Tagged articles

date-time API

3 articles · Page 1 of 1

Jun 23, 2026 · Backend Development

Why a New CTO Banned java.util.Date and Demanded Immediate Refactoring

The article explains the fundamental design flaws of java.util.Date, why a code‑scan rule forces its removal, and provides a step‑by‑step guide to replace Date and related utilities with the modern java.time API, including concrete code transformations and migration tips.

Javabackenddate-time API

0 likes · 14 min read

Why a New CTO Banned java.util.Date and Demanded Immediate Refactoring

Xiaolong Cloud Tech Team

Oct 21, 2025 · Fundamentals

Mastering LocalDateTime & DateTimeFormatter: The Golden Duo for Java Time Handling

This article explains how LocalDateTime and DateTimeFormatter work together to represent, format, parse, and manipulate date‑time values in Java, covering creation methods, component extraction, arithmetic, custom patterns, timezone conversion, common pitfalls, and practical use cases with concrete code examples.

DateTimeFormatterJavaJava 8

0 likes · 13 min read

Mastering LocalDateTime & DateTimeFormatter: The Golden Duo for Java Time Handling

Programmer DD

Aug 25, 2019 · Backend Development

Why SimpleDateFormat Fails in Multithreaded Java and How to Fix It

This article explains why Java's SimpleDateFormat is not thread‑safe, demonstrates the problem with multithreaded examples, and presents two robust solutions—using ThreadLocal or the Java 8 immutable date‑time API—to ensure correct date formatting in concurrent environments.

SimpleDateFormatdate-time APIjava-8

0 likes · 6 min read

Why SimpleDateFormat Fails in Multithreaded Java and How to Fix It