumber()

{

return m_phoneNumber;

}

string Contact::getStreetAddress()

{

return m_streetAddress;

}

string Contact::getCity()

{

return m_city;

}

string Contact::getState()

{

return m_state;

}

bool Contact::operator==(Contact & other)

{

if (this->m_firstName == other.m_firstName && this->m_lastName == other.m_lastName)

return true;

else

return false;

}

bool Contact::operator<(Contact & other)

{

if (this->m_lastName < other.m_lastName)

return true;

else if (this->m_lastName == other.m_lastName && this->m_firstName < other.m_firstName)

return true;

else

return false;

}

bool Contact::operator!=(Contact & other)

{

if (this->m_firstName != other.m_firstName || this->m_lastName != other.m_lastName)

return true;

else

return false;

}

bool Contact::operator>(Contact & other)

{

if (this->m_lastName > other.m_lastName)

return true;

else if (this->m_lastName == other.m_lastName && this->m_firstName > other.m_firstName)

return true;

else

return false;

}

std::ostream & operator<<(std::ostream & out, Contact & c)

{

// TODO: insert return statement here

out << c.getFirstName() << " " << c.getLirstName() << " Phone Number: " << c.getPhoneNumber() << endl;

out << c.getStreetAddress() << " " << c.getCity() << ", " << c.getState() << endl;

}

//useContact.cpp

#include<iostream>

#include"Contact.h"

using namespace std;

int main()

{

Contact c("Ari", "Mermelstein", "(718) 111-1111 2900", "Bedford Avenue", "Brooklyn", "NY");

std::cout << c;

system("pause");

return 0;

}