OOP LV3 - Zadatak1

#include <iostream>

using namespace std;

// ---------------------------------------

class Prepaid {
protected:
    float mBalance;
public:
    Prepaid();
    Prepaid(float);
    void AddMoney(float);
    float GetBalance() const;
    virtual void SendSMS() = 0;
};

// ---------------------------------------

Prepaid::Prepaid() : mBalance(0) {}

Prepaid::Prepaid(float balance) : mBalance(balance) {}

void Prepaid::AddMoney(float nadoplata) {
    mBalance += nadoplata;
}

float Prepaid::GetBalance() const {
    return mBalance;
}

// ---------------------------------------

class Tele2 : public Prepaid {
private:
    float mPrice;
public:
    Tele2();
    Tele2(float, float);
    void SendSMS();
};

// ---------------------------------------

Tele2::Tele2() : mPrice(0), Prepaid() {}

Tele2::Tele2(float price, float balance) : mPrice(price), Prepaid(balance) {}

void Tele2::SendSMS() {
    mBalance -= mPrice;
    cout << "Message sent! Message price: " << mPrice << "$" <<endl;
}

// ---------------------------------------

int main() {
    Tele2 Korisnik(2.3, 50);
    Prepaid *p;

    p = &Korisnik;
    cout << "Balance: " << p->GetBalance() << "$" << endl;
    p->SendSMS();
    cout << "Balance: " << p->GetBalance() << "$" << endl;

    return 0;
}