static void Main(string[] args)
{
Dog dog = new Dog("Sharo", 6, Gender.Male);
Console.WriteLine(dog.ToString());
Kitten kit = new Kitten("Pise", 1);
Console.WriteLine(kit.ToString());
Console.WriteLine();
Animal[] animals = new Animal[]
{
new Dog("Bendji", 3, Gender.Male),
new Tomcat("Tom", 8),
new Frog("Jaburana", 2, Gender.Female),
new Dog("Ulichna Prevazhodna", 7, Gender.Female),
new Dog("Lassy", 12, Gender.Female),
new Kitten("Pisence", 1),
new Kitten("Malko kote", 2),
new Tomcat("Kotak", 7)
};
var animalAgeAverage = from animal in animals
group animal by new { GroupName = animal.GetType().Name } into gr
select new
{
GroupName = gr.Key.GroupName,
AverageAge = gr.Average(animal => animal.Age)
};
foreach (var animal in animalAgeAverage)
{
Console.WriteLine(String.Format("Group: {0}; Age Average: {1:0.00}", animal.GroupName, animal.AverageAge));
}
}
