public static double CalculateAverageAgeOfAnimals(Animal[] animals)
{
int sumOfAge = 0;
for (int i = 0; i < animals.Length; i++)
{
sumOfAge += animals[i].Age;
}
double averageAge = (double)sumOfAge/animals.Length;
return averageAge;
}
public static double AvarageAge(Animal[] animals)
{
double totalAge = 0;
foreach (Animal animal in animals)
{
totalAge += animal.Age;
}
return (totalAge / animals.Length);
}
static void Main()
{
//Create arrays of different kinds of animals
Animal[] animals = new Animal[5];
animals[0] = new Kitten("Kitty", 1);
animals[1] = new Tomcat("Tom", 5);
animals[2] = new Frog("Froggy");
animals[3] = new Frog("granny Frog", 6, Sex.Female);
animals[4] = new Dog("Balkan", 4, Sex.Male);
//test sound
Console.WriteLine("Test sounds:");
Console.WriteLine();
foreach (var item in animals)
{
Console.WriteLine(item);
Console.WriteLine(item.ProduceSound());
}
Console.WriteLine();
//and calculate the average age of each kind of animal using a static method (you may use LINQ).
var animalsAverageAgeByType = animals.GroupBy(a => a.GetType().Name)
.Select(g => new { Kind = g.Key, AverageAge = g.Average(item => item.Age) });
Console.WriteLine("Average age of each kind of animal using a static method");
foreach (var item in animalsAverageAgeByType)
{
Console.WriteLine(item);
}
Console.WriteLine();
var animalsAverageAgeByTypeLINQ =
from a in animals
group a by a.GetType().Name into k
select new { Kind = k.Key, AverageAge = k.Average(a => a.Age) };
Console.WriteLine("Average age of each kind of animal using LINQ");
foreach (var item in animalsAverageAgeByTypeLINQ)
{
Console.WriteLine(item);
}
Console.WriteLine();
}
static void Main()
{
var animals = new Animal[]
{
new Tomcat("Tom", 7.2),
new Tomcat("Grumpy", 3.1),
new Kitten("Sarah", 3.2),
new Frog("Jef", 0.7, Gender.Male),
new Dog("Wow", 5.3, Gender.Male),
new Kitten("Miko", 2.8),
new Frog("Mary", 4.2, Gender.Female)
};
Console.WriteLine("Average age of frogs is: {0}", Animal.GetAverageAge<Frog>(animals));
Console.WriteLine("Average age of dogs is: {0}", Animal.GetAverageAge<Dog>(animals));
Console.WriteLine("Average age of cats is: {0}", Animal.GetAverageAge<Cat>(animals));
}
static void Main()
{
Animal[] animals = new Animal[]
{
new Kitten(GetRandomName(), GetRandomAge()),
new Tomcat(GetRandomName(), GetRandomAge()),
new Dog(GetRandomName(), GetRandomAge(), Gender.Male),
new Cat(GetRandomName(), GetRandomAge(), Gender.Male),
new Frog(GetRandomName(), GetRandomAge(), Gender.Female),
new Frog(GetRandomName(), GetRandomAge(), Gender.Male)
};
Console.WriteLine("Some animals:");
foreach (Animal animal in animals)
{
Console.WriteLine(animal);
}
Console.WriteLine();
var kittens = new List<Kitten>();
for (int i = 0; i < 5; i++)
{
Kitten currerntKitten
= new Kitten(GetRandomName(), GetRandomAge());
kittens.Add(currerntKitten);
}
double avrKitten = Kitten.CalculateAverageAge(kittens);
Console.WriteLine("Kitten average age: " + avrKitten);
var dogs = new List<Dog>();
for (int i = 0; i < 5; i++)
{
Dog currerntDog
= new Dog(GetRandomName(), GetRandomAge(), Gender.Male);
dogs.Add(currerntDog);
}
double avrDog = Dog.CalculateAverageAge(dogs);
Console.WriteLine("Dog average age: " + avrDog);
}
public static void PrintAverageAge(Animal[] animals)
{
float catsCount = 0f;
uint catsAge = 0;
float dogsCount = 0f;
uint dogsAge = 0;
float frogsCount = 0f;
uint frogsAge = 0;
foreach (var animal in animals)
{
if (animal.Species == Species.Cat)
{
catsCount++;
catsAge += animal.Age;
}
else if (animal.Species == Species.Dog)
{
dogsCount++;
dogsAge += animal.Age;
}
else if (animal.Species == Species.Frog)
{
frogsCount++;
frogsAge += animal.Age;
}
}
var result = new StringBuilder();
result.AppendLine(string.Format("Average age of cats: {0:F2}", catsAge / catsCount));
result.AppendLine(string.Format("Average age of dogs: {0:F2}", dogsAge / dogsCount));
result.AppendLine(string.Format("Average age of frogs: {0:F2}", frogsAge / frogsCount));
Console.WriteLine(result);
}
static void Main(string[] args)
{
Animal[] animalList = new Animal[]
{
new Cat(8, "Sheakspeer", true),
new Dog(4, "Koki", true),
new Frog(20, "Arko", true),
new Cat(68, "Silvester", true),
new Cat(34, "Garfield", true),
new Dog(5, "Ava", true),
new Kitten(1, "Smilie"),
new Tomcat(80, "Tom")
};
double result = Animal.CalculateAvarageAge(animalList, "Frog");
double result2 = Animal.CalculateAvarageAge(animalList, "Dog");
double result3 = Animal.CalculateAvarageAge(animalList, "Cat");
double result4 = Animal.CalculateAvarageAge(animalList, "Kitten");
Console.WriteLine(result);
Console.WriteLine(result2);
Console.WriteLine(result3);
Console.WriteLine(result4);
}
public static double AverageAge(Animal[] arr)
{
return arr.Average(x => x.Age);
}
public static double AverageAge(Animal[] animals)
{
return animals.Average(x => x.Age);
}
private static double CalculateAverageYears(Animal[] collection)
{
double averageAge = collection.Average(x => x.Age);
return Math.Round(averageAge, 2);
}
public static double AverageAge(Animal[] animal)
{
var age = animal.Select(x => x.Age);
double result = age.Average();
return result;
}
private static void DisplayAvarageAge(Animal[] animals)
{
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine("{0:f2}", Animal.AvarageAge(animals));
Console.ForegroundColor = ConsoleColor.White;
}
public static void CalculateAverageAgeOfKind(Animal[] animals)
{
//calculate the average age of each kind of animal
var animalGroups =
(from animal in animals
group animal by animal.GetType().Name into groups
select new
{
name = groups.Key,
average =
(from anim in groups
select anim.Age).Average()
});
foreach (var item in animalGroups)
{
Console.WriteLine(item);
}
}
