Apache Kafka is one of the most powerful tools for building distributed applications. Whether you’re building microservices, streaming systems, or real-time applications, Kafka acts as a reliable and scalable messaging backbone. And when it comes to Spring Boot, the KafkaTemplate class is your go-to tool for producing messages to Kafka topics. In this complete guide, … Read more
Master Spring Boot Project Initialization the Right Way! Table of Contents 1. What is Spring Boot? Spring Boot is an open-source framework from Pivotal (VMware) that simplifies Java enterprise application development. It’s built on top of the core Spring Framework, designed to reduce boilerplate code and configuration. Key Features: Spring Boot = Spring + Auto … Read more
Learn what Spring Boot is, why it matters, how it works, and how you can build production-ready Java applications — the smart way. Table of Contents 1. Introduction If you’re a Java developer, you’ve likely heard of Spring Boot — a popular framework that simplifies building Java-based applications. Whether you’re building microservices, APIs, or full-stack … Read more
Learn how to build, dockerize, and run a Spring Boot application in containers like a pro! Introduction Are you tired of hearing “It works on my machine”?Docker solves this problem by packaging your app with all its dependencies into a portable container. In this step-by-step guide, we’ll show you how to containerize a Spring Boot … Read more
Introduction Spring Boot simplifies Java development by reducing boilerplate and providing powerful annotations. This cheat sheet is a quick reference to the most essential Spring Boot annotations that every developer should know — perfect for daily use and interview prep. Core Spring Boot Annotations @SpringBootApplication Marks the main class of a Spring Boot application. Combines … Read more
Java Streams API Cheat Sheet — Quick Reference with Daily Use Examples Introduction The Java Streams API allows developers to process collections in a functional and elegant way. Whether it’s filtering, transforming, or collecting results, streams can make your code more readable and concise. This cheat sheet is your quick reference for daily use — … Read more
Introduction Spring Data JPA is a game-changer when it comes to working with databases in Java. It allows you to perform CRUD operations and complex queries without writing boilerplate code. This cheat sheet will help you quickly recall the most essential Spring Data JPA annotations, methods, and techniques you’ll use every day. Basic Setup Entity … Read more
Java Collections Cheat Sheet — Essential Guide for Everyday Coding 💡 Introduction The Java Collections Framework is a set of classes and interfaces for working with groups of objects. This cheat sheet gives you quick access to the most commonly used collections, methods, and examples. 💡 Key Interfaces 💡 Common Implementations 💡 List Examples 💡 … Read more
Docker Cheat Sheet — Essential Commands for Daily Use 💡 Introduction Docker simplifies containerized application development, deployment, and management. This cheat sheet covers essential commands that developers use daily for efficient workflow management. 💡 Docker Basics 💡 Working with Images 💡 Managing Containers 💡 Accessing Containers 💡 Networking 💡 Docker Compose 💡 Cleanup Commands 💡 … Read more