static void Main(string[] args)
{
// create some animals from each class and print them
Dog dog = new Dog("Sharo", 3, Genders.Male);
Console.WriteLine(dog);
dog.FetchStick();
Console.WriteLine();
Frog frog = new Frog("Kermit", 33, Genders.Male);
Console.WriteLine(frog);
frog.Jump();
Console.WriteLine();
Kitten kitty = new Kitten("Kitty", 1);
Console.WriteLine(kitty);
kitty.Cry();
Console.WriteLine();
Tomcat tomcat = new Tomcat("Tom", 12);
Console.WriteLine(tomcat);
tomcat.Piss();
Console.WriteLine();
// create an array of Animals
Animal[] animals = new Animal[]
{
new Dog("Rex",3, Genders.Male),
new Frog("Kekerica", 1, Genders.Female),
new Kitten("Pisi", 1),
new Tomcat("Tom",2),
new Dog("Erik", 4, Genders.Male),
new Frog("Penka", 1, Genders.Female),
new Kitten("Jasmin", 2),
new Tomcat("Kolio",6),
new Dog("Bender",2, Genders.Male),
new Frog("Ginka", 6, Genders.Female),
new Kitten("Tedy", 1),
new Tomcat("Muncho",4),
};
// calculate the aveage age of each animal and print them
var averageAge =
from an in animals
group an by new { GroupName = an.GetType().Name } into gr
select new
{
GroupName = gr.Key.GroupName,
AvarageAge = gr.Average(an => an.Age)
};
foreach (var animal in averageAge)
{
Console.WriteLine(String.Format("Group: {0}, AvarageAge: {1:0.00}.", animal.GroupName, animal.AvarageAge));
}
}
