static void Main(string[] args)
{
Dog Spot = new Dog();
Spot.Age = 5;
Spot.move();
Spot.makeSomeNoice();
}
static void Main(string[] args)
{
Enumerable.Range(0, 100)
.Where(x => Math.Log(x % 10 - 2) is var value && value >= 1 && value <= 2);
Animal animal = new Animal();
Mammal mammal = new Mammal();
Person person = new Person();
if (person is Person)
{
((Person)person).GetSalary();
}
//or
if (person is Person realPerson)
{
realPerson.GetSalary();
}
List <Animal> list = new List <Animal>();
list.Add(person);
list.Add(mammal);
list.Add(person);
foreach (var item in list)
{
//different answear for evry class in list (polymorphism)
item.PrintToConsole();
if (item is Animal)
{
//Console.WriteLine("I am animal! ");
//added as method
}
else if (item is Mammal)
{
//Console.WriteLine("I am mammal!");
}
else if (item is Person)
{
//Console.WriteLine("I am person!");
}
}
Animal animal3 = new Dog();
Person person3 = animal as Person;
person?.GetSalary(); //?. check if its null
//same as
if (person != null)
{
person.GetSalary();
}
//its possible
int?a = 4;
a = null;
//operator ??
Person person4 = animal as Person ?? new Person();
//if left side doesnt match do right side
}