static void Main(string[] args)
{
#region upcasting,downcasting,polymorfism
//Animal shark = new Shark();
//object eagle = new Eagle();
//object a = 5;
////Eagle eagle2 = eagle as Eagle;
//if(a is Eagle)
//{
// Eagle eagle2 = (Eagle)a;
//}
//else
//{
// Console.WriteLine("Eagle tipinden deyil");
//}
#endregion
//Kelvin kelvin = new Kelvin();
//kelvin.Degree = 30;
//Dollar usd = new Dollar { Usd = 30 };
//Manat azn = (Manat)usd;
//Console.WriteLine(azn.Azn);
Manat azn = new Manat {
Azn = 20
};
Manat azn1 = new Manat {
Azn = 30
};
Console.WriteLine(azn1 == azn);
}
static void Main(string[] args)
{
#region Upcasting,boxing,implicit
//Shark shark = new Shark();
//Bird bird = new Eagle();
//Eagle eagle = new Eagle();
//Fork fork = new Fork();
//object o1 = eagle;
//object a = 5;
//object[] arr = { shark, a1, eagle, o1, a };
//Print(eagle);
//Print(shark);
//Print(fork);
#endregion
#region Downcasting,unboxing,explicit
//Animal a1 = new Shark();
//Animal a2 = new Eagle();
//object[] arr = { 1, "adasf", a1, true, a2 };
//foreach (var item in arr)
//{
// if (item is Shark shark)
// {
// shark.VTest();
// }
//}
//bool isShark = a2 is Shark;
//Console.WriteLine(isShark);
//if(a1 is Shark)
//{
// Shark shark = (Shark)a1;
//}
//if(a1 is Shark shark)
//{
// Console.WriteLine(shark);
//}
//Shark isShark = a1 as Shark;
//if (isShark != null)
//{
// Console.WriteLine(isShark);
//}
#endregion
#region Casting buildintypes
//int a = 2100000000;
//long l = a;
//Console.WriteLine(l);
//long l = 3000000000;
//int i = (int)l;
//Console.WriteLine(i);
//double d = 3.2132;
//int i = (int)d;
//Console.WriteLine(i);
#endregion
#region Implicit,Explicit operators
Manat manat = new Manat(340);
Dollar dollar = (Dollar)manat;
Console.WriteLine(dollar.Usd);
#endregion
}
static void Main(string[] args)
{
#region Custom type operators
//Person p1 = new Person(){ Name="Memmed",Surname="Necefov",Age=29};
//Person p2 = new Person();
//p2.Name = "Elman";
//p2.Surname = "Elibeyov";
//p2.Age = 18;
//Test t = new Test { Name="Kamran",Surname="Jabiyev",Age=29};
//Test t1 = new Test { Name = "ibrahim", Surname = "Nezerov", Age = 29 };
//Console.WriteLine("x"=="y");
#endregion
#region upcasting,downcasting
//Eagle eagle = new Eagle();
//int x = 5;
//upcasting
//object shark = new Shark();
//Animal e1 = eagle;
//object y = x;
//object a = eagle;
//downcasting
//Bird b1 = new Duck();
//Shark shark = new Shark();
//object[] animals = { eagle, b1, shark,x};
//foreach(var animal in animals)
//{
// if (animal is Eagle)
// {
// Console.WriteLine("Qartaldir");
// }
// else
// {
// Console.WriteLine("Her qush qartal deyil");
// }
//}
//Eagle e1 = (Eagle)b1;
//downcasting security way-1
//if((b1 as Eagle) != null)
//{
// Eagle e1 = (Eagle)b1;
//}
//else
//{
// Console.WriteLine("Her qush qartal deyil");
//}
//downcasting security way-2
//if (b1 is Eagle)
//{
// Eagle e1 = (Eagle)b1;
//}
//else
//{
// Console.WriteLine("Her qush qartal deyil");
//}
#endregion
Dollar usd = new Dollar()
{
Usd = 100
};
Manat azn = (Manat)usd;
Console.WriteLine(azn.Azn);
}