Implement the following class MyPhoneBook. You can add additional private member variables and functions. The class has the following private member variables: 1- names and phones: Dynamic arrays of strings. 2- phoneBookSize: An int that holds size of phonebook. The Class has the following public member functions: 1- Parametrized Constructor that takes the size of PhoneBook and allocate dynamic arrays of names and phones and a copy constructor to initialize a PhoneBook using another PhoneBook. 2- A function addEntry that adds a name and phone number at the first empty space at corresponding arrays, and returns true if entry is added, false otherwise. An entry is added if there's space in the array and if phone number if valid. It checks for the validity of the phone number by ensuring that it has 11 digits, and doesn't include any alphabets or special characters. 3- A function displayEntryAtIndex(int) that displays a name and phone number at the specified index. It returns true if the index is in range, false otherwise. 4- A function displayEntryAtIndices(int*) that receives an array of zeros and ones and has the same size of the class arrays. The function displays the name and phone number of an entry in the array only if the corresponding integer in the parameter array is one.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

object oriented programming using c++

class decleration:

class MyPhoneBook
{
string* names;
string* phones;
int phoneBookSize;

public:
MyPhoneBook(int); //Takes size
MyPhoneBook(const MyPhoneBook&); //Copy Constructor
bool addEntry(string ,string);
bool displayEntryAtIndex(int);
void displayEntryAtIndices(int*);
void displayAll();
int* findByName(string);
int* findByPhone(string);
bool updateNameAt(string, int);
bool updatePhoneAt(string, int);
~MyPhoneBook();
};

Task:
Implement the following class MyPhoneBook. You can add additional private member
variables and functions.
The class has the following private member variables:
1- names and phones: Dynamic arrays of strings.
2- phoneBookSize: An int that holds size of phonebook.
The Class has the following public member functions:
1- Parametrized Constructor that takes the size of PhoneBook and allocate dynamic arrays
of names and phones and a copy constructor to initialize a PhoneBook using another
PhoneBook.
2- A function addEntry that adds a name and phone number at the first empty space at
corresponding arrays, and returns true if entry is added, false otherwise. An entry is
added if there's space in the array and if phone number if valid. It checks for the validity
of the phone number by ensuring that it has 11 digits, and doesn't include any alphabets
or special characters.
3- A function displayEntryAtIndex(int) that displays a name and phone number at the
specified index. It returns true if the index is in range, false otherwise.
4- A function displayEntryAtIndices(int*) that receives an array of zeros and ones and has
the same size of the class arrays. The function displays the name and phone number of
an entry in the array only if the corresponding integer in the parameter array is one.

Example:
Parameter array
1
names
Ahmed Sami Adel Maher
Hana Ali
Sally Gamal
Mai Hani
phones
59384926357 29808442454 24551331111 57235667310 84659264782
Output:
Ahmed Sami
Sally Gamal
Mai Hani
59384926357
57235667310
84659264782
5- A function displayAll() that displays all entries in the phone book.
6- A function findByName(string) that search in PhoneBook either by full name or a part
of a name and returns an array of int with the same size of PhoneBook. The array is
filled with values 0 or 1. Value 0 if name is not a match and 1 otherwise.
7- A function findByPhone(string) that search in PhoneBook either by full phone number
or a part of a phone number and returns an array of int with the same size of PhoneBook,
The array is filled with values 0 or 1. Value 0 if phone number not a match and 1
otherwise.
8- A function updateNameAt(string,int) to update name in PhoneBook at specific index. It
returns a bool which is true if the parameter index is within range and name is updated.
9- A function updatePhoneAt(string.int) to update phone number in PhoneBook at specific
index. It returns a bool which is true if the parameter index is within range and phone is
updated.
10-A Destructor to deallocate dynamic arrays and leave no memory leak.

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