Question

Implement the Message class using a header and implementation file named Message.h and
Message.cpp respectively. In addition to the two Message class files, you must write a driver. The driver
must create a Message array that is capable of holding 100 messages (make sure that you don’t exceed
the maximum number of Messages). It then must read all Messages from a file named messages.txt
(ordered date\n sender\n recipient\n body\n), sort the Messages based on date, find a Message based on
messageID (value will be given by keyboard input), and print the first five Messages and the Message
resulting from the search. (I suggest that you use one of the sort and one of the search algorithms).

Attributes
string sender – string containing the e-mail address of the sender (e.g. [email protected]).

string recipient – string containing the e-mail address of the recipient(e.g. [email protected]).

string body – string containing the message or body of the e-mail.

string date – string containing the date (timestamp) for the message in the form yyyy/mm/dd.

int messageID – integer that stores a unique identifier for each message.

static int messageIDGen – integer used to provide a unique identifier for messageID.

messageIDGen must be initialized outside of the class definition (e.g. Place the

initialization in the implementation file) (HINT:. int Message::messageIDGen = 0).

Member Functions:
Message( )
   Default Constructor that increments the messageIDGen and assigns it’s value to messageID.
Message(string, string, string, string)
  
Constructor with initialization stings for sender, recipient, body, and date. It will also increments
   messageIDGen and assigns it’s value to messageID.
~Message( )
   Destructor
void setSender(string)
   Modifier that allows the user to set the sender string
void setRecipient(string)
   Modifier that allows the user to set the recipient string
void setBody(string)
   Modifier that allows the user to set the body of the message
void setDate(string)
   Modifier that allows the user to set the timestamp of the message
string getSender( )
   Accessor that allows the user to get the sender string
string getRecipient( )
   Accessor that allows the user to get the recipient string
string getBody( )
   Accessor that allows the user to get the body of the message
string getDate( )
   Accessor that allows the user to get the timestamp of the message
int getMessageID( )
   Accessor that allows the user to get the value of messageID
string toString( )
   Function that returns a string representation of a Message object. (You may need to alter the
   code below to match output)

messageID: 12
date: 2006/11/20
sender: [email protected]
recipient: [email protected]
body: Hope your semester is going well!
#include
string toString()
{
ostringstream result;
result << “messageID: “ << messageID << endl;
result << “date: “ << date << endl;
result << “sender: “ << sender << endl;
result << “recipient: “ << recipient << endl;
result << “body: “ << body << endl;
return result.str();
}