public void ProduceerGeluid()
{
foreach (Dier dier in _dieren)
{
dier.MaakGeluid();
if (dier is Vogel)
{
Vogel gecasteVogel = dier as Vogel;
gecasteVogel.Vlieg();
}
else if (dier is Vis)
{
Vis gecasteVis = dier as Vis;
gecasteVis.Zwem();
}
else if (dier is Reptiel)
{
Reptiel gecasteKrokodil = dier as Reptiel;
gecasteKrokodil.Kruip();
}
else if (dier is Zoogdier)
{
Zoogdier gecasteZoogdier = (Zoogdier)dier;
gecasteZoogdier.Stap();
}
}
}
public void LaatAlleVogelsVliegen()
{
foreach (Dier dier in _dieren)
{
if (dier is Vogel)
{
Vogel gecasteVogel = dier as Vogel;
gecasteVogel.Vlieg();
}
}
}