listItems.addListener(new ListChangeListener<Item>() {
    @Override
    public void onChanged(
        javafx.collections.ListChangeListener.Change<? extends Item> c) {
        // TODO Auto-generated method stub
    }
});

这是我试过的：@H_502_5@

listItems.addListener(c->{});

但日食说：@H_502_5@

The method addListener(ListChangeListener) is ambiguous for the
type ObservableList.@H_502_5@

列表被声明为：@H_502_5@

ObservableList<Item> listItems = FXCollections.observableArrayList();