A: 8 - ui/example_3/child_fragment/Example3ChildFragment.java

Example3ChildFragment.java

public final class Example3ChildFragment extends BaseFragment implements View.OnClickListener {

    ...
      
    @Inject
    PerChildFragmentUtil perChildFragmentUtil;

    ...

    private void onDoSomethingClicked() {
        String something = singletonUtil.doSomething();
        something += "\n" + perActivityUtil.doSomething();
        something += "\n" + perFragmentUtil.doSomething();
        something += "\n" + perChildFragmentUtil.doSomething();
        showSomething(something);
    }
    
    ...
}