static void Main()
{
Kitten kitty = new Kitten("Pufi", 1);
Tomcat tomas = new Tomcat("Marko", 2);
Dog sharo = new Dog("Kir4o", 3, SexEnum.male);
Frog squeek = new Frog("Kimi", 1, SexEnum.female);
kitty.MakeSomeNoise();
tomas.MakeSomeNoise();
sharo.MakeSomeNoise();
squeek.MakeSomeNoise();
Console.WriteLine(tomas.Gender);
Console.WriteLine(kitty.Gender);
Animal[] animals =
{
new Kitten("Koti", 2),
new Tomcat("Rocky", 4),
new Dog("Alex", 5, SexEnum.female),
new Frog("Siti", 2, SexEnum.female),
new Kitten("Kara", 6),
new Tomcat("Suzana", 2),
new Dog("Porsche", 7, SexEnum.female),
new Frog("Kara", 10, SexEnum.female),
new Kitten("Tonchi", 8),
new Tomcat("Jony", 8),
new Dog("Elma", 9, SexEnum.female),
new Frog("Liki", 5, SexEnum.female),
};
var ordered = animals.GroupBy(x => x.GetType());
Console.WriteLine();
foreach (var animal in ordered)
{
Console.WriteLine("Average age of {0} is {1:F2}.", animal.Key.Name, animal.Average(x => x.Age));
}
}