How to put class dynamically in <>

I know there are various capabilities in Java with reflection. For example:

Class<?> clazz = Class.forName("java.util.Date");
Object ins = clazz.newInstance();

I wonder if I could pass class dynamicaly in some method declaration in <> tags (or there is other way to do it if it must be fixed). I would like to change that class declaration dynamicaly; because I would like to write generic method for all types of classes.

In there, I have this:

List<Country>

Can I write it something diffrent with reflection? For example can it be somehow be achieved to pass class as parameter (or how else should be this done):

List<ins>

? I would appreciate examples.