Homework for someone

SillyClass.cpp

// ConsoleApplication9.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <string>
#include <vector>
#include<iostream>
#include<iomanip>
#include<memory>
#include <algorithm>    // std::sort
using namespace std;

class Person 
{
public:
	Person(){};
	Person( int MemNo, string fName, string lName, string dateJoined)
	{
		SetMemNo(MemNo);
		SetFirstName(fName);
		SetLastName(lName);
		SetDateJoined(dateJoined);
	}

	void SetMemNo(int MemNo) { memno = MemNo; };
	void SetFirstName(string fName) { szFirstName = fName; };
	void SetLastName(string &lName) { szLastName = lName; };
	string GetLastName() { return szLastName; };
	void SetDateJoined(string &dateJoined) { doj = dateJoined; };
	void displayPerson();
	bool operator < (const Person& str) const
	{
		return (szLastName < str.szLastName);
	}

private:
	int memno = 0;
	string szFirstName{};
	string szLastName{};
	string doj{};

};

class People
{

public:
	int getPeople(int nMaxSize);
	void displayPeople(void);
	void AddPerson(Person &person);
	//Person* quickSort(Person arr[], int length);
	bool myfunction(Person &a, Person &b) { return a.GetLastName() < b.GetLastName(); }
	void SortPeople();


private:
	//static bool SortFunc(Person &a, Person &b) { return a.GetLastName() < b.GetLastName(); }
	vector<Person> m_People{};
	Person getPerson(void);
	int existpersons();

};


void People::SortPeople()
{
	sort(m_People.begin(), m_People.end());
}

void People::AddPerson(Person &person)
{
	m_People.push_back( person);
}

Person People::getPerson()
{
	Person person;
	string input{};
	int memNo = 0;

	cout << " \nEnter another Person\n" << "Membership Number: ";
	cin >> memNo;
	person.SetMemNo(memNo);

	cout << "Enter first name of person: ";
	cin >> input;
	person.SetFirstName(input);

	cout << "Enter your Surname ";
	cin >> input;
	person.SetLastName(input);

	cout << "Enter your date of joining: ";
	cin >> input;
	person.SetDateJoined(input);
	return person;
}

int People::existpersons() 
{
	return m_People.size();
}

int People::getPeople( int nMaxSize)
{
	int count = 0;
	while (count < nMaxSize)
	{
		string cAnswer;
		cout << "Enter another name? (Y or N): ";
		cin >> cAnswer;

		if ( toupper(cAnswer[0]) != 'Y' )
		{
			break;
		}
		m_People.push_back( getPerson());
		count++;
	}
	return count;
}

void People::displayPeople()
{

	for (auto person : m_People)
	{
		person.displayPerson();
	}
}

void Person::displayPerson()
{
	cout << setw(17) << "Membership number" << setw(10) << "Name" << setw(27) << "Date of Joining" << endl;
	cout << setw(17) << memno << setw(10) << szFirstName << " " << szLastName << setw(18) << doj << endl;
}

int main()
{
	// Prepopulate
	vector<Person> Peeps =
	{{
		Person(3323,"abc","zzz","27/07/2012"),
		Person(332,"bcd","xyz","26/07/2012"),
		Person(33332,"efg","def","29/07/2011"),
		Person(3332332,"klm","nop","28/09/2013")
	}};

	People myPeople;
	for (auto peep : Peeps)
		myPeople.AddPerson(peep);

	myPeople.getPeople(2);
	myPeople.displayPeople();
	myPeople.SortPeople();
	cout << endl << "Sorted by last name" << endl;
	myPeople.displayPeople();
    return 0;
}