June 2022
Beginner to intermediate
672 pages
17h 23m
Japanese
Content preview from Head Firstデザインパターン 第2版 ―頭とからだで覚えるデザインパターンの基本
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
私たちはみな、市販のライブラリやフレームワークを使用しています。その
API
を使ってコードを書いてプログラムに
コンパイルし、他の誰かが書いた多くのコードの恩恵を受けます。
Java API
と
API
で使えるすべての機能（ネットワーク、
GUI
、
IO
など）を考えてみましょう。ライブラリやフレームワークは、コンポーネントを選び出して適切に組み込める
開発モデルに大いに役立ちます。しかし、保守性と柔軟性が高く理解しやすい方法で独自のアプリケーションを構築する
には役立ちません。そこで、デザインパターンの登場です。
デザインパターンはコードに直接入り込むのではなく、まずみなさんの頭の中に入り込みます。頭の中に適切に機能す
るパターンの知識をロードすれば、新しい設計にそのパターンを適用し始めることができます。コードが柔軟性のない乱
雑とした状態に悪化しつつあることがわかった時点で、古いコードを書き直すこともできます。
どうやってデザインパターンを使うの？
あなたの脳
デザインパターンを
使って改良された新し
いコード
swim()
display
()
performQuack()
performFly()
setFlyBehavior()
setQuackBehavior()
// OTHER duck-like
methods...
Duck
FlyBehavior flyBehavior;
QuackBehavior quackBe
havior;
<<interface>>
FlyBehavior
fly()
fly() {
// implements ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.