Untitled

public class Zespolone {

    private double x;
    private double y;


    public Zespolone(double real, double imag) {
        x = real;
        y = imag;
    }
    public double getX() { return x; }
    public double getY() { return y; }

    public void setX(double x) { this.x = x; }
    public void setY(double y) { this.y = y; }

    public Zespolone dodawanie(Zespolone b,double real,double imag) {
        real = this.x + b.x;
        imag = this.y + b.y;
        return new Zespolone(real, imag);
    }
    public Zespolone odejmowanie(Zespolone b,double real,double imag) {
        real = this.x - b.x;
        imag = this.y - b.y;
        return new Zespolone(real, imag);
    }

    public Zespolone mnozenie(Zespolone b,double real,double imag) {
        real = this.x * b.y - this.y * b.y;
        imag = this.x * b.y + this.y * b.y;
        return new Zespolone(real, imag);
    }

    public Zespolone dzielenie(Zespolone b) {
        return this.dzielenie(b.odwrotnosc());
    }

    public Zespolone sprzezenie() {
        return new Zespolone(x, -y);
    }

    public Zespolone odwrotnosc() {
        double waga = x*x + y*y;
        return new Zespolone(x / waga, -y / waga);
    }
    public double modul() {
            return Math.sqrt(x*x+y*y);
        }


    public String wypisz() {
        if (getX() == 0) return y + "i";
        else if (getY() == 0) return x + "i";
        else if (getX() == 0 && getY()==0) return "0";
        else if (getY() < 0 && getY()==getY()&& getX()!=0) return x + y + "i";
        else if (getY() < 0 && getY()==getY()&& getX()==0) return y + "i";
        final String s = getX() + " + " + getY() + "i";
        return s;


    }
}