TechUpdateAI publishes practical tutorials and news on AI, Python, Java, React, DevOps and Kubernetes.https://techupdateai.com/https://techupdateai.com/introducing-codepeacock-web-saas-ai-studio/https://techupdateai.com/introducing-codepeacock-web-saas-ai-studio/Meet Codepeacock — the studio behind TechUpdateAI. We design and build websites, SaaS platforms and AI-powered products for businesses worldwide.Sat, 01 Aug 2026 00:00:00 GMThttps://techupdateai.com/what-are-ai-agents-beginners-guide-agentic-ai/https://techupdateai.com/what-are-ai-agents-beginners-guide-agentic-ai/AI agents don't just answer questions — they take actions to reach a goal. Here's how agentic AI works, in plain English, with real examples.Sat, 01 Aug 2026 00:00:00 GMThttps://techupdateai.com/samsung-galaxy-unpacked-2026-z-fold-8-z-flip-8/https://techupdateai.com/samsung-galaxy-unpacked-2026-z-fold-8-z-flip-8/Samsung unveiled its 2026 foldables at Galaxy Unpacked — the Galaxy Z Fold 8, a new Z Fold 8 Ultra, and the Z Flip 8. Here are the prices, specs and release dates.Sat, 01 Aug 2026 00:00:00 GMThttps://techupdateai.com/pega-basics-platform-app-studio-case-types/https://techupdateai.com/pega-basics-platform-app-studio-case-types/Module 1 of the PCSA course: what the Pega Platform is, the difference between App Studio and Dev Studio, and how case types model real business work.Sat, 01 Aug 2026 00:00:00 GMThttps://techupdateai.com/pega-certification-course-pcsa-roadmap/https://techupdateai.com/pega-certification-course-pcsa-roadmap/A free, structured study course for the Pega Certified System Architect (PCSA) exam — the full 6-week roadmap, exam weightings, and every module explained.Sat, 01 Aug 2026 00:00:00 GMThttps://techupdateai.com/rag-retrieval-augmented-generation-explained/https://techupdateai.com/rag-retrieval-augmented-generation-explained/RAG lets an AI answer using YOUR documents instead of guessing. Here's how retrieval-augmented generation works and when to use it.Fri, 31 Jul 2026 00:00:00 GMThttps://techupdateai.com/vector-databases-explained-why-they-power-ai/https://techupdateai.com/vector-databases-explained-why-they-power-ai/Vector databases store meaning, not just text. Learn what they are, how similarity search works, and why every AI app seems to use one.Thu, 30 Jul 2026 00:00:00 GMThttps://techupdateai.com/prompt-engineering-vs-fine-tuning-which-to-use/https://techupdateai.com/prompt-engineering-vs-fine-tuning-which-to-use/Should you tweak your prompt, add RAG, or fine-tune the model? A practical decision guide for getting better results from AI.Wed, 29 Jul 2026 00:00:00 GMThttps://techupdateai.com/interactive-spring-boot-course-spa/https://techupdateai.com/interactive-spring-boot-course-spa/Spring Boot Mastery Course Spring Boot Mastery Overview Modules Module 1: Core Module 2: REST APIs Module 3: Data Module 4: Advanced Project Capstone Project Extras Interview Prep Wed, 19 Nov 2025 00:00:00 GMThttps://techupdateai.com/from-static-to-dynamic-my-first-react-hook-usestate-content-explain-what-state-is-a-components-memory-show-your-counter-code-explain-the-magic-loop-in-your-own-words-onclick-handle/https://techupdateai.com/from-static-to-dynamic-my-first-react-hook-usestate-content-explain-what-state-is-a-components-memory-show-your-counter-code-explain-the-magic-loop-in-your-own-words-onclick-handle/1. 🧠 Key Concepts a) State: A Component’s “Memory” Think of your component from Step 1, <ProfileCard>. It was “dumb.” It only knew what its parent (App) told it via props. It couldSun, 16 Nov 2025 00:00:00 GMThttps://techupdateai.com/my-first-react-app-understanding-components-jsx-and-props/https://techupdateai.com/my-first-react-app-understanding-components-jsx-and-props/1. 🧠 Key Concepts a) What is React? At its core, React is a JavaScript library for building user interfaces. Its two main ideas are: b) Creating Your First App (Vite) We’ll use a tSun, 16 Nov 2025 00:00:00 GMThttps://techupdateai.com/step-3-reacts-most-powerful-patterns-lists-and-controlled-forms/https://techupdateai.com/step-3-reacts-most-powerful-patterns-lists-and-controlled-forms/1. 