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Java Enterprise Pro Developer

Target Audience: Software Developers (0-3 years)

Duration: 80 Hours (customizable for fast-track or extended formats)

Mode: Classroom | Virtual Instructor-Led | Hybrid

Learning Outcomes
  • ✔Strengthen Java fundamentals and OOP principles for enterprise-grade applications
  • ✔Develop, test, and package applications using IDEs and command-line workflows
  • ✔Apply Java Collections, Streams, Generics, and Exception Handling
  • ✔Gain proficiency in Java 8+ and Java 11+ features
  • ✔Build, test, and deploy a capstone project simulating an enterprise application
  • ✔Improve developer productivity through best practices, debugging, and unit testing
Prerequisites
  • Fundamentals of any programming language
  • Familiarity with Git and version control workflow
  • Understanding of core object-oriented programming (OOP) principles
  • Basic knowledge of relational databases and SQL
  • Ability to set up and work with JDK, Eclipse IDE and Maven or Gradle
Lab Setup
  • JDK 11 (or latest)
  • IntelliJ IDEA / Eclipse IDE (latest)
  • Git installed and configured
  • Maven or Gradle
  • Docker Desktop
  • Postman
  • MySQL or PostgreSQL.
  • GitHub Actions access
Course Breakdown

Day 1 (8 hours):

Object Oriented Programming and Core Java

Focus

  • OOP principles: Encapsulation, Inheritance, Polymorphism, Abstraction
  • JVM, JRE, JDK — architecture overview
  • Java syntax basics: variables, operators, control structures
  • Constructor and constructor chaining
  • Overloading and overriding

Hands-on Exercises

  • Write a program demonstrating all OOP principles using a real-world scenario
  • Implement constructor chaining in a Vehicle class hierarchy
  • Demonstrate method overloading and overriding with practical examples

Deliverables

  • Employee Management System applying OOP concepts

Day 2 (8 hours):

File, Exception handling and Collections

Focus

  • File I/O (Reader, Writer, Streams, Serialization)
  • Exceptions Handling (try-catch-finally, custom exceptions)
  • Collections Framework: List, Set, Map, Iterator
  • Generics (Java 5)
  • Annotations
  • Java Memory Model and Garbage Collection basics

Hands-on Exercises

  • Read/write employee data from a file using collections
  • Implement custom exceptions for invalid input cases
  • Demonstrate generic methods and custom annotations
  • Troubleshoot the performance issues

Deliverables

  • Store/retrieve data from a file
  • Use collections for employee storage and retrieval
  • Add exception handling for invalid employee data

Day 3 (8 hours):

Java 8 Features and Functional Programming

Focus

  • Lambda Expressions and Functional Interfaces
  • Streams API: intermediate & terminal operations
  • Parallel Streams for large-scale data
  • Optional class for null safety
  • Default & static methods in interfaces

Hands-on Exercises

  • Filtering, mapping, and reducing operations on employee data using streams
  • Use Optional to avoid null pointer issues
  • Create custom functional interfaces and apply lambdas
  • Demonstrate performance comparison with parallel streams

Deliverables

  • Searching/filtering employees with Streams
  • Handling missing employee data using Optional
  • Parallel processing for bulk operations

Day 4 (8 hours):

Java 11+ Features and Modern Enhancements

Focus

  • Local-Variable Type Inference (var)
  • Java 9 Modules (modular programming basics)
  • Enhanced Collection and Optional methods
  • String and File API enhancements
  • HTTP Client API (Java 11)
  • records (Java 16) and sealed classes (Java 17 LTS)

Hands-on Exercises

  • Refactor existing code to use var where applicable
  • Demonstrate List.of(), Map.of(), and new collection factory methods
  • Explore new String methods (isBlank, lines, repeat)
  • HTTP Client API to fetch external data (e.g., fetch user details from a REST API)

Deliverables

  • Making it modular (Java 9 modules)
  • Integrating with a public API using Java 11 HTTP Client
  • Using modern collections and string APIs

Day 5 (8 hours):

Testing & Logging

Focus

  • Test-Driven Development (TDD)
  • JUnit4 or JUnit5 & Mockito
  • JUnit4 or JUnit5 & parameterized tests
  • Logback
  • Logging frameworks (SLF4J, Log4j)

Hands-on Exercises

  • Write unit tests for Employee service classes using JUnit5
  • Mock dependencies using Mockito (e.g., database or API service)
  • Add logging to track system events and exceptions

