Posts about Oops Principles, Oops concepts in order to design strong object-oriented design for J2EE Web Applications.
All Oops concepts are explained with real-world examples, lots of source code with an explanation, applicability, class diagrams etc.

Oops Concepts

• Abstraction in Java with Example
• Encapsulation in Java with Example
• Inheritance in Java with Example
• Polymorphism in Java with Example
• Composition in Java with Example
• Aggregation in Java with Example
• Association in Java with Example
• Cohesion in Java with Example
• Coupling in Java with Example
• Delegation in Java with Example

Source code is available on GitHub : Object Oriented Design Guide

Design Principles(SOLID Oops Principles)

• Single Responsibility Principle
• Open Closed Principle
• Liskov's Substitution Principle
• Interface Segregation Principle
• Dependency Inversion Principle

Source code is available on GitHub : Design Principles