#include <Windows.h>
#include <math.h>
#include <iostream>

using namespace std;


class CHelloWorld {
    int nNum;
public:
    void setnum(int nNumToSet) { nNum = nNumToSet; }
    int getnum() { return nNum; }

    void increase()     { nNum++; }
    void decrease()     { nNum--; }
    void doublenum()    { nNum = nNum * 2; }
    void halfnum()      { nNum = nNum / 2; }
};

int main () {

    CHelloWorld hello1, hello2; //declaring 2 objects of CHelloWorld, each holding their own values.

    //hello1

    cout << "Hello1 Object:\n";

    hello1.setnum( 10 );

    cout << hello1.getnum() << endl;

    hello1.doublenum();

    cout << hello1.getnum() << endl;

    hello1.halfnum();

    cout << hello1.getnum() << endl;

    hello1.increase();

    cout << hello1.getnum() << endl;

    cout << "Hello2 Object:\n";

    //hello2
    hello2.setnum( 25 );

    cout << hello2.getnum() << endl;

    hello2.doublenum();

    cout << hello2.getnum() << endl;

    hello2.halfnum();

    cout << hello2.getnum() << endl;

    hello2.increase();

    cout << hello2.getnum() << endl;

    system( "pause" );
    return 0;