Deliverables

  • Comprehensive JUnit tests for business logic
  • Mocked tests for external dependencies
  • Integrated logging using SLF4J + Log4j

Day 6 (8 hours):

Persistence and Spring

Focus

  • JDBC (Java Database Connectivity)
  • Hibernate / JPA
  • Spring Core (Dependency Injection, Beans, Configuration)
  • Spring Data JPA

Hands-on Exercises

  • Connect Employee Management System to a relational DB (MySQL/PostgreSQL)
  • Create DAO layer using JDBC for CRUD operations
  • Replace JDBC with JPA/Hibernate for ORM
  • Use Spring Core to manage beans and dependency injection

Deliverables

  • Database persistence via JPA/Hibernate
  • DAO and Service layers with proper DI using Spring Core

Day 7 (8 hours):

Spring Boot with Spring Security + JWT Authentication

Focus

  • Building RESTful APIs with Spring Boot
  • Fundamentals of Authentication and Authorization
  • Role-based access control in enterprise applications
  • Implementing JWT for stateless authentication and secure APIs
  • CORS handling and Security filters

Hands-on Exercises

  • Convert Employee Management System into a REST API using Spring Boot
  • Add endpoints for CRUD operations (/employees)
  • Secure APIs with Spring Security and role-based authorization (Admin/User)
  • Implement JWT authentication for login and access control

Deliverables

  • Secure JWT-based login system
  • Role-based access control for endpoints

Day 8 (8 hours):

Microservices and Messaging

Focus

  • Microservices architecture
  • Synchronous communication (REST APIs)
  • Asynchronous communication (RabbitMQ or Apache Kafka)
  • Service decomposition and modular design
  • API Gateway (Spring Cloud Gateway / Nginx)

Hands-on Exercises

  • Break Employee Management System into Microservices
  • Implement inter-service communication using REST
  • Integrate Kafka/RabbitMQ for event-driven messaging

Deliverables

  • Separate microservices for employees, departments, and authentication
  • Messaging system integrated for async communication

Day 9 (8 hours):

Docker and Containerization

Focus

  • Docker (images, containers, volumes, networking)
  • Containerizing Spring Boot microservices
  • Introduction to CI/CD pipelines (GitHub Actions)
  • Automating builds, tests, and deployments in enterprise applications
  • SonarQube for static code analysis

Hands-on Exercises

  • Write Docker files for each microservice
  • Run microservices in containers and configure Docker networking
  • Use Docker Compose to orchestrate multiple services
  • Create a GitHub Actions pipeline to build and test microservices on commit

Deliverables

  • Dockerized employee, department, and auth services
  • Automated build pipeline using GitHub Actions

Day 10 (8 hours):

Capstone Project – Enterprise-Grade Application

Focus

  • Design and implementation of a modular, maintainable microservices system
  • Containerizing microservices
  • Deploying via CI/CD pipelines
  • Implementing logging, health checks, and monitoring for observability

Hands-on Exercises

  • Finalize microservices architecture with database + messaging
  • Deploy full system via Docker Compose or Kubernetes (optional)
  • Add health checks & logging (Spring Boot Actuator + ELK/Prometheus)
  • Demonstrate CI/CD pipeline covering code commit, build, test, and deploy
  • Deploy on Cloud (AWS/GCP/Azure) - optional

Deliverables

  • Microservices architecture
  • JWT-based security
  • Messaging integration
  • Dockerized deployment with CI/CD
  • Logging & monitoring for production readiness
Corporate Value-Adds
  • Git workflows and Git Hygiene
  • CI/CD (GitHub Actions)
  • Static Code Analysis and Quality Checks
  • Containerization and Cloud-Ready Deployment
  • Proactive Debugging & Troubleshooting
  • Agile and DevOps integration with CI/CD workflows
Training Collateral
  • PDF Notes: Core Java, OOP, Java 8+ & Java 11+ Features
  • Code Repository on GitHub (examples & demo projects)
  • Capstone Project Guidelines
  • Recorded videos – optional
  • Assessments
Return on Investment (ROI)
  • ✔Faster onboarding of fresh hires – reduced time-to-productivity
  • ✔Higher developer productivity – accelerated delivery
  • ✔Better code quality – reduced maintenance cost
  • ✔Improved project delivery timelines – higher customer satisfaction
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