Object-Oriented Programming with Java Roadmap

Master the principles and techniques of Object-Oriented Programming (OOP) using the Java language.

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Stage Main Topic Content & Learning Activities Objectives & Deliverables
1 Java Fundamentals
  • Syntax, Variables, Data Types
  • Operators
  • Control Flow
  • Methods
  • Arrays
  • Build a solid Java foundation.
2 Introduction to OOP
  • What is an Object?
  • What is a Class?
  • The Four Pillars of OOP
  • Understand the core concepts and benefits of OOP.
3 Classes and Objects
  • Defining a Class
  • Creating Objects
  • The 'this' Keyword
  • Access Modifiers
  • Static Members
  • Learn to create and use classes and objects.
4 Encapsulation
  • Data Hiding
  • Getters and Setters
  • Benefits of Encapsulation
  • Protect and manage access to object data.
5 Inheritance
  • The 'extends' Keyword
  • The 'super' Keyword
  • Method Overriding
  • The Object Class
  • Reuse and extend code through inheritance.
6 Polymorphism
  • Method Overloading
  • Method Overriding
  • Upcasting and Downcasting
  • Write flexible and adaptable code.
7 Abstraction
  • Abstract Class
  • Interface
  • Difference between Abstract Class and Interface
  • Hide complexity and define contracts.
8 Advanced OOP Concepts
  • Composition, Aggregation, Association
  • Coupling and Cohesion
  • The 'final' Keyword
  • Exception Handling
  • Explore design aspects and advanced features.
9 Java Collections & OOP
  • Understanding the Hierarchy
  • Polymorphism with Collections
  • Generics
  • Apply OOP principles when working with collections.
10 SOLID Principles
  • SRP - Single Responsibility Principle
  • OCP - Open/Closed Principle
  • LSP - Liskov Substitution Principle
  • ISP - Interface Segregation Principle
  • DIP - Dependency Inversion Principle
  • Learn the principles of good object-oriented design.
11 Design Patterns
  • Introduction to Design Patterns
  • Creational Patterns (Singleton, Factory)
  • Structural Patterns (Adapter, Decorator)
  • Behavioral Patterns (Observer, Strategy)
  • Apply proven solutions to common design problems.

Core Mindsets for Object-Oriented Programming with Java

1. Everything is an Object

Embrace Java's core philosophy. Think about how to model real-world concepts, data, and behaviors into self-contained objects.

2. Abstraction is an Ally

Focus on designing clean interfaces and abstract classes. Hide implementation details to create flexible, loosely-coupled components.

3. The JVM is Your Foundation

Understand that your code runs on the Java Virtual Machine (JVM). This impacts memory management (garbage collection), platform independence, and performance.

4. Leverage the Ecosystem

Java's power lies in its vast ecosystem of libraries, frameworks (like Spring), and community support. Don't reinvent the wheel.