String[] array = new String[] { " 2019-12-31 ", "2020 - 01-09 ", "2020- 05 - 01 ", "2022 - 02 - 01",

" 2025-01 -01" };

// 请使用map把String[]转换为LocalDate并打印:

Arrays.stream(array).map(s-> s.replaceAll("\\s*","")).map(LocalDate::parse).forEach(System.out::println);