In 2025, if you want to become a Java Developer, then. follow this roadmap. ➤ 𝗝𝗮𝘃𝗮 + 𝗔𝗱𝘃𝗮𝗻𝗰𝗲 𝗝𝗮𝘃𝗮 • Variables, data types, and operators • Control structures (if-else, loops) • Functions/methods • Basic data structures (arrays, lists, stacks, queues) • Setup Java development environment (JDK, IDEs like IntelliJ IDEA or Eclipse) • Basic syntax and structure of Java programs • Object-Oriented Programming (OOP) concepts: classes, objects, inheritance, polymorphism, encapsulation, abstraction • Exception handling • Input/Output (I/O) operations • Java Collections Framework (List, Set, Map) • Multithreading and Concurrency • Generics and Enums • Lambda expressions and Stream API • Java 8+ features (functional programming concepts, new date and time API) • Annotations and Reflection ➤ 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲 • Relational Databases: MySQL, PostgreSQL • SQL: CRUD operations, Joins, • Indexes, Transactions • JDBC (Java Database Connectivity) • NoSQL Databases: MongoDB, Cassandra • Understanding of when and why to use NoSQL databases ➤ 𝗦𝗽𝗿𝗶𝗻𝗴 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸 1. Core Spring Concepts: • Spring Boot for rapid application development • Dependency Injection (DI) and Inversion of Control (IoC) 2. Spring Modules: • Spring Data JPA (for database interactions) • Spring MVC (for creating web applications) • Spring Security (for authentication and authorization) • Spring Cloud (for developing cloud- native applications) 3. RESTful Web Services: • Building REST APIs with Spring Boot • Understanding of REST principles and HTTP methods (GET, POST, PUT, DELETE) • JSON (de) serialization with Jackson ➤ 𝗔𝗣𝗜'𝘀 𝗮𝗻𝗱 𝗠𝗶𝗰𝗿𝗼𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 1. RESTful APIs: • Best practices for designing and documenting APIs (Swagger/ OpenAPI) • Microservices Architecture: • Fundamentals of microservices • Communication between microservices (REST, gRPC, messaging) • Service discovery and configuration management • Using Spring Cloud components (Eureka, Config Server, etc.) ➤ 𝗖𝗼𝗱𝗲 𝗦𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲 𝗯𝗲𝘀𝘁 𝗽𝗿𝗮𝗰𝘁𝗶𝗰𝗲𝘀 - Keep it simple: Break down complex logic into smaller methods. - Single Responsibility Principle (SRP): Each class should handle one responsibility. - Don't Repeat Yourself (DRY): Avoid duplication by extracting reusable code. - Proper formatting: Use consistent indentation and formatting for readability. ➤ Best Java Resources: https://t.me/Java_Programming_Notes Like for more ❤️