public static void Main(string[] args)
{
SuperSubDerivedClass superSubDerivedClass = new SuperSubDerivedClass();
SubDerivedClass subDerivedClass = superSubDerivedClass;
DerivedClass derivedClass = superSubDerivedClass;
BaseClass baseClass = superSubDerivedClass;
superSubDerivedClass.DisplayName();
subDerivedClass.DisplayName();
derivedClass.DisplayName();
baseClass.DisplayName();
//Contact contact = new Contact();
//contact.Name = "Inigo Montoya";
// System.Console.WriteLine(contact.Name);
// 보호 수준으로 인해 액세스하지 못함
// contact.ObjectKey = Guid.NewGuid();
/*
* Contact contact;
* PdaItem item;
*
* contact = new Contact();
* item = contact;
*
* item.Name = "Inigo Montoya";
*
* Console.WriteLine($"{contact.FirstName} {contact.LastName}");
*/
}
public static void Test()
{
SuperSubDerivedClass super = new SuperSubDerivedClass();
SubDerivedClass sub = super;
DerivedClass derived = super;
BaseClass basec = super;
super.DisplayName();
sub.DisplayName();
derived.DisplayName();
basec.DisplayName();
}
public static void ChapterMain()
{
SuperSubDerivedClass superSubDerivedClass
= new SuperSubDerivedClass();
SubDerivedClass subDerivedClass = superSubDerivedClass;
DerivedClass derivedClass = superSubDerivedClass;
BaseClass baseClass = superSubDerivedClass;
superSubDerivedClass.DisplayName();
subDerivedClass.DisplayName();
derivedClass.DisplayName();
baseClass.DisplayName();
}
