May 3 · 24 min read · TLDR: Java 14–17 ran a deliberate four-release preview-to-stable conveyor belt. Records replaced 50-line POJOs with one line. Text blocks ended escape-sequence chaos in multi-line strings. Sealed classes turned "please only subclass these types" comm...
Join discussionNov 4, 2025 · 5 min read · There are two kinds of developers: those who fear regex, and those who use it like a superpower. The funny part? It’s the same tool — the difference is perspective.Most people think of regex as the thing you use to validate emails, phone numbers, or ...
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Oct 16, 2025 · 3 min read · Having the following structure of a Hash that includes an Array of Hashes, for example, and you want the email of a moderator: system = { users: [ { username: 'alice', role: 'admin', email: 'alice@example.com' }, { username: 'bob', role: 'u...
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Aug 23, 2025 · 6 min read · Sealed classes are one of the biggest “modern Java” features that came after Java 8, finalized in Java 17 (LTS). They give you more control over inheritance and make class hierarchies safer and easier to reason about. 1. The problem they solve In Ja...
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Aug 16, 2025 · 5 min read · @Credit - Daniel Ciocîrlan, Kannupriya Kalra, Adrien Piquerez, Scala Center Before diving into advanced functional programming and Scala 3’s new features, every developer needs a solid foundation. The Scala 2 Essentials course by Daniel Ciocîrlan (R...
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Jul 24, 2025 · 7 min read · Pattern matching is a major feature in software development. While pattern matching applies in several locations, its current usage is limited to switch case blocks. I want to compare the power of pattern matching across a couple of programming langu...
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Jul 7, 2025 · 4 min read · Data validation is crucial in any application, but most validation libraries come with heavy dependencies and complex APIs. What if you could have powerful validation without the bloat? Meet Snap Validate - a lightweight, lightning-fast validation li...
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May 25, 2025 · 5 min read · Have you ever stared at a crossword clue that just wouldn't budge—five letters, starts with “S”, ends with “E”, and absolutely no context to fill the blanks? If you're Danish, or solving puzzles in Danish, chances are you've stumbled upon Krydsordfin...
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Apr 7, 2025 · 4 min read · Sealing a class or interface restricts the list of subclasses or implementations to a predefined set. For example, consider defining a Shape and restricting subclasses to be only triangles and squares. public class SealedClasses { sealed class Sh...
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Mar 29, 2025 · 2 min read · What is URLPattern? URLPattern is a standard published by the WHATWG (Web Hypertext Application Technology Working Group) which provides a pattern-matching system for URLs. This specification is available at urlpattern.spec.whatwg.org. URLPattern is ...
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