Java Architecture Diary

Jun 23, 2021 · Fundamentals

Why Java Needed a New Date‑Time API and How JSR‑310 Solves It

This article explains the shortcomings of the legacy java.util.Date and Calendar classes, outlines the motivations behind creating a new date‑time API, and introduces Java 8's JSR‑310 solution with its comprehensive class hierarchy, range handling, chronology support, and fluent method design.