LVV1OOP

#include<iostream>
using namespace std;
class Zarulja{
    private:
        int Stanje;
    public:
        Zarulja():Stanje(0){}
        Zarulja(int s):Stanje(s){}
        void prekidac(){
            if(Stanje==0)Stanje=1;
            else
            Stanje=0;
        }
        void provjera()
        {
            if(Stanje==1)cout<<"svijetli"<<endl;
            else cout<<"ne svijetli"<<endl;
        }

};
int main()
{
    Zarulja Osram;
    Osram.provjera();
    Osram.prekidac();
    Osram.provjera();
    system("PAUSE");
    return 0;
}
//DRUGIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
#include<iostream>
#include<math.h>
using namespace std;
class Complex {
    friend Complex zbroji(Complex&, Complex&);
private:
    double realni;
    double imaginarni;
public:
    Complex(): realni(0.00), imaginarni(0.00) {}
    Complex(double x, double y): realni(x), imaginarni(y) {}
    void promijeniR(double x){realni=x;}
    void promijeniI(double y){imaginarni=y;}
    double Modul(){ return sqrt(pow(realni, 2) + pow(imaginarni, 2));}

};
Complex zbroji(Complex &a ,Complex &b) {
    Complex c;
    c.realni = a.realni + b.realni;
    c.imaginarni = a.imaginarni + b.imaginarni;
    return c;
}
int main()
{
    Complex c;
    Complex prvi(4.5,6.5);
    Complex drugi(2.4,2.5);
    cout << "Modul je " << prvi.Modul() << endl;
    zbroji(prvi, drugi);
    system("PAUSE");
    return 0;
}
//TRECIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
#include <iostream>
using namespace std;
class Tocka{
    float x;
    float y;
public:
    Tocka();x(0),y(0){}
    Tocka(float a,float b):x(a),y(b){}

};
class Pravac{
    Tocka T1;
    Tocka T2;
public:
    Pravac(Tocka t1,Tocka t2):T1(t1),T2(t2){}
};
int main(){
    Tocka Ta,Tb;
    Pravac p(Ta,Tb);
    return 0;
}