gistfile1.java

public class SimpleActivity extends Activity {

    @Inject
    Api api;

    @Inject
    ApiManager apiManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        DemortarApp.getDemortarApp(this).getComponent().inject(this);

        api.itWorks();
        apiManager.useApi();

        // true, same instances
        boolean test = api == apiManager.getApi(); 
    }
}