Optional编程实例
摘要:
@Test public void optionalTest() throws NoSuchMethodException { String firstValue = null; Optional<String> key = Optional.ofNullable(firstValue); Stri 阅读全文
posted @ 2021-04-06 09:54 MaXianZhe 阅读(51) 评论(0) 推荐(0) 编辑