Accessing methods in a subclass

Question

Hi guys,
I am trying to access a method in a subclass from the main class, the superclass is abstract and contain some abstract methods but the one I am accessing is not abstract( and I don't want it to be) and not inherited as well, I am getting error in my main class when trying to access the method the error says that this methods is not the same type as the superclass class. I will explain this in example
abstract class AA{
class BB extends AA
myMethod(){
return myValue;
main class
A = new AA;
x =A.myMethod(); {I get the error here}
I know there is a way to work this out any ideas are appreciated.
thanks.

Answer 1

aef_in_09 wrote:
thanks for the replay,
I think I should explain this in more details so you can get the whole picture.
I have an abstract class AA which has 3 subclasses say (BB, CC, and DD), I've created 3 objects of types (BB, CC and DD) and I put them all in a vector of type AA (the superclass), the vector is declared in the main class, and I've added data to the vector, and I am trying to access a method in one of theses classes like :
AList.elementAt(i).SetDate(MyDate);
where AList is the vector list of type AA defined in main class like:
private Vector<AA> AList = new Vector<AA>();
and SetDate() method is in class BBIn general, you should not do that. If you have a List (not a Vector--that's only used for legacy code) of AA, then you should only call AA's methods. If you're treating the BBs, CCs, and DDs as different types then they should generally not be in the same list.