Backend Engineering Tutorials

Mastering PDF Creation in Java with OpenPDF

Learn how to generate professional PDFs in Java using OpenPDF. Create invoices, tables, images, and styled documents easily.

Learn how to build a modern booking UI using Next.js, TypeScript, and HeroUI with calendars, modals, and clean UX.

Learn how Spring AI helps Java apps convert, summarize, and enrich CSV, JSON, and XML data automatically with AI.

Follow this step-by-step guide to build a responsive booking system with Next.js, TypeScript and HeroUI Calendar and Modal. Learn.

Learn how to implement AI function calling in Spring AI. Define Java methods as tools, connect them to models, and build smart workflows.

Learn how to create a responsive pricing page in Next.js using HeroUI cards, TypeScript, and a toggle for monthly and yearly plans.

Learn how to use Spring AI for sentiment analysis to classify text, detect emotions, and extract insights that drive smarter decisions.

Create a responsive collapsible sidebar with HeroUI and Next.js (TypeScript). Accordion, dynamic routes and active-link highlighting

Learn how to create an AI-powered text summarization tool using Spring AI in Java. Build clean, efficient code with minimal setup.

Learn to build a fast, interactive Slack-style Notification Center using Next.js, HeroUI Tabs, Badges, and Toasts with TypeScript.