Count checked checkboxes in recyclerView

I have a list of checkboxes in recyclerView and in that textView is also there.

➡ I want that when I'll check the checkboxes than each check boxes should count and should save. Again when I'll check the checkboxes then it should update that count. And the count should be individually for each checkboxes in a list ... I hope i explained well.

Should i post codes also???