eller https://blog.hatena.ne.jp/eller/ Kengo's blog https://blog.kengo-toda.jp/ プログラミング 3~4 years ago, I divided code into some classes which has own responsibility. Now, I have got another option, dividing into some classes which has 1 processing. 1 class which has 1 responsibility and 2 processing Imagine that how to