[c#] inheritance practice2
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ConsoleApplication3
{
class GrandParent
{
public string FirstName;
public string LastName = "Kim";
public virtual void Run()
{
Console.WriteLine("Parent({0} {1}) is Running", FirstName, LastName);
}
}
class Parent : GrandParent
{
public sealed override void Run()
{
Console.WriteLine("Child({0} {1}) is Running", FirstName, LastName);
}
}
class Child : Parent
{
//Parent의 Run 메서드가 Sealed 이므로 재정의할 수 없음
//sealed override 는 상속받은 자식이 더이상 override 못하도록 막는 역할을 함
//public override void Run()
//{
// Console.WriteLine("Child({0} {1}) is Running", FirstName, LastName);
//}
}
class Program
{
static void Main(string[] args)
{
GrandParent gp1 = new GrandParent();
gp1.FirstName = "Jone";
gp1.Run();
Parent p1 = new Parent();
p1.FirstName = "Jonas";
p1.Run();
Console.ReadLine();
}
}
}
| cs |
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