#include <iostream>
using namespace std;
class kwadrat
{
private:
double bok;
double pole;
public:
kwadrat(double b);
void obliczpole();
~kwadrat();
};
kwadrat::kwadrat(double b)
{
bok=b;
cout<< "Utworzono kwadrat o boku: " << bok << endl;
return;
}
void kwadrat::obliczpole()
{
pole=bok*bok;
cout << "Pole kwadratu wynosi: " << pole << endl;
}
kwadrat::~kwadrat()
{
cout<< "Usunieto kwadrat";
}
int main()
{
kwadrat k(3.5);
k.obliczpole();
}
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