Reduce Boilerplate Code with Lombok in Spring Boot

🚀 My Spring Boot Learning Journey with Vipul Tyagi's YouTube playlist. 🧑💻 Over the past 2 weeks, I’ve been diving into Spring Boot, and I wanted to share what truly worked for me. I followed the amazing content from Engineering Digest, created by Vipul Tyagi. Specifically, this playlist 👉 Spring Boot Mastery: From Basics to Advanced 💡 Why this stood out: Covers fundamentals → advanced topics in a structured way Clear explanations with practical examples Focus on real-world understanding, not just theory 🛠️ What I did differently: Instead of just watching, I built a code-along project alongside the playlist — which made a huge difference in retention and confidence. 📂 Here’s the project I created: 👉 https://lnkd.in/dhcgxGtG It helped me: ✅ Understand core Spring Boot concepts deeply. ✅ Get hands-on with REST APIs, Security, Architecture, and best practices. ✅ Build something tangible while learning. ✅ Deploy the developed code-along project to railway.app 💭 My takeaway: If you're learning Spring Boot, don’t just consume content, build along with it. That’s where real learning happens. 👏 Huge thanks to Vipul Tyagi for creating such valuable content. This course has 47 videos as of now, and it is completely free and, most importantly, far better than many paid courses. If you're starting your Spring Boot journey, I highly recommend checking this out! https://lnkd.in/dkxHk_U3 #SpringBoot #Java #BackendDevelopment #OpenSource #SoftwareDevelopment #Developers #Programming

JAVA FULL STACK DEVELOPMENT 📍 Tap Academy | Day 34 – Day 36 🚀 TOPICS COVERED 🔹 Day 34: Static Members & Method Hiding Understanding static methods in Java Difference between method overriding vs method hiding Concept of compile-time binding Example: Alpha.disp() → "Hi" Beta.disp() → "HELLO" Key Learning: Static methods are hidden, not overridden 🔹 Day 35: Association (HAS-A Relationship) Introduction to Object-Oriented Relationships Types: 🔸 Aggregation (weak relationship) 🔸 Composition (strong relationship) Real-world Example: Mobile HAS-A Charger Mobile HAS-A OS Implemented using object references and class interaction 🔹 Day 36: Method Overriding Rules & Packages Rules of Method Overriding: ✅ Access modifier can be increased ✅ Return type must be same ✅ Covariant return type allowed ✅ Parameters must be same Understanding Java Packages & Access Modifiers Inheritance across packages 💡 KEY TAKEAWAYS ✔ Strong understanding of OOP concepts ✔ Difference between IS-A & HAS-A relationships ✔ Practical implementation of real-world examples ✔ Clear understanding of method behavior ✔ Knowledge of package structure 📌 CONCLUSION These sessions strengthened core Java OOP fundamentals, helping build real-world application logic and preparing for advanced full stack development 🚀 🔖 HASHTAGS #Java #JavaFullStack #TapAcademy #OOP #Inheritance #MethodOverriding #MethodHiding #StaticMethods #HASARelationship #Aggregation #Composition #JavaLearning #CodingJourney #Programming #Developers #StudentLife #TechSkills

🚀 Another Step in My Spring Boot Learning Journey Today, I explored one of the most important concepts in Spring Boot — External Configuration using application.properties and @ConfigurationProperties. This concept plays a crucial role in real-world applications, as it allows developers to manage configurations like database credentials, API keys, and environment-specific settings outside the source code. Instead of hardcoding values, Spring Boot provides a clean and structured way to bind external properties directly to Java objects. 📘 What I Implemented • Created a structured Spring Boot project • Used application.properties for external configuration • Defined database-related properties (driver, URL, username, password) • Mapped properties to a Java class using @ConfigurationProperties • Registered bean using @Component • Injected dependency using @Autowired • Used CommandLineRunner to execute logic on application startup 🔎 Project Flow • Spring Boot application starts • application.properties loads automatically • Properties bind to the DatabaseConnection class • Bean is injected into the runner class • Output is successfully printed on the console 💡 Key Takeaway External configuration helps build clean, flexible, and scalable applications. Any change in configuration can be handled without modifying the core business logic. 🎯 Why This Matters In real-world scenarios, applications run across multiple environments like development, testing, and production, each having different configurations. Spring Boot makes it easy to manage these variations efficiently. 🙏 Thanks to Prasoon Bidua Sir for the continuous guidance and support throughout my learning journey. #Java #SpringBoot #Spring #ConfigurationProperties #ApplicationProperties #BackendDevelopment #DependencyInjection #Programming #SoftwareDevelopment #CodingJourney #LearningInPublic 🚀

