Given this program, is it possible to: 1. Printing out information from customer

Question

Given this program, is it possible to:
1. Printing out information from customer & rooms USING A SEPARATE CLASS?
2. AND WITH THE SAME CLASS FROM #1, READ information FROM FILE TO CUSTOMER CLASS AND ROOM CLASS?

/* C++ Program that reads data about Customer Room Information */

#include <iostream>
#include <fstream>
#include <string>

using namespace std;

//Room class definition
class Room
{
    //Private instance variables
    private:
        string roomName;
        double length;
        double width;
        double height;

    public:
        //Default Constructor
        Room()
        {
            roomName = "";
            length = 0;
            width = 0;
            height = 0;
        }

        //Parameter Constructor
        Room(string rName, double len, double wid, double hei)
        {
            roomName = rName;
            length = len;
            width = wid;
            height = hei;
        }

        //Function that returns area
        double getArea()
        {
            //Area = 2h(l+w)
            return ( (2 * height) * (length + width) );
        }

        //Function that returns room information
        void printRoomInfo()
        {
            cout << " Room Name: " << roomName << " Length: " << length << " Width: " << width<< " Height: " << height << " ";
        }

        //Function that prints room information to file
        void printRoomInfoToFile(fstream &fout)
        {
            fout << " Room Name: " << roomName << " Length: " << length << " Width: " << width<< " Height: " << height << " ";
        }
};

//Class definition
class Customer
{
    //Private instance variables
    private:
        string customerName;
        //Four rooms
        Room *rooms;
        //Number of rooms
        int noOfRooms;

    public:
        //Default Constructor
        Customer()
        {
            customerName = "";
        }

        //Parameter Constructor
        Customer(string cName, Room roomsArr[], int noRooms)
        {
            int i;
            customerName = cName;

            //Assigning number of rooms
            noOfRooms = noRooms;

            //Allocating space
            rooms = new Room[noOfRooms];

            //Iterating over rooms
            for(i=0; i<noOfRooms; i++)
            {
                //Copying objects
                rooms[i] = roomsArr[i];
            }
        }

        //Function that prints details of Customer to Console
        void print()
        {
            int i;
            double totalArea = 0;

            //Printing customer name
            cout << " Customer Name: " << customerName << " ";

            cout << " Total number of rooms: " << noOfRooms<< " ";

            //Iterating over rooms
            for(i=0; i<noOfRooms; i++)
            {
                //Printing room info
                rooms[i].printRoomInfo();

                //Calculating area
                totalArea += rooms[i].getArea();
            }

            //Printing total area
            cout << " Total area of all rooms: " << totalArea<< " ";
        }

        //Function that prints details of Customer to file
        void printToFile(fstream& fout)
        {
            int i;
            double totalArea = 0;

            //Printing customer name
            fout << " Customer Name: " << customerName << " ";

            fout << " Total number of rooms: " << noOfRooms<< " ";

            //Iterating over rooms
            for(i=0; i<noOfRooms; i++)
            {
                //Printing room info
                rooms[i].printRoomInfoToFile(fout);

                //Calculating area
                totalArea += rooms[i].getArea();
            }

            //Printing total area
            fout << " Total area of all rooms: " << totalArea<< " ";
        }
};

//Main function
int main()
{
    string customerName;
    string roomName;
    double length;
    double width;
    double height;
    int roomCnt;

    int i, j;

    //Opening file for writing
    fstream fout("customers.txt", ios::out);

    //Array of customers
    Customer customers[5];

    //Iterating over each index of array
    for(i=0; i<5; i++)
    {
        //Reading customer data
        cout << " Enter Customer Name: " ;
        cin >> customerName;

        //Reading number of rooms
        cout << " Enter number of rooms: ";
        cin >> roomCnt;

        //Room Array
        Room *rooms;

        //Allocating space
        rooms = new Room[roomCnt];

        //Reading room information
        for(j=0; j<roomCnt; j++)
        {
            cout << " Room #" << (j+1) << " <Room Name> <Length> <Width> <Height>: ";
            cin >> roomName >> length >> width >> height;

            //Creating room object
            Room roomObj(roomName, length, width, height);

            //Storing room object into array
            rooms[j] = roomObj;
        }

        //Storing in array
        Customer obj(customerName, rooms, roomCnt);

        //Storing customers
        customers[i] = obj;
    }

    //Iterating over each customer
    for(i=0; i<5; i++)
    {
        //Printing customer data to file
        fout << " Customer " << (i+1) << " Info: ";
        customers[i].printToFile(fout);

        fout << " ";
    }

    cout << " Results have been written to file customers.txt... ";

    //Closing file
    fout.close();

    return 0;
}

Using as reference for study.
Thanks!

Explanation / Answer

1. Yes it is possible to print information from Customer and room class to console or the file, options are:

a. Use printInformation function using the object of Customer or room class respectively

b. Add accessors for each data field and then write data to file, again using object of the class

2. Yes in a third class you can read from a file and create object of the Customer or Room class using constructors.

File format can be such that the attributes of the class can be identified using some delimiter and then using getline function read the data and put it in a variable, pass all the attributes to the constructor and create an object of the required class

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