Date Class Constructor – assigns fields to appropriate formal parameter – using the setters so error checking will occur. The constructor with no formal parameters should have no statements in the body of the function. Accessors – return the appropriate fields Setters setMonth – assigns the field to the formal parameter. Error checks the formal parameter to make sure it is a valid month number. If it isn’t a valid month, it sets the month to 1. setDay – assigns the field to the formal parameter. Error checks to make sure the day being passed in is a valid day for the month the object has (ex: January can only be 1-31). You do NOT have to check for leap year – just make sure February is 1-29. If the day is invalid, it sets the day to be 1 setYear – assigns the field to the formal parameter. Error checks the formal parameter to make sure it is not negative. If it is it sets the year to be 1900. toString – creates a string in the format M/D/Y and returns it. The following allows you to concatenate a string with an integer. Use this information to create and return the string in the format M/D/Y. string ans = to_string(month) + "/"; Date -day: int -month: int -year: int +Date() +Date(month:int, day:int, year:int) +getMonth(): int +getDay(): int +getYear():int +setMonth(month:int):void +setDay(day:int) :void +setYear(year:int) :void +toString():string

Check the explanation

Explanation:

#include <iostream>

#include <fstream>

#include <string>

#include <iomanip>

#include "Date.h"

#include "Person.h"

using namespace std;

const int MAXSIZE = 50;

// Prototypes go here

int loadArray(string fileName, Person students[]);

void sortByName(Person students[], int numE);

void printStudentReport(Person students[], int numE);

int main()

{

Person students[MAXSIZE];

int numE;

string fileName;

cout << "Enter the file name: ";

cin >> fileName;

numE = loadArray(fileName, students);

cout << endl;

cout << "Before Sort: " << endl;

printStudentReport(students, numE);

sortByName(students, numE);

cout << endl;

cout << "After Sort: " << endl;

printStudentReport(students, numE);

return 0;

}

int loadArray(string fileName, Person students[]){

ifstream in;

in.open(fileName.c_str());

if(in.fail())

return -1;

int n=0;

string fname, lname;

int month, day, year;

while(!in.eof()){

in>>fname>>lname>>month>>day>>year;

students[n] = Person(fname, lname, Date(month, day, year));

n++;

}

return n;

}

void sortByName(Person students[], int numE){

for(int i=0; i<numE; i++){

for(int j=i+1; j<numE; j++){

if(students[i].getLastName()>students[j].getLastName()){

Person temp = students[i];

students[i] = students[j];

students[j] = temp;

}

}

}

}

void printStudentReport(Person students[], int numE){

for(int i=0; i<numE; i++){

cout<<students[i].getLastName()<<", "<<students[i].getFirstName()<<"\t\t"<<students[i].getDateofBirth().toString()<<endl;

}

}

Person.h

#include<iostream>

#include<string>

using namespace std;

#include "Date.h"

#ifndef PERSON_H

#define PERSON_H

class Person{

private:

string firstName;

string lastName;

public:

Date dateOfBirth;

Person();

Person(string firstName, string lastName, Date dob);

string getFirstName();

string getLastName();

Date getDateofBirth();

void setFirstName(string fname);

void setLastName(string lname);

void setDateOfBirth(Date dob);

void setDateOfBirth(int month, int day, int year);

};

#endif

Person.cpp

#include "Person.h"

Person::Person(){

firstName = "";

lastName = "";

}

Person::Person(string firstName, string lastName, Date dob){

this->firstName = firstName;

this->lastName = lastName;

setDateOfBirth(dob.getMonth(), dob.getDay(), dob.getYear());

}

string Person::getFirstName(){

return firstName;

}

string Person::getLastName(){

return lastName;

}

Date Person::getDateofBirth(){

return dateOfBirth;

}

void Person::setFirstName(string fname){

firstName = fname;

}

void Person::setLastName(string lname){

lastName = lname;

}

void Person::setDateOfBirth(Date dob){

setDateOfBirth(dob.getMonth(), dob.getDay(), dob.getYear());

}

void Person::setDateOfBirth(int month, int day, int year){

dateOfBirth.setMonth(month);

dateOfBirth.setDay(day);

dateOfBirth.setYear(year);

}

Date.h

#include<iostream>

#include<string>

using namespace std;

#ifndef DATE_H

#define DATE_H

class Date{

private:

int day;

int month;

int year;

public:

Date();

Date(int month, int day, int year);

int getMonth();

int getDay();

int getYear();

void setMonth(int month);

void setDay(int day);

void setYear(int year);

string toString();

};

#endif

Date.cpp

#include "Date.h"

Date::Date(){

month = 1;

day = 1;

year = 1900;

}

Date::Date(int month, int day, int year){

this->month = month;

this->day = day;

this->year = year;

}

int Date::getMonth(){

return month;

}

int Date::getDay(){

return day;

}

int Date::getYear(){

return year;

}

void Date::setMonth(int month){

this->month = month;

}

void Date::setDay(int day){

this->day = day;

}

void Date::setYear(int year){

this->year = year;

}

string Date::toString(){

string ans = to_string(month)+"/";

ans += to_string(day)+"/";

ans += to_string(year);

return ans;

}

Kindly check the code output below.

answeruse the nslookup utility;