HELP!! I need help to redesign this project by demonstrating inheritance and vir

Question

HELP!! I need help to redesign this project by demonstrating inheritance and virtual functions.

1. Modify the program by demonstrating inheritance
2. Include virtual functions to support polymorphism

Lottery.h

**********************************************************************

#include <iostream>
using namespace std;

class Lottery
{
   public:
       void generateNumbers(int[], int);
       int findMatches(int[], int[], int);
       void print(int[], int[], int);
       int iInputValidation(float);
};

LotteryClass.cpp

*****************************************************************

#include <iostream>
#include <cstdlib>
#include <ctime>
#include "Lottery.h"

const int MAX_RANGE = 10;

void Lottery::generateNumbers(int lottery[], int size)
{
   srand(time(NULL));
   for (int i = 0; i < size; i++)
   {
       lottery[i] = 0 + rand() % MAX_RANGE;
       cout << "lottery[" << i << "] = " << lottery[i] << " " << endl;
   }
   cout << "For dubugging purpose only" << endl;
   cout << endl << endl;
}

int Lottery::findMatches(int lottery[], int user[], int size)
{
   int matches = 0;
   for (int i = 0; i < size; ++i)
   {
       if (user[i] == lottery[i])
           matches = matches + 1;
   }

   return matches;
}

void Lottery::print(int lottery[], int userInput[], int size)
{
   cout << "Users numbers: ";
   for (int i = 0; i < size; ++i)
       cout << userInput[i] << " ";

   cout << endl << "Lottery numbers: ";
   for (int i = 0; i < size; ++i)
       cout << lottery[i] << " ";

   cout << endl;
}

int Lottery::iInputValidation(float temp)
{

   while (cin.fail() || (int)temp != temp || temp < 0|| temp > 9 || getchar() != ' ')
   {
       cout << "Invalid input. Enter five numbers 0 through 9 for lottery numbers: ";
       cin.clear();
       cin.ignore(std::numeric_limits::max(), ' ');
       cin >> temp;
       cout << " "<< endl;
   }
   return (int)temp;
}

Main.cpp

*****************************************************************

#include <iostream>
#include <cstdlib>
#include <ctime>
#include "Lottery.h"

using namespace std;

int main()
{
   //create an object
   Lottery player;
   const int SIZE = 5;
   int lottery[SIZE]; // Lottery numbers
   int userInput[SIZE]; // User's numbers
   int numMatches; // Number of matches

   player.generateNumbers(lottery, SIZE);
   cout << "Welcome to the grand prize lottery game!" << endl;
   cout << "Win $5 if you have 1 match number!" <    cout << "Win $20 if you have 2 match numbers!" <    cout << "Win $100 if you have 3 match numbers!" <    cout << "Win a trip to the Paris if you have 4 match numbers!" <    cout << "Win a brand new BMW if you have all 5 match numbers!" <    cout << "Now Please enter five numbers 0 through 9 for lottery numbers" << endl;
   cout << endl;

   float temp;
   for (int i=0; i<5; ++i)
   {
   cout << "Please enter number # " << (i + 1) << " : ";
   cin >> temp;
   userInput[i] = player.iInputValidation(temp);
   }

   numMatches = player.findMatches(lottery, userInput, SIZE);
   player.print(lottery, userInput, SIZE);
   cout << endl;

   cout << "You matched " << numMatches << " numbers. ";

   if (numMatches == 1)
       cout << "Congratulations! You just won $5! "<< endl ;
   else if (numMatches == 2)
       cout << "Congratulations! You just won $20! "<< endl ;
   else if (numMatches == 3)
       cout << "Congratulations! You just won $100! "<< endl ;
   else if (numMatches == 4)
       cout << "Congratulations! You just won a trip to the Paris! "<< endl ;
   else if (numMatches == 5)
       cout << "Congratulations! You're the grand prize winner!! "
               <<"You just won a new BMW"<< endl ;
   else
       cout << "Thanks for your participation. "
               "Try again next time. Good Luck!" << endl;

   system("pause");
   return 0;
}

Explanation / Answer

For implementing the virtual functionality as well as the inheritance we can create a abstract base class, where we can declerate the methods are virtual

#include <iostream>
#include <cstdlib>
#include <ctime>
using namespace std;

class baseLottery
{
   public:
       virtual void generateNumbers(int[], int) = 0;
       virtual int findMatches(int[], int[], int);
       virtual void print(int[], int[], int);
       virtual int iInputValidation(float);
  
};

Now Lottery class will inherit this base class

#include <iostream>
using namespace std;

class Lottery:public baseLottery
{
   public:
       void generateNumbers(int[], int);
       int findMatches(int[], int[], int);
       void print(int[], int[], int);
       int iInputValidation(float);
};

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