Inheritance explanation

[iaswnidou]

Hello

I have a question on the following console application

class A
{
public void F() { Console.WriteLine("A.F"); }
public virtual void G() { Console.WriteLine("A.G"); }
}
class B: A
{
new public void F() { Console.WriteLine("B.F"); }
public override void G() { Console.WriteLine("B.G"); }
}
class Test
{
static void Main() {
B b = new B();
A a = b;
a.F();
b.F();
a.G();
b.G();
}
}

One object is created here and that is of type B that inherits from A. The A-type variable a is assigned b's reference, so it as well points to the b object...right?
why a.F() results in "A.F" and a.G() in "B.G"?

 

[kmfna]

Because you are overriding the original function. The override keyword will take precedence in this case.

Good luck,
Kevin

- "The truth hurts, maybe not as much as jumping on a bicycle with no seat, but it hurts.

 

[xai999]

B.F doesn't override A.F. B.F hides A.F. If you cast a reference to an object from B to A, then A.F is going to called, because it doesn't "know" about hiding.

And then silence smacks right in there...
... And it is loud!