Sort list in reverse order extracted fields in Java

Question

I got htis method:

private <T, V extends Comparable<V>> boolean isColumnSorted(List<T> gridResult, 
           Function<T, V> extractor) {
    List<T> sortedList = new ArrayList<>(gridResult);
    sortedList.sort(Comparator.comparing(extractor));
    return sortedList.equals(gridResult);
}

but i don't know to to change it if I would like to check if the list is sorted descending. Please help. Thanks.

Answer 1

使用Comparator的reversed()方法：

sortedList.sort(Comparator.comparing(extractor).reversed());