public class Punkt3D extends Punkt {
    int z;

    Punkt3D() {
        this.z = 0;
    }

    Punkt3D(int x, int y, int z) {
        super(x, y);
        this.z = z;
    }

    Punkt3D(Punkt3D pkt) {
        super(pkt);
        this.z = pkt.z;
    }

    public int getZ() {
        return this.z;
    }

    public void setZ(int z) {
        this.z = z;
    }

    void wyswietlPunkt3D() {
        System.out.println("(" + this.x + ", " + this.y + ", " + this.z + ")");
    }

    public String toString() {
        return "(" + this.x + ", " + this.y + ", " + this.z + ")";
    }
}