private void Speak_Click(object sender, RoutedEventArgs e)
{
Random rnd = new Random();
int random = rnd.Next(1, 4);
switch (random)
{
case 1:
Pig pig = new Pig();
string t1 = pig.Speak(sender, e);
this.Output.Text += t1 + "\n";
break;
case 2:
Cat cat = new Cat();
string t2 = cat.Speak(sender, e);
this.Output.Text += t2 + "\n";
break;
case 3:
Dog dog = new Dog();
string t3 = dog.Speak(sender, e);
this.Output.Text += t3 + "\n";
break;
}
}
static void Main(string[] args)
{
Animal animal = new Animal();
animal.Name = "Animal";
animal.Speak();
Dog dog = new Dog();
dog.Name = "Spike";
animal = dog;
dog.Speak();
Cat cat = new Cat();
cat.Name = "Tom";
animal = cat;
cat.Speak();
Console.ReadKey();
}