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Reading configuration like a pro on Spring

introduction As we all know, Spring provides several ways to achieve the same goal, one of which is how to retrieve the values registered in the configuration file. If you are new to Spring, you may have encountered code that uses the @Value annotation to retrieve a value from an application.properties or application.yml file. If you use this approach, be aware that there is nothing wrong with it; however, you may introduce unnecessary complexity into your application. @Value question The main problem with using @Value is when dealing with variables that contain other values. Does this make sense? not understand? Let's look at an example: Assume you have the following configuration file:

Jan 23, 2025 pm 12:05 PM

Streams in Java: Mastering or abuse?

Elegant, concise, modern code—but six months later, nobody understands it. Is this mastery, or just overly clever engineering? Java Streams, introduced in Java 8, offer a functional approach to data manipulation, leading to compact and expressive co

Jan 23, 2025 am 08:05 AM

Meet TwinH

Meet TwinH: Your Digital Mirror Image Developed by FySelf, TwinH is a groundbreaking concept: your personalized digital twin. It's not merely a chatbot or avatar; it's an AI-powered assistant that evolves to reflect your unique communication style,

Jan 23, 2025 am 02:31 AM

Top most asked Java OOP&#s Questions in Interviews.

Understanding Java Object-Oriented Programming (OOP) This document provides a concise overview of Java's object-oriented programming (OOP) concepts. What is Object-Oriented Programming (OOP)? OOP is a programming paradigm based on the concept of &

Jan 23, 2025 am 02:18 AM

Top most asked Advanced Java Questions in Interviews.

Java livereload

introduction This article aims to explain how to speed up your development cycle, one important step is to test the code snippet and see the results immediately after saving the code. I've been doing back-end Java and front-end JavaScript development since 1999, and I'm used to using livereload to test JavaScript code, but not enough with Java. Disclaimer: I'm not a big fan of test-driven development (TDD), and the amount of testing depends on my time and mood at the time. Even if you don't write many tests, you can see how useful it can be to play around with a few snippets of code and see the results immediately. LiveTest4j utility https://github.com/hrgda

Jan 22, 2025 pm 10:23 PM

Transition Guide: From Java to JavaScript

Last year, I revisited programming, focusing on Java after a break. My goal was a more challenging language than Python. I dedicated 3-4 months to mastering Java's core concepts: its operational mechanics, object-oriented programming (OOP), memory m

Jan 22, 2025 pm 10:15 PM

Wednesday Links - Edition 2

This week's curated links cover a range of Java and Kotlin topics: JVM Internals & Performance: Understanding JVM Garbage Collector Performance (10 min): Dive into JVM garbage collection optimization. Link ?️ How JVM handles exceptions (4 mi

Jan 22, 2025 pm 10:07 PM

ommon Code Smells in Java and How to Fix Them

Code smells signal potential problems in your Java code, impacting maintainability, readability, and performance. While not always bugs, addressing them keeps your codebase clean and efficient. This article examines five common Java code smells, pro

Jan 22, 2025 pm 06:05 PM

How I am learning java

This article will share my experience on how to use my free time to learn the Java programming language. Here are some learning points: Table of contents language learning personal projects ecosystem language learning First, let me say that Java is not my first programming language, so my learning rate may be different from yours, depending on your experience. Currently, I am learning Java by participating in the Advent of Code challenge, which helps me become familiar with Java's general syntax, package import, file reading, exception handling, data types, etc. This method allows me to gain something almost every day in the learning process. Of course, I will also do some project practice to deepen my understanding. Let's take a look at this part. personal projects Just personally

Jan 22, 2025 pm 12:06 PM