🧠 Key Concept: Conditional Rendering Your components often need to show different things based on different conditions. This isn’t a special React feature, but rather a pattern Sun, 16 Nov 2025 00:00:00 GMThttps://techupdateai.com/step-4-my-first-api-call-in-react-mastering-the-useeffect-hook-content-explain-why-you-cant-just-fetch-in-the-component-body-the-infinite-loop-introduce-useeffect-as-the-solution-show-you/https://techupdateai.com/step-4-my-first-api-call-in-react-mastering-the-useeffect-hook-content-explain-why-you-cant-just-fetch-in-the-component-body-the-infinite-loop-introduce-useeffect-as-the-solution-show-you/1. 🧠 Key Concepts a) What is a “Side Effect”? A React component’s main job is to be a “pure” function: it takes props and state and returns JSX. A side effect is anything your compSun, 16 Nov 2025 00:00:00 GMThttps://techupdateai.com/step-7-why-is-my-react-app-slow-a-beginners-guide-to-memo-usecallback-and-usememo/https://techupdateai.com/step-7-why-is-my-react-app-slow-a-beginners-guide-to-memo-usecallback-and-usememo/This step is where you go from a “working” app to a “fast” and “professional” app. This is an intermediate-to-advanced topic, but it’s one of the most important for building high-qSun, 16 Nov 2025 00:00:00 GMThttps://techupdateai.com/step-5-from-one-page-to-a-full-website-mastering-react-router/https://techupdateai.com/step-5-from-one-page-to-a-full-website-mastering-react-router/1. 🧠 Key Concepts a) Client-Side vs. Server-Side Routing This is the most important concept to understand. b) The Library: react-router-dom React itself does not include routing. rSun, 16 Nov 2025 00:00:00 GMThttps://techupdateai.com/step-6-reacts-superpower-solving-prop-drilling-with-the-usecontext-hook/https://techupdateai.com/step-6-reacts-superpower-solving-prop-drilling-with-the-usecontext-hook/1. 🧠 Key Concept: The Problem of “Prop Drilling” Imagine your app’s component structure looks like this: The <App> component has the user state. But only the <Avatar> component actSun, 16 Nov 2025 00:00:00 GMThttps://techupdateai.com/step-9-why-i-rebuilt-my-react-blog-with-next-js-and-you-should-too/https://techupdateai.com/step-9-why-i-rebuilt-my-react-blog-with-next-js-and-you-should-too/1. 🧪 Testing with Jest & React Testing Library This is the most critical professional skill on the list. Writing tests ensures you can add features or refactor code without accidenSun, 16 Nov 2025 00:00:00 GMThttps://techupdateai.com/step-8-react-is-just-the-beginning-powering-up-apps-with-react-query-zustand-and-chakra-ui/https://techupdateai.com/step-8-react-is-just-the-beginning-powering-up-apps-with-react-query-zustand-and-chakra-ui/Content: Explain why you’d use these. Show the “before” (useEffect mess) and “after” (useQuery simplicity). Show the “before” (useContext problem) and “after” (Zustand‘s surgical uSun, 16 Nov 2025 00:00:00 GMThttps://techupdateai.com/our-react-learning-roadmap/https://techupdateai.com/our-react-learning-roadmap/Step 0: The Foundation (Prerequisites) Before writing any React code, you must be comfortable with modern JavaScript. Go to Details Step 1: React Fundamentals (The “What”) Goal: UnSat, 15 Nov 2025 00:00:00 GMThttps://techupdateai.com/step-0-javascript-concepts-you-must-know/https://techupdateai.com/step-0-javascript-concepts-you-must-know/React isn’t a new language; it’s a JavaScript library. It uses modern JavaScript features heavily. If you understand these, React will make 10x more sense. a) Modern Variables: letSat, 15 Nov 2025 00:00:00 GMThttps://techupdateai.com/15-spring-boot-security-questions-that-stump-developers/https://techupdateai.com/15-spring-boot-security-questions-that-stump-developers/Spring Boot Security trips up even experienced developers with its layered complexity and subtle configuration requirements. This guide targets Java developers, Spring Boot