Lets take an example in C#
public class Foo
{
public Foo() { }
public Foo(int j) { }
}
public class Bar : Foo
{
}
Now, All the pu
The simple answer is that the language doesn't work that way.
The real question you are asking for though is why it doesn't work that way :-) Well it is an arbitrary choice, and it follows on from C++ and Java (and very possibly many other langauges that influenced C#).
The likely reason is that the compiler will only generate a constructor that takes no arguments and simply calls the parent is that if you want more than what the compiler makes you do it yourself. This is the best choice since odds are you do more than suply calling the parent constructor.