Description

Introduction
This training provides a comprehensive, hands-on exploration of essential and advanced Java design patterns to help developers build robust, scalable, and reusable software components. Participants will learn how to apply proven design solutions that improve architecture quality, enhance maintainability, and reduce technical debt.

Prerequisites

• Basic to intermediate knowledge of Java

• Understanding of OOP concepts (classes, inheritance, interfaces)

• Familiarity with core Java APIs

• Optional: Experience with real-world application development

Table of Contents

1. Introduction to Design Patterns
 1.1 What Are Design Patterns?
 1.2 Importance and Benefits
 1.3 Categories of Design Patterns
 1.4 Best Practices and Anti-Patterns

2. Core Object-Oriented Principles
 2.1 SOLID Principles
 2.2 DRY, KISS and YAGNI
 2.3 Composition vs Inheritance
 2.4 Encapsulation and Abstraction Techniques

3. Creational Design Patterns
 3.1 Singleton Pattern
 3.2 Factory Method Pattern
 3.3 Abstract Factory Pattern
 3.4 Builder Pattern
 3.5 Prototype Pattern

4. Structural Design Patterns
 4.1 Adapter Pattern
 4.2 Facade Pattern
 4.3 Composite Pattern
 4.4 Decorator Pattern
 4.5 Proxy Pattern
 4.6 Bridge Pattern
 4.7 Flyweight Pattern

5. Behavioral Design Patterns
 5.1 Strategy Pattern
 5.2 Observer Pattern
 5.3 Command Pattern
 5.4 Template Method Pattern
 5.5 Chain of Responsibility Pattern
 5.6 State Pattern
 5.7 Visitor Pattern
 5.8 Mediator Pattern
 5.9 Iterator Pattern

6. Applying Design Patterns in Real Java Applications
 6.1 Refactoring Legacy Code with Patterns
 6.2 Improving Application Performance
 6.3 Designing for Testability
 6.4 Patterns in Microservices and Modern Java

7. Hands-On Pattern Implementation Workshop
 7.1 Live Coding: Creational Patterns
 7.2 Implementing Structural Patterns in Modules
 7.3 Building Behavior-Driven Components
 7.4 Group Activity: End-to-End Pattern-Based Design

8. Advanced Topics
 8.1 Combining Multiple Patterns
 8.2 Pattern Pitfalls and Overengineering
 8.3 Enterprise Integration Patterns
 8.4 Design Patterns in Frameworks (Spring, Hibernate)

9. Project: Design & Implement a Pattern-Rich Java Module
 9.1 Requirement Analysis
 9.2 Architecture Design Using Patterns
 9.3 Implementation & Review
 9.4 Final Presentation

This training equips developers with the skills to confidently apply Java design patterns in real-world projects to enhance scalability, flexibility, and reusability. By the end, participants will be able to design cleaner architectures and implement more maintainable and future-ready Java applications.