public void CompraCapo(string nomeCapo, int razzaCapo, DateTime nascitaCapo)
{
Animale.razze razza = (Animale.razze) razzaCapo;
Animale capo = new Animale(nomeCapo, razza, nascitaCapo);
Animali.Add(capo);
}
public void CompraCapo(Animale a)
{
Animali.Add(a);
}
static void Main(string[] args)
{
var customer = new Customer {
Id = 1
}; // this is the right way instead of using multiple ctors
customer.Orders.Add("fruit");
Console.WriteLine(customer.Orders.Count);
var res2 = customer.Add(new int[] { 1, 2, 5 });
var res = customer.Add(2, 4, 6);
var a = 1;
// this is not a right way at all and are here for an example if you'll ancounter then in other ppl code
customer.myMethod(ref a);
//Console.WriteLine(a); // 3
customer.myMethodB(out a);
//Console.WriteLine(a); // 1
// end
int number;
var result = int.TryParse("abc", out number);
if (result)
{
Console.WriteLine("parse success" + number);
}
//private variables - accessible only from inside the class
var person = new Person(new DateTime(2018, 2, 4));
person.SetPhone("1234");
Console.WriteLine(person.GetPhone());
person.Name = "Bob";
Console.WriteLine(person.Name);
Console.WriteLine(person.Age);
//person.Birthdate = new DateTime(1998, 23, 2); //can't set this
//protected - accessible only from the class and it's derived classes
//internal -reffers to class - accessible only from the same assembly (class library)
//protected internal - combined both
var animal = new Animale(); // from the Amazon library
var name = animal.GetName();
//indexers
var cookie = new HttpCookie();
cookie["name"] = "Roei";
Console.WriteLine(cookie["name"]);
//UpCasting
var text = new Text();
Shape shape = text;
// text and shape are both pointing to the same object in memory.
//but shape has a more limited view.
text.Width = 200;
shape.Width = 100;
Console.WriteLine(text.Width); // 100
StreamReader reader = new StreamReader(new MemoryStream()); //have method to read/wtite to/from a file
var list = new ArrayList();
list.Add(1);
list.Add("string");
list.Add(new Text());
// all will converted (Upcasted) to the Object class
// a better way though is to use a generic list
//DownCasting
Shape shapeD = new Text(); // object of type shape with a limited view
Text textD = (Text)shape; // now we have access to all properties.
//if youre not sure about the runtime type of an object:
textD = shape as Text;
if (textD != null)
{
// do somthing
}
//or
if (shapeD is Text)
{
textD = (Text)shape;
}
//those boxing and unbozing have perfromence panelty
//boxing - the process of converting a value type to an object refference
int num = 10;
Object obj = num;
//unboxing - the reverse process.
Object obj2 = 10;
int num2 = (int)obj2;
}
