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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382
10
章
Mighty Gumball
社との出会い
ガムボールマシンはハイテク化しています。確かに、大手
メーカーはキャンディマシンに
CPU
を組み込めば、売上の増
加、ネットワーク経由での在庫監視、顧客満足度の測定をより
正確に行えることに気付いています。
しかし、メーカーはガムボールマシンのエキスパートであっ
てソフトウェア開発者ではないので、あなたの助けを求めてき
ました。
Jaw
（ 顎 ）に よ る 成 功
va
少なくともこれはメーカーの言
い分です。思うに、メーカーは
単に
1800
年代の技術に飽きて、
仕事をより刺激的なものにする
方法を探す必要があったのです。
ガムボールマシンのコントローラはこのように動作する必要があると、我々は考え
ています。これを
Java
で実装していただけないでしょうか。将来、さらに動作を
追加する可能性があるので、できるだけ柔軟で保守しやすい設計にしてください。
−
Mighty Gumball
エンジニア
ガムボール
>
0
ガムボール
なし
25
セント
受領
25
セント
を投入する
25
セントを
取り出す
ハンドルを回す
25
セント
未受領
ガムボール
を出す
ガムボール
販売
ガムボール
=0
ガムボールマシンが
半分空になることは
ありません
you are here
383
10
章
State
パターン
オフィス
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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.