Strukturni kod

#include <iostream>
#include <cmath>
using namespace std;

int 
main(void)
{
	double dStranicaA;
	cout<<"Unesite stranicu kocke->";
	cin>>dStranicaA;

	cout<<"Stranice kocke je: \n";
	cout<<"a ="<<dStranicaA<<endl;
	cout<<"Zapremina ="<<pow(dStranicaA,3)<<endl;
	cout<<"Povrsina ="<<6*pow(dStranicaA,2)<<endl;
	cout<<"Prostorna dijagonala ="<<sqrt(3*pow(dStranicaA,2))<<endl;
	cout<<"Poprecni presjek ="<<dStranicaA*sqrt(2*pow(dStranicaA,2))<<endl;

	system("PAUSE");
	return EXIT_SUCCESS;
}

#include <iostream>
#include <cmath>
using namespace std;

class CKocka
{
private:
	     double dA;
public:
	CKocka(double a=1){dA=a;}
	~CKocka(){};

	double StranicaA(void) { return dA;}

	double Zapremina(void) { return pow(dA,3);}

	double Povrsina(void) { return 6*pow(dA,2);}

	double ProstornaDijagonala(void) { return sqrt(3*pow(dA,2));}

	double PoprecniPresjek(void) { return dA*sqrt(2*pow(dA,2));}
};

int
main(void)
{
	double dStranicaA;
	cout<<"Unesite stranicu kocke->";
	cin>>dStranicaA;

	CKocka Kocka(dStranicaA);
	cout<<"Stranica kocke je:"<<endl;
	cout<<"a = "<<Kocka.StranicaA()<<endl;
	cout<<"Zapremina ="<<Kocka.Zapremina()<<endl;
	cout<<"Povrsina ="<<Kocka.Povrsina()<<endl;
	cout<<"Prostorna dijgonala ="<<Kocka.ProstornaDijagonala()<<endl;
	cout<<"Poprecni presjek ="<<Kocka.PoprecniPresjek()<<endl;

	system("PAUSE");
	return EXIT_SUCCESS;
}