The Singleton design pattern sounds simple — “one instance, one class.” But if an interviewer gives you five minutes and a whiteboard, the real depth reveals itself fast. Thread safety, memory model guarantees, reflection attacks, serialization loopholes, classloader edge cases, and how Spring quietly replaces the whole thing. This guide covers everything a senior Java … Read more
Published May 2, 2026 | Tags: Claude Code, Gemma 4, Google AI, Developer Tools, Open Source What if you could harness the full power of Claude Code — Anthropic’s agentic coding assistant — but swap out the underlying model for Google’s open Gemma 4 or any Gemini model, completely free? Thanks to an elegant open-source … Read more
Series: GenAI with Java | Post 2 of 21 If you are a Java developer who wants to start building AI-powered applications using Google Gemini, you are in the right place. In this tutorial, we will set up the Google GenAI Java SDK, connect to the Gemini API, and make our first AI call — … Read more
Note: – 2026-04-15: Qwen OAuth free tier has been discontinued. To continue using Qwen Code, switch to Alibaba Cloud Coding Plan, OpenRouter, Fireworks AI, or bring your own API key. Run qwen auth to configure. As AI-assisted software development rapidly evolves, developers are shifting away from browser-based chatbots and moving toward tools that live directly … Read more
If you are looking for a practical way to use Gemma 4 in Java, this project is a strong place to begin. It shows how to connect a Java application to a powerful generative AI model, keep conversation history, stream responses in real time, and build a modern chatbot experience—without heavy frameworks. This guide is … Read more
Google DeepMind has officially unveiled Gemma 4, the latest and most capable generation of its open-weights AI model family. Built on the same research and technology powering Google’s proprietary Gemini 3 series, Gemma 4 represents a significant leap forward — delivering frontier-level intelligence to devices ranging from smartphones and Raspberry Pis all the way to … Read more
Note: – 2026-04-15: Qwen OAuth free tier has been discontinued. To continue using Qwen Code, switch to Alibaba Cloud Coding Plan, OpenRouter, Fireworks AI, or bring your own API key. Run qwen auth to configure. If you like the idea of Claude Code but want a serious free option, Qwen Code is one of the … Read more
Want to use Claude Code without paying anything? Here’s the truth:Claude Code itself isn’t free when used with official APIs—but there’s a powerful workaround. By combining it with Ollama, you can run: In this guide, you’ll learn how to use Claude Code free with ollama What is Claude Code? Claude Code is an agentic terminal-based … Read more
In a world where quality education is often locked behind expensive subscriptions, a new free learning platform is breaking the barrier. 👉 Try it now: https://gangforcode.com/aletheiax/ Welcome to AletheiaX, a completely free learning tool designed to help developers, students, and tech enthusiasts master skills without spending a single rupee. 💡 What is AletheiaX? AletheiaX is … Read more
Java SE 26 (JDK 26) was released in March 2026 as a non-LTS feature update. Unlike major LTS releases, Java 26 focuses on improving performance, security, and developer productivity rather than introducing new stable language syntax. It includes around 10 JEPs (Java Enhancement Proposals), many of which are preview or incubator features. In simple terms, … Read more