⚡ Maven vs Gradle — Which one should you learn? If you're starting with Java build tools, this confusion is REAL. So I broke it down in a simple infographic 👇 #What are Build Tools? ==> Build tools like Apache Maven and Gradle help you: -> Compile code -> Manage dependencies (libraries) -> Run tests -> Package your app (JAR/WAR) -> Automate everything 👉 Instead of doing things manually, they do it in one command #What is Maven? ==> Think of Maven as: “Strict teacher who gives you a fixed structure” Key Points: -> Uses XML (pom.xml) -> Follows convention over configuration -> Easy to learn -> Widely used in Spring Boot Example: <dependency>  <groupId>org.springframework.boot</groupId>  <artifactId>spring-boot-starter-web</artifactId> </dependency> 👉 Just add this → Maven downloads everything automatically #What is Gradle? (Modern approach) ==> Think of Gradle as: “Flexible tool where you can do things your way” Key Points: -> Uses Groovy / Kotlin DSL -> Faster builds ⚡ -> Highly customizable -> Used in modern projects (Android, microservices) Example: implementation 'org.springframework.boot:spring-boot-starter-web' 👉 Cleaner + shorter than Maven #When should YOU use what? 👉 Start with Maven if: -> You’re a beginner -> You want structure -> You’re learning Spring Boot 👉 Use Gradle if: -> You want speed -> You’re working on big projects -> You need customization #Real-world tip (important) ==> Most beginners overthink this. 👉 Truth: -> Both are used in industry -> Switching later is EASY -> Focus more on DSA + projects #Key Takeaways: • Maven = Simple, structured, beginner-friendly • Gradle = Faster, flexible, industry-preferred #My suggestion: Start with Maven → Move to Gradle later Which one do you use? 🤔 #Java #Maven #Gradle #BuildTools #Programming #Backend #SpringBoot #Coding #Tech

Another step forward in my Spring Framework learning journey. Today, I worked on one of the most important concepts in backend development: Dependency Injection using @Autowired and Annotation-Based Configuration. Instead of manually creating objects with the new keyword, Spring automatically manages objects (beans) and injects dependencies wherever required. This makes code cleaner, more maintainable, and easier to scale. What I Implemented Today: • @Component for automatic bean creation • @Autowired for dependency injection • @ComponentScan for package scanning • Java-based configuration using configuration classes • Layered structure with Repository, Service, and Test packages • Object management using Spring IoC Container Project Flow: • Repository layer created as a bean • Service layer automatically received Repository dependency • Application context loaded configuration • Final object fetched from container and executed successfully Key Learning: When objects are managed by Spring instead of manual creation, code becomes loosely coupled and follows professional development practices. Why This Matters: In real-world backend applications, managing dependencies manually becomes messy as projects grow. Spring solves this problem with IoC and Dependency Injection. This hands-on implementation helped me understand not only how annotations work, but why Spring is widely used in enterprise applications. Special thanks to Prasoon Bidua Sir for the guidance and clear explanation of concepts. #Java #Spring #SpringFramework #Autowired #DependencyInjection #IoC #BackendDevelopment #Programming #SoftwareDevelopment #CodingJourney #LearningInPublic

