onbackpressed fragment pass value in android

1 FragmentTransaction ft = getActivity().getFragmentManager().beginTransaction();
2    FragmentB frgamentB = new FrgamentB();
3    fragmentB.setTargetFragment(FrgamentA.this, AppConstant.FRAGMENT_CODE);
4    ft.addToBackStack(fragment.getClass().getName());
5    ft.add(R.id.content, fragment, tag);
6    ft.commit();