Constructors and Inheritance

Question

Lets take an example in C#

public class Foo
{
    public Foo() { }
    public Foo(int j) { }
}

public class Bar : Foo
{

}

Now, All the pu

Answer 1

The Foo constructor can only know how to initialize a Foo object, so it makes no sense that it should also know how to initialize any potential subclass

public class Bar : Foo
{
public Bar(int i) : base(i) { }
}

The story the constructor tells is: "Hey base class please do whatever work you need to do to be in a good state so that I can go ahead and set up myself properly".