practitSun, 09 Nov 2025 00:00:00 GMThttps://techupdateai.com/java-interview-questions-answered-beginner-to-expert/https://techupdateai.com/java-interview-questions-answered-beginner-to-expert/Getting ready for a Java interview can feel overwhelming, especially when you’re not sure what questions might come your way. This comprehensive guide covers Java interview questioSun, 09 Nov 2025 00:00:00 GMThttps://techupdateai.com/the-hidden-full-stack-trap-thats-crushing-95-of-developers-react-spring-boot-secrets-exposed/https://techupdateai.com/the-hidden-full-stack-trap-thats-crushing-95-of-developers-react-spring-boot-secrets-exposed/Most developers fall into the same full-stack developer trap without even knowing it exists. You’re building React apps, writing Spring Boot APIs, and calling yourself a full-stackSun, 09 Nov 2025 00:00:00 GMThttps://techupdateai.com/sohum-meets-a-talking-sea-turtle/https://techupdateai.com/sohum-meets-a-talking-sea-turtle/Hello, young explorers! Sohum is back with a splash, and this time, his magical adventures have taken him to a sun-drenched tropical beach! But this isn’t just any beach—it leads tFri, 07 Nov 2025 00:00:00 GMThttps://techupdateai.com/sohum-meets-a-talking-elephant/https://techupdateai.com/sohum-meets-a-talking-elephant/Hello, adventurers! Sohum is back with a brand new, magical journey, and this time, he’s diving into the heart of the savanna to meet one of the most magnificent creatures on EarthThu, 06 Nov 2025 00:00:00 GMThttps://techupdateai.com/introduction-hook-the-reader-the-parent/https://techupdateai.com/introduction-hook-the-reader-the-parent/Hello amazing families and welcome back to our https://www.youtube.com/@iSohum2912 We have some super exciting news! The latest video creation is officially here, and it’s one of oWed, 05 Nov 2025 00:00:00 GMThttps://techupdateai.com/devops-and-kubernetes/https://techupdateai.com/devops-and-kubernetes/DevOps and Kubernetes have become the backbone of modern software development, helping teams deploy applications faster and manage them at scale. This guide is designed for softwarTue, 04 Nov 2025 00:00:00 GMThttps://techupdateai.com/how-is-python-powering-the-next-wave-of-generative-ai-and-large-language-models/https://techupdateai.com/how-is-python-powering-the-next-wave-of-generative-ai-and-large-language-models/Python has become the backbone of the generative AI revolution, powering everything from ChatGPT to DALL-E. This guide is for developers, data scientists, and tech enthusiasts who Tue, 04 Nov 2025 00:00:00 GMThttps://techupdateai.com/new-java-25-features-with-code-example/https://techupdateai.com/new-java-25-features-with-code-example/Java 25 brings exciting new Java 25 features that will make your development workflow smoother and more efficient. This guide is perfect for Java developers, software engineers, anTue, 04 Nov 2025 00:00:00 GMThttps://techupdateai.com/is-python-still-the-king-of-data-science-in-2025-or-is-it-time-to-move-to-real-time-analytics/https://techupdateai.com/is-python-still-the-king-of-data-science-in-2025-or-is-it-time-to-move-to-real-time-analytics/Python has ruled data science for over a decade, but 2025 brings new questions about its future. Real-time analytics demands are pushing organizations to reconsider their tech stacTue, 04 Nov 2025 00:00:00 GMThttps://techupdateai.com/python-is-future/https://techupdateai.com/python-is-future/Is Python the Future of Programming? A Reality Check for Developers and Tech Professionals Python has become the go-to language for millions of developers worldwide, but will PythoTue, 04 Nov 2025 00:00:00 GMThttps://techupdateai.com/agentic-ai-systems-the-shift-from-generation-to-action/https://techupdateai.com/agentic-ai-systems-the-shift-from-generation-to-action/Artificial intelligence is making a huge leap from simply creating content to taking real action in the business world. Agentic AI systems represent this exciting shift, moving beyWed, 15 Oct 2025 00:00:00 GMT