JAVA Class in Operation Mapping

Dear Experts,

I am very new to JAVA mapping and explored lot of new things. But this is creating a loose ends of thread and

am not able to find the relations between them.

In my Java Mapping , I have a main class and this main class is calling 3 other classes. The code has been written in NWDS.

When referring the JAVA classes in Operation Mapping, I have to select 4 classes.

My queries:

1. Can I use JAVA mapping with a main class calling sub classes?

2. Does Sequence of the selected JAVA classes matters?

Regards

Rebecca..