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Articles that go alongside the Java Core lessons: which Oracle Java certification exam to take in 2026 and a code style checklist to run before you submit code. To learn Java step by step, start with the free Java course, practice with practical tasks and check yourself with tests.
Java and Oracle certification
Java Calendar Class: get, add, roll, Calendar to Date
Java Calendar class explained: get(), set(), add() vs roll(), Calendar to Date conversion, months from 0, the Date year-1900 trap and moving to java.time.
Java Code Style Checklist Before Submitting Your Code
Checklist before submitting your code: formatting, packages, comments, naming, private fields, constants instead of magic numbers, toString/equals/hashCode.
Oracle Java Certification 2026: OCP Java 25, 21 and 17 Exams
Oracle Java certification in 2026: OCP Java SE 25 (1Z0-831), 21 (1Z0-830) and 17 (1Z0-829) compared — questions, time, passing score, how to prepare.
Other articles
How To Turn Your IT Skills Into A Local Computer Repair Business
Learn how IT professionals can turn their technical expertise into a profitable local computer repair business. Discover the importance of specialized skills, c
How JavaScript Developers Can Work With CRM APIs
Learn how JavaScript developers can use CRM APIs, JSON, fetch, authentication, and webhooks to connect websites with customer data workflows.
AI writing tools in 2026: what actually helps and what gets in the way
Not all AI tools solve the same problem. A practical breakdown of which tools fit which tasks in 2026 — from content generation to editing and SEO writing.
VPS for Node.js: How to Choose the Right Provider
Discover the best VPS and hosting platforms for Node.js apps with native database support. Explore affordable, developer-friendly options including Heroku
7 HR Marketing Mistakes That Hurt Your Hiring Process
A strong HR marketing strategy is essential for attracting top talent, yet many companies unknowingly sabotage their recruitment efforts with ineffective brandi