Recently while learning Spring Boot, I found myself constantly revising annotations again and again… so I decided to do something about it. I created a handwritten cheat sheet covering most of the important annotations — from Core Spring to JPA, REST, Validation, Lombok, and even a quick JWT structure overview. It’s simple, not fancy — just the way I personally understand and revise things. For example, in the first page I’ve summarized things like @SpringBootApplication, @Service, @Repository, along with JPA mappings and REST APIs in a very straightforward way. On the second page, I’ve included validation annotations, Lombok shortcuts, security basics, and JWT structure I’m still learning, so this is more like notes from a student for students — not some perfect documentation. If you’re working with Spring Boot, this might help you quickly revise concepts before coding or interviews. Would love to hear your feedback or if I should add anything more to this 🙌 #springboot #java #backenddevelopment #learninginpublic #handwritten #programming #notes #cheatsheet

🚀 #Day85 of My Java Learning! Today I explored Spring Boot, a powerful framework that simplifies building Java applications quickly and efficiently. ✨ 𝐖𝐡𝐚𝐭 𝐢𝐬 𝐒𝐩𝐫𝐢𝐧𝐠 𝐁𝐨𝐨𝐭? ➜ Spring Boot is an extension of the Spring Framework used to build standalone applications with minimal configuration ➜ It eliminates complex setup and allows developers to focus on business logic ➜ Comes with embedded servers like Tomcat 📌 𝐁𝐞𝐧𝐞𝐟𝐢𝐭𝐬 𝐨𝐟 𝐒𝐩𝐫𝐢𝐧𝐠 𝐁𝐨𝐨𝐭 ➜ Auto Configuration → Automatically configures application based on dependencies ➜ Standalone Applications → No need for external servers ➜ Embedded Servers → Comes with Tomcat, Jetty ➜ Less Boilerplate Code → Reduces XML configuration ➜ Fast Development → Quick project setup using Spring Initializr ➜ Production Ready → Built-in features like monitoring and metrics ✨ 𝐒𝐩𝐫𝐢𝐧𝐠 𝐁𝐨𝐨𝐭 𝐏𝐫𝐨𝐣𝐞𝐜𝐭 𝐒𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 A typical Spring Boot project follows a clean structure: ➜ 𝐬𝐫𝐜/𝐦𝐚𝐢𝐧/𝐣𝐚𝐯𝐚 • Contains main application code ➜ 𝐜𝐨𝐧𝐭𝐫𝐨𝐥𝐥𝐞𝐫 • Handles user requests ➜ 𝐬𝐞𝐫𝐯𝐢𝐜𝐞 • Contains business logic ➜ 𝐫𝐞𝐩𝐨𝐬𝐢𝐭𝐨𝐫𝐲 • Interacts with database ➜ 𝐞𝐧𝐭𝐢𝐭𝐲 • Represents database tables ➜ 𝐫𝐞𝐬𝐨𝐮𝐫𝐜𝐞𝐬 • application.properties / application.yml ➜ 𝐦𝐚𝐢𝐧 𝐜𝐥𝐚𝐬𝐬 • Entry point (@SpringBootApplication) ✨ 𝐒𝐩𝐫𝐢𝐧𝐠 𝐯𝐬 𝐒𝐩𝐫𝐢𝐧𝐠 𝐁𝐨𝐨𝐭 🔹 𝐒𝐩𝐫𝐢𝐧𝐠 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤 • Requires manual configuration • Needs external server setup • More setup time • Suitable for complex configurations 🔹 𝐒𝐩𝐫𝐢𝐧𝐠 𝐁𝐨𝐨𝐭 • Auto configuration • Embedded server • Minimal setup • Faster development ➜ Spring → More control ➜ Spring Boot → More convenience 📌 𝐖𝐡𝐚𝐭 𝐈 𝐋𝐞𝐚𝐫𝐧𝐞𝐝 𝐓𝐨𝐝𝐚𝐲 🔹 How Spring Boot simplifies Spring applications 🔹 Importance of auto-configuration 🔹 Understanding project structure 🔹 Difference between Spring and Spring Boot 🔹 How real-world apps are built faster using Spring Boot 💡 𝐊𝐞𝐲 𝐓𝐚𝐤𝐞𝐚𝐰𝐚𝐲 Spring Boot makes development faster, simpler, and production-ready by reducing configuration and focusing on code. 10000 Coders | Gurugubelli Vijaya Kumar #Java #SpringBoot #BackendDevelopment #JavaDeveloper #LearningJourney #100DaysOfCode

