JAVA

Module 1: Core Java Fundamentals

Topics:

• Introduction to Java

Platform evolution, ecosystem architecture, bytecode execution, and the runtime mechanisms of JVM, JDK, and JRE.

• Basic Syntax & Data Types

Memory allocation, primitive and reference types, operators, and robust control flow structures.

• OOPs Concepts

Enterprise object-oriented design patterns, encapsulation, class inheritance, runtime polymorphism, and interface abstraction.

• Exception Handling

Try-catch-finally control structures, checked vs. unchecked exceptions, resource handling with try-with-resources, and custom business exceptions.

• Collections Framework

Comprehensive mastery of List, Set, and Map hierarchies, thread-safe collections, and functional programming via the modern Stream API.

• Multithreading & Concurrency

Thread lifecycles, race condition prevention, thread synchronisation, locks, and asynchronous task management utilising the Java Concurrency Executor framework.

• File I/O & Serialization

NIO.2 non-blocking file handling, data stream buffering, and robust object serialization mechanisms.

Module 2: Database & JDBC

Topics:

• SQL Fundamentals

Structured query design, Data Definition Language (DDL), Data Manipulation Language (DML), complex joins, views, and nested subqueries.

• MySQL / PostgreSQL

Relational database design, index optimisation, ACID compliance, and standard schema normalisation principles.

• JDBC (Java Database Connectivity)

Direct relational database connectivity, high-performance PreparedStatement execution, dynamic CRUD workflows, and programmatic transaction handling.

• Introduction to ORM (Hibernate/JPA)

Object-relational mapping patterns, entity relationships (@OneToMany, @ManyToMany), criteria queries, HQL syntax, and SessionFactory management.

Module 3: Spring Framework (Backend)

Topics:

• Spring Core

Inversion of Control (IoC) principles, constructor and setter Dependency Injection (DI), and enterprise Spring bean lifecycle management.

• Spring Boot

Rapid microservice bootstrapping, auto-configuration architecture, embedded servlet engines, and Maven/Gradle starter POM management.

• Spring MVC

Model-View-Controller design patterns, DispatcherServletflows, @Controller routing, request binding, and template rendering with Thymeleaf.

• RESTful APIs with Spring

Designing enterprise REST endpoints using @RestController, handling HTTP verbs, JSON serialization with Jackson, and semantic ResponseEntity status management.

• Spring Data JPA

Automated repository generation, dynamic query derivation methods, pagination, sorting, and native SQL mapping.

• Spring Security

Role-Based Access Control (RBAC), stateless session architecture, secure authentication pipelines, JSON Web Tokens (JWT), and OAuth2 protocol flows.

• Microservices Basics

Distributed service patterns, service registration and discovery with Spring Cloud Netflix Eureka, load balancing, and API Gateway implementation.

Module 4: Frontend with React.js

Topics:

• HTML5 & CSS3

Accessible, semantic HTML markup, modern responsive design systems, CSS Flexbox, and CSS Grid layouts.

• JavaScript (ES6+)

Modern ECMAScript standards: arrow functions, array destructuring, closures, Promises, and async/await asynchronous workflows.

• React.js Fundamentals

Virtual DOM mechanics, functional component composition, unidirectional data flow, props, component state, and React Hooks (useState, useEffect, useMemo).

• React Router

Client-side single-page routing, dynamic URL parameters, nested routes, and programmatic navigation.

• State Management

Global enterprise application state orchestration utilising the native Context API and Redux Toolkit (RTK).

• API Integration

Asynchronous HTTP service consumption utilising Fetch and Axios, including request/response interceptors and unified error handling.

• Styling in React

Modular visual engineering using CSS Modules, Styled Components, and modern utility-first CSS frameworks like Tailwind CSS.

• Advanced React

Authoring bespoke custom hooks, memoisation patterns, code-splitting via React.lazy, and front-end performance profiling.

Module 5: Node.js & Express.js (Optional Backend)

Topics:

• Introduction to Node.js

Asynchronous non-blocking I/O event loops, the Node package ecosystem (NPM), and CommonJS/ES module architecture.

• Express.js Framework

REST route architecture, global and route-level middleware design, and centralised error-handling pipelines.

• REST API Development

Decoupled backend service construction, scalable MVC architecture, and dynamic CRUD operations.

• Authentication

Stateless token management using JSON Web Tokens (JWT) and pluggable credential strategies via Passport.js.

• Database Integration

Document database persistence using MongoDB and Mongoose ODM, alongside relational schema management via Sequelize ORM.

• Real-time Communication

Full-duplex, low-latency event-driven communication using WebSockets and the Socket.io protocol.

Module 6: Full Stack Integration

Topics:

• Connecting React with Spring Boot

End-to-end full-stack integration, development proxy routing, and Cross-Origin Resource Sharing (CORS) security configuration.

• Authentication Flow

Securing client-server communication: storing and propagating JWTs between React front-ends and Spring Boot/Node back-ends.

• Deployment Strategies

Containerising full-stack workloads with Docker, and provisioning scalable cloud hosting environments on AWS (Elastic Beanstalk, ECS, S3).

• CI/CD Basics

Automating continuous integration, automated unit testing, and continuous cloud deployment pipelines utilising GitHub Actions and Jenkins.