Java Design Patterns: Behavioral Part 1

Use six of the most popular behavioral design patterns—Chain of Responsibility, Command, Interpreter, Iterator, Mediator, and Memento—to write better, more maintainable Java code.

Introduction

• Improve code quality with behavioral design patterns
• What you should know

1. Behavioral Design Patterns

• What is a design pattern?
• Behavioral design patterns

2. The Chain of Responsibility Pattern

• Understanding the Chain of Responsibility pattern
• Implementing a successor chain
• Making a request
• Challenge: The Chain of Responsibility pattern
• Solution: The Chain of Responsibility pattern

3. The Command Pattern

• Understanding the Command pattern
• Creating the components for a Command pattern
• Implementing a complete Command pattern
• Challenge: The Command pattern
• Solution: The Command pattern

4. The Interpreter Pattern

• Understanding the Interpreter pattern
• Creating an interpreter for a language
• Interpreting a variable
• Challenge: The Interpreter pattern
• Solution: The Interpreter pattern

5. The Iterator Pattern

• Understanding the Iterator pattern
• Creating an iterable
• Creating an iterator
• Challenge: The Iterator pattern
• Solution: The Iterator pattern

6. The Mediator Pattern

• Understanding the Mediator pattern
• Avoiding tight coupling between objects
• Creating a mediator object
• Challenge: The Mediator pattern
• Solution: The Mediator pattern

7. The Memento Pattern

• Understanding the Memento pattern
• Restoring an object's state
• Challenge: The Memento pattern
• Solution: The Memento pattern

Conclusion

• Next steps