public static void RunWeek3Classwork()
{
//Week 3 in class
//Deconstructor
//ClassMaterial.Week1.Week3.Square MySquare0 = new ClassMaterial.Week1.Week3.Square(11,22);
ClassMaterial.Week1.Week3.Square MySquare = new ClassMaterial.Week1.Week3.Square(3, 3); //
//var (length, height) = MySquare; //
int length = 5, height = 5;//////////, top = 100;
MySquare.Deconstruct(out length, out height); //////////, out top);
System.Console.WriteLine("MySquare.Length = " + MySquare.Length); //
(length, height) = MySquare;
System.Console.WriteLine("2nd MySquare.Length = " + MySquare.Length);
//ClassMaterial.Week1.Week3.Square MySquare2 = new ClassMaterial.Week1.Week3.Square(,);
//MySquare.Deconstruct(out length, out height);
System.Console.WriteLine(length); //
//ClassMaterial.Week1.Week3.Square MySquare3 = new ClassMaterial.Week1.Week3.Square(3,3);
ClassMaterial.Week1.Week3.Square yourSquare =
new ClassMaterial.Week1.Week3.Square {
Length = 5, Height = 5, Color = "Blue"
};
Dinosaur dino1 = new Dinosaur();
dino1.Size = 10;
TRex tRex = new TRex();
tRex.Size = 20;
Dinosaur dino2 = new TRex(); //upcasting
//Now play with private, public, protected and sealed of the
// base and child class to see
// what you can access with the dot operator
dino2.Eat();
Dinosaur dino3 = new Pterodactyl(); //upcasting
dino3.Eat();
Dinosaur dino4 = new Dinosaur();
dino4 = (TRex)tRex;
dino4.Eat();
dino4 = (Pterodactyl)dino3;
dino4.Eat();
System.Console.WriteLine("Now let's try an IS:");
Dinosaur[] dinoArray = { dino1, tRex, dino2, dino3 };
foreach (Dinosaur item in dinoArray)
{
if (item is TRex)
{
item.Eat();
}
/*
* if( item is Pterodactyl)
* {
* item.Sleep();
*
* }
*
*/
}
System.Console.WriteLine(Utility.AddTwoNumbers(10101, 1010));
System.Console.WriteLine(Utility.AddTwoNumbers(10101, 1010));
var dinoList = new List <Dinosaur>(10000);
dinoList.Add(dino1);
dinoList.Add(tRex);
dinoList.Add(dino2);
dinoList.Add(dino3);
foreach (var item in dinoList)
{
Console.WriteLine(item);
}
dinoList.ForEach(item => Console.Write(item + ","));
System.Console.WriteLine("Week3Classwork");
}
private static void Week3Dinosaurs()
{
//Dinosaur examples (week3 topics continued)
Dinosaur dino1 = new Dinosaur();
dino1.Size = 10;
dino1.Eat(); //Dinosaur Eat
TRex tRex = new TRex();
tRex.Size = 201;
tRex.Eat(); //TRex Eat
Dinosaur dino2 = new TRex(); //Upcasting (implicit)
dino2.Eat(); //TRex Eat
Dinosaur dino3 = new Pterodactyl(); //Upcasting (implicit)
dino3.Eat(); //Pterodactyl Eat
Dinosaur dino4 = new Dinosaur(); //Downcasting (explicit)
dino4 = (TRex)tRex;
dino4.Eat(); //TRex Eat
/*
* Console.WriteLine("--------------------------------");
* Console.WriteLine("..........'as' example..........");
* Console.WriteLine("--------------------------------");
* //gives -- Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object.
* //basically, trying to test if dino10 is a Pterodactyl. It isn't, so returns as null
* Dinosaur dino6 = dino10 as Pterodactyl;
* dino6.Sleep();
*/
Console.WriteLine("--------------------------------");
Console.WriteLine("...array and 'is' example.......");
Console.WriteLine("--------------------------------");
Dinosaur[] dinoArray = { dino1, tRex, dino2, dino3 };
foreach (Dinosaur item in dinoArray)
{
if (item is TRex)
{
item.Eat();
}
if (item is Pterodactyl)
{
item.Sleep();
}
}
/*
* Console.WriteLine(tRex.Size);
* Dinosaur.Raptor dino2 = new Dinosaur.Raptor();
* dino2.Skin = true;
* dino2.Eat();
* //call default constructor with object initializers (optional parameters, default values)
* Square yourSquare = new Square {Length = 5, Height =5, Color = "Blue"};
* Console.WriteLine("yourSquare Color is " + yourSquare.Color);
*/
//deconstructor pattern call
/*
* https://docs.microsoft.com/en-us/dotnet/csharp/deconstruct
* https://stackoverflow.com/questions/40906305/c-sharp-7-0-deconstructor
*/
/*
* Square mySquare = new Square(3, 3);
* var (length, height) = mySquare;
* //the following 2 lines are interchageable with the above "var" line, same result
* //int l, w;
* //mySquare.Deconstruct(out l, out w);
*
* Console.WriteLine(mySquare.Length);
* Console.WriteLine(length);
*/
}