static void Main(string[] args)
{
// Instantiate Dog class to create dog object
Dog dog = new Dog();
// Instantiate Cat class to create cat object
Cat cat = new Cat();
dog.animalSound();
cat.animalSound();
// This allows the console window to stay open for 3 seconds.
// That way we can view our results for 3 seconds before the window closes.
// This is using milliseconds.
Thread.Sleep(3000);
}
