Hutool 3.9 — ((free))

// 3. CollUtil: safe operations on collections List<String> list = CollUtil.newArrayList("a", "b", "c"); Console.log("Join result: {}", CollUtil.join(list, "-"));

public class Hutool39FeatureDemo {

public static void main(String[] args) { // 1. DateUtil: parse and format dates String dateStr = "2024-03-09"; Date date = DateUtil.parse(dateStr); Console.log("Parsed date: {}", date); Console.log("Formatted: {}", DateUtil.formatDate(date)); hutool 3.9