Hello fellow programmers,

I am reading a book on C# and the author is comparing Abstract classes and Interfaces. He claims that if you have the following "abstract class:"

abstract class CloneableType
{
public abstract object Clone();
}

Then you cannot do this:

public class MiniVan : Car, CloneableType
{}

This, I understand. However he claims that because of this inability to do multiple inheritance that you should use an interface for CloneableType, like so:

public interface ICloneable
{
object Clone();
}

My question is, isn't this somewhat misleading, because you can create an abstract class which is "above" class Car with the method Clone, then have Car inherit that class and then Minivan will inherit Car with all these methods, CloneAble class -> Car class -> Minivan Class.

What do you think? Thanks.