i have created the instance of class using

object obj=((Class)(class.forname("Nameof class")).newinstance();

i have more than 300 JFrame windows in my application , so i
dont want to use my frame names to create the instance.
in my case ..
1. how can i create instance of a frame that has one or more
than one argument ,( using above object creation we can create the
object of a class without arguments)
2. how can i invoke the methods in my frames (without casting
(using) frame names , declared methods and frame properties like
frame.front()..
3. how can i get the instance of windows who are opened and not
closed.( since i didn't declare those variable as a global)