摘要: public static void main(String[] args) { List alpha = Arrays.asList("a","b","c"); List collect = alpha.stream().map(String::toUpperCase).collect(Collectors.toList()); ... 阅读全文
posted @ 2018-10-16 10:40 lyon♪♫ 阅读(226) 评论(0) 推荐(0) 编辑