C#

public void Test() {
	A a=new A();
	a.print("A=new A");
	B b=new B();
	b.print("B=new B");
	C c=new C();
	c.print("C=new C");
	A ab=new B();
	ab.print("A=new B");
	A ac=new A();
	ac.print("A=new C");
}

public class A {
	public void some1() { }
	public virtual void some2() {}
	public virtual void print(string text) {
		log(text+" ==> A");
	}
}

public class B : A {
	public void some1() { }	        // WARN: use "new" if hiding was intended.
	public virtual void some2() {}	// WARN: hides inherited member; use "override" or "new"
	public new void some3() { }     // WARN: doesn't hide anything, "new" not required.
	public override void print(string text) {
		log(text+" ==> B");
	}
}

public class C : A {
	public new void print(string text) {
		log(text+" ==> C");
	}
}

A=new A ==> A
B=new B ==> B
C=new C ==> C
A=new B ==> B  <-- inheritance
A=new C ==> A  <-- no inheritance

Mycroft Holmes wrote:

I am a great believer in elegant and correct code

PIEBALDconsult wrote:

then methods would be virtual by default.

PIEBALDconsult wrote:

I am a great believer in elegant and correct code

PIEBALDconsult wrote:

If only Microsoft was; then methods would be virtual by default.

Dave Kreskowiak wrote:

kind of a timeout in this algorithm