This article explains the distinctions between OAuth, OIDC, and SAML, outlining their unique features and applications. By breaking down these standards, readers can make informed decisions about which one to use for their authentication and authorization needs. Read more →

Learn the SOLID principles of OOP: SRP, OCP, LSP, ISP, and DIP. These guidelines help create flexible and easy-to-understand software designs, avoiding common problems. Read more →

This article explores the Dependency Inversion Principle (DIP) in SOLID design principles, highlighting the benefits of creating flexible and easy-to-maintain code. It provides a Kotlin example for implementing DIP to achieve an adaptable codebase. Read more →

This article explains the Interface Segregation Principle (ISP), a SOLID design principle. ISP says that a class should only implement the methods it needs. The article gives an example of a bad practice that violates ISP and a better practice that follows it by creating small, specific interfaces for each class. Read more →

The Liskov substitution principle ensures that subclass objects can be used interchangeably with those of the superclass, preventing unexpected program errors. Adhering to this rule simplifies code management and increases predictability. Read more →

This article explains the Open-Closed Principle (OCP) of SOLID design, which advises creating flexible and maintainable code by keeping classes open to extension but closed to modification. It uses an example to show how to adhere to the OCP by defining an interface and creating separate classes for each shape. Read more →

The Single Responsibility Principle (SRP) is a design principle promoting maintainable code. It states that each class should have only one job. This post explains its importance with code examples, resulting in more understandable and maintainable code. Read more →

Compare ArrayList and LinkedList data structures in Java. Explore their differences in implementation, time complexity, memory usage, and guidance on when to use each based on use cases. Read more →

Discover some of the best GitHub repositories for Java developers in this article. Learn about data structures, algorithms, Spring framework, coding style tools and more to enhance your skills. Read more →

Explore Java's Runtime class: control JVM execution, manage memory, and execute OS commands. Examples and benefits for building robust and efficient apps. Read more →

This article discusses the differences between TreeMap, HashMap, and LinkedHashMap in Java. It explains the characteristics and use cases of each of these classes to help you choose the right implementation of the Map interface for your project. Read more →

This guide covers system design basics, including performance, scalability, latency, throughput, consistency, availability, background jobs, load balancers, caching, and monitoring. It also recommends resources for further learning, such as books, courses, tutorials, and podcasts. Read more →

Discover 7 Java libraries for better unit and integration testing: AssertJ, Awaitility, Mockito, Wiser, Memoryfilesystem, WireMock, and Testcontainers. Simplify development, reduce testing time, and ensure code quality. Read more →

The Singleton pattern restricts a class's instantiation to one object, providing benefits such as global state, configuration settings, and simplified testing. It enforces a single point of access for the instance of the class and reduces the amount of code needed to maintain a single instance of an object. Read more →

Get fifteen tips to speed up your Java applications and optimize your code for peak performance. Streamlining your architecture and utilizing new technology reduces execution time. Proper code organization and efficient algorithms ensure applications run efficiently. Configure your systems for optimal performance. Implement these tips for maximum speed. Read more →

Learn how to use JUnit 5's feature for ordering test classes to run Spring Boot automated tests from unit to integration tests, with the fastest tests running first. Configure JUnit with a ClassOrderer for a predetermined order. Read more →

Hibernate requires the configuration of a SQL dialect in order to generate appropriate SQL statements for the specified database type. The org.hibernate.dialect package contains many Dialect classes for various RDBMS. Read more →

Implementing a Cache with Spring is a fairly easy task, due to the ease of implementation. For this Spring provides us with a series of annotations that we will see in the rest of the tutorial. Read more →

User perception of website speed is more important than load time in milliseconds. In this article, we analyze various metrics and best practices to improve user perception. Smoothness of scrolling and animations, real-time page load, and responsiveness to user interaction all affect perception. Read more →

Java is a fast, secure, and versatile programming language used in a wide range of applications and websites. From laptops to datacenters, game consoles to scientific supercomputers, Java is everywhere! Read more →

If you are learning how to create web pages and want to try free hosting, I offer you 6 options for you to practice. Although, you can also use them in production. Read more →

Astro is an innovative static site generator that focuses on static generation instead of JS framework. But, how much better is it? Read more →

I use Typescript and decorator libraries for VueJS. This allows me to use a class syntax that's easier to read. I'll show you how to build a counter component that can increment and decrement. Read more →

Angular is a top frontend framework, but to create full-stack apps, you need more. NestJS pairs well with Angular for complete web app development. Read more →

Combining my passions for astronomy and programming, I'm creating a website to countdown the days until the new year, with a simulation of the earth's movement. Read more →

The image picker is a common component that we often need for user profiles and other things. How to add an image picker to flutter to select images from gallery or camera Read more →

Gridsome is a Vue.js-powered, modern site generator for building the fastest possible websites for any Headless CMS, APIs or Markdown-files. Gridsome makes it easy and fun for developers to create fast, beautiful websites without needing to become a performance expert. Read more →

This case study allowed the creation of archives in formats of spatiotemporal scientific data that can be used by several institutions that conduct research on the use of the soils. The tools developed are based on free software and can be used in different areas of application. Read more →