在Java 8中,我可以使用lambda或方法引用进行排序:
List<String> str = Arrays.asList("a","b","A","B");
//Lambda sort ascending
str.sort(s1, s2) -> s1.compareToIgnoreCase(s2);
//Equivalent sort ascending with method reference
str.sort(String::compareToIgnoreCase);
//Lambda sort descending
str.sort(s1, s2) -> s2.compareToIgnoreCase(s1);
//Equivalent sort descending with method reference
???????? How to do it????
有人知道吗?
您可以使用 Comparator#reversed
str.sort(((Comparator<String>)String::compareToIgnoreCase).reversed());
或两步
Comparator<String> comp = String::compareToIgnoreCase;
str.sort(comp.reversed());
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