Question

C++ programming

Phone Book

Create a class that can be used for a Phone Book. The class should have attributes for the name and phone number. The constructor should accept a name and a phone number. You should have methods that allow the name to be retrieved, the phone number to be retrieved, and one to allow the phone number to be changed. Create a toString() method to allow the name and number to be printed.

Write a program that creates a vector that can contain phone numbers. The program should prompt the user for an indeterminate number of phone numbers, create a phone number object, and add the object to the vector. After each phone number that is entered the program should display the phone number object that was just created and the total number of phone numbers in the list/vector. When the user has finished entering phone numbers into their phone book, the program should display the contents of the phone list (complete list of names/numbers).

This program should be tested at least three times with differing quantities of phone numbers.

Answer 1

#include <iostream>
#include <vector>
#include <string>

using namespace std;

class PhoneBook {
private:
    string name;
    string phoneNumber;
public:
    PhoneBook(const string &name, const string &phoneNumber) : name(name), phoneNumber(phoneNumber) {}

    string getName() const {
        return name;
    }

    string getPhoneNumber() const {
        return phoneNumber;
    }

    void change(string name, string phoneNumber) {
        this->name = name;
        this->phoneNumber = phoneNumber;
    }

    string toString() {
        string result = "Name: " + name + ", Phone number: " + phoneNumber;
        return result;
    }
};

int main() {
    vector<PhoneBook> phoneBook;
    string name, number;
    int n;
    cout << "How many numbers do you want to enter: ";
    cin >> n;
    getline(cin, name);
    for(int i = 0; i < n; ++i) {
        cout << "Enter name: ";
        getline(cin, name);
        cout << "Enter phone number: ";
        getline(cin, number);
        cout << endl;
        PhoneBook p(name, number);
        phoneBook.push_back(p);
    }
    // display phone number
    for(int i = 0; i < phoneBook.size(); ++i) {
        cout << phoneBook[i].toString() << endl;
    }
    return 0;
}

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