How do I call the method Show_list() in another class when the method is declared inside main activity?

The process  list in below:

In first : initialize in MainActivityFragment

MainActivity mActivity= new MainActivity();

And then you can continue

mActivity.Show_list(); in MainActivityFragment

MainActivityFragment

The code of Mainactivityfragment 

public class MainActivityFragment extends Fragment {
    MainActivity mActivity= new MainActivity();
    public MainActivityFragment() {
    }

    @Override    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        mActivity.show_list();
        return inflater.inflate(R.layout.fragment_main, container, false);
    }

MainActivity

The code of Mainactivity

public View show_list() {
    String[] data = {"Ionut", "Eugeniu", "George", "Felix", "Fazlidin"};
    List<String> data_list = new ArrayList<>(Arrays.asList(data));
    ArrayAdapter<String> data_adapter = new ArrayAdapter<>(this, R.layout.list_item, data_list);
    ListView data_view = (ListView) this.findViewById(R.id.list_view);
    data_view.setAdapter(data_adapter);
    return data_view;
}