GangForCode If you are preparing for a Java interview — whether for a junior, mid-level, or senior backend role — understanding how interviewers think is just as important as memorizing answers. Modern interviews focus on core Java fundamentals, real-world problem solving, performance, and system design skills. This article gives you a plagiarism-free, structured guide to the … Read more
Artificial Intelligence is no longer limited to Python ecosystems. With LangChain4j, Java developers can integrate modern LLMs cleanly and professionally. In this tutorial, we’ll build an interactive AI console using Google Gemini — specifically the fast and efficient Gemini 2.5 Flash model. By the end of this guide, you will have: What is LangChain4j? LangChain4j … Read more
Modern applications often need to perform multiple tasks simultaneously—processing user requests, calling external APIs, handling database operations, or running background jobs. Java provides powerful concurrency tools, and one of the most important among them is the ExecutorService framework. Instead of manually creating and managing threads, ExecutorService simplifies thread management, improves performance, and helps developers build … Read more
Modern software systems must execute multiple operations concurrently, such as serving user requests, processing data, invoking APIs, and performing database updates. Threads in Java enable this concurrency model by allowing multiple execution paths within a single process, preventing the performance bottlenecks of purely sequential execution. This is where threads in Java become essential. A thread … Read more
Exception handling in Spring Boot is not merely about catching runtime errors; it is about controlling the failure lifecycle within the request-processing pipeline. From the moment an exception is thrown, Spring’s DispatcherServlet coordinates with exception resolvers, controller advice components, and response converters to transform failures into structured, semantically meaningful HTTP responses that align with REST … Read more
Is your documentation workflow slowing you down? Discover the lightweight, browser-based editor that renders your Markdown in real-time. For developers, technical writers, and note-takers, Markdown is the universal language of the web. It powers our GitHub READMEs, our documentation, and even our Slack messages. But let’s be honest: firing up a heavy IDE or guessing … Read more
Free Typing Test Online – Check Your Typing Speed & Accuracy Instantly Typing speed is a critical digital skill in today’s world. Whether you are a student, job seeker, programmer, or office professional, your ability to type fast and accurately directly impacts productivity. With our Free Typing Test Online, you can instantly measure your Words … Read more
Data is the foundation of data analytics. Before analyzing or visualizing anything, we must first understand where data comes from (source of data) and what type of data it is (nature of data).This article explains both concepts in a simple, beginner-friendly way, with real-life examples. What Is Data? Data is a collection of facts, figures, … Read more
In today’s digital world, data is everywhere — from social media likes and online purchases to sensor data and business reports. But raw data alone has no value unless we analyze it. That’s where Data Analytics comes in. This blog will help you clearly understand what data analytics is, why it matters, its types, process, … Read more
Linear Search in C – Beginner-Friendly Tutorial with Example Linear Search in C is one of the simplest and most important searching algorithms for beginners. It is often the first searching technique taught in programming because it is easy to understand and implement. In this tutorial, you will learn Linear Search in C from scratch, … Read more
