Java Architecture Diary

Sep 27, 2021 · Backend Development

Explore Java 17’s New Time Formatting, Stream toList, mapMulti, and HexFormat

This article walks through Java 17’s lesser‑known enhancements—including the “B” pattern for time‑of‑day formatting, the concise Stream.toList() method, the versatile mapMulti() operation with practical examples, and the new HexFormat utility for hex conversions—while highlighting related bug fixes and usage tips.