This is my first post here 🙂 I wanted to try something hands-on instead of just reading. So I took a simple Java program and tried to: run it using Docker then deploy it on a Kubernetes cluster (using Kind) It was confusing at first, especially things like: Java version mismatch (21 vs 17) Docker vs Kubernetes environments ImagePullBackOff errors But after debugging step by step, I finally got it running and was able to see logs from the pods. 💡 One thing that really made sense to me: Kubernetes doesn’t run containers directly — it manages them through Pods and keeps things in the desired state. It’s a small project, but it helped me understand how things actually work behind the scenes. Next, I’m planning to build a proper Spring Boot app and expose it so it can be accessed in a browser. 🔗 GitHub repo in comments #Docker #Kubernetes #DevOps #Java #LearningInPublic

🚀 Spring Boot 3 Hours Live Workshop – Highlights | 12 April Session Missed our live session? Here’s a quick look at what happened in our Spring Boot 3-Hour Live Workshop conducted on April 12. In this hands-on workshop, participants learned how to build REST APIs using Spring Boot from scratch with real-time coding and practical explanations. 📚 What students learned in this session: Introduction to Spring Boot fundamentals Project setup using Spring Initializr Building REST APIs step-by-step Controller, Service & Repository layers Database integration basics Best practices for backend development 👨💻 This workshop is designed especially for: Java beginners College students Developers moving into backend development Anyone preparing for Spring Boot interviews 🔥 Join our upcoming live workshops to learn by building real projects. 🔗 Register for the next session: link in the comment Thanks Naga Nandhini for this session. 📅 Follow us for more workshops and programming sessions. #SpringBoot #JavaDeveloper #BackendDevelopment #RESTAPI #LearnJava #Hackforge

🚀 JAVA FULL STACK DEVELOPMENT 📍 Tap Academy | Day 31 & Day 32 📘 Topic: Object-Oriented Programming (OOPs) & Inheritance Deep Dive 🔹 Concepts Covered 🏛️ OOPs Pillars: 🔐 Encapsulation 🧬 Inheritance 🔁 Polymorphism 🎭 Abstraction 🔹 Inheritance Concepts Types of Inheritance in Java Single Inheritance Multilevel Inheritance Hierarchical Inheritance ❌ Multiple Inheritance (Not supported in Java using classes) ❌ Cyclic Inheritance (Not allowed in Java) 👉 A class cannot inherit from itself directly or indirectly 🔷 Diamond Problem Explanation 🔹 Constructors in Inheritance Default Constructor Parameterized Constructor Constructor Chaining 🔹 Keywords Explained 👉 this() Calls current class constructor Used for constructor chaining within same class 👉 super() Calls parent class constructor Used for parent-child constructor chaining 🔹 Rules of this() and super() Must be the first statement inside constructor Cannot use both this() and super() in same constructor super() is automatically added if not written 🔹 Memory Management 📦 Stack Segment → Stores references 🗄️ Heap Segment → Stores actual objects Object creation using new keyword 💡 Key Learnings Understood core OOP principles for real-world coding Learned how inheritance works internally Gained clarity on constructor execution flow Differentiated between this() and super() clearly Visualized memory allocation (Stack vs Heap) 🛠️ Hands-On Practice Implemented inheritance using classes Practiced constructor chaining programs Traced program execution step-by-step Solved real-time coding examples 🎯 Outcome Built strong foundation in OOPs & Inheritance, essential for writing scalable and reusable Java applications 🔖 #Hashtags #Java #FullStackDevelopment #OOPs #Inheritance #Encapsulation #Polymorphism #Abstraction #JavaLearning #TapAcademy #CodingJourney #DeveloperLife