Head First Design Patterns, 2nd Edition

Table of Contents (the real thing)

• Intro

  Your brain on Design Patterns. Here you are trying to learn something, while here your brain is doing you a favor by making sure the learning doesn’t stick. Your brain’s thinking, “Better leave room for more important things, like which wild animals to avoid and whether naked snowboarding is a bad idea.” So how do you trick your brain into thinking that your life depends on knowing Design Patterns?

  • Who is this book for?

  • We know what you’re thinking.

  • And we know what your brain is thinking.

  • We think of a “Head First” reader as a learner.

  • Metacognition: thinking about thinking

  • Here’s what WE did

  • Here’s what YOU can do to bend your brain into submission

  • Read Me

  • Tech Reviewers

  • Acknowledgments

• 1 Welcome to Design Patterns: Intro to Design Patterns

  Someone has already solved your problems. In this chapter, you’ll learn why (and how) you can exploit the wisdom and lessons learned by other developers who’ve been down the same design problem road and survived the trip. Before we’re done, we’ll look at the use and benefits of design patterns, look at some key object-oriented (OO) design principles, and walk through an example of how one pattern works. The best way to use patterns is to load your brain with them and then recognize places in your designs and existing applications where you can apply them. Instead of code reuse, with patterns you get experience reuse.

  • It started with a simple SimUDuck app

  • But now we need the ducks to FLY

  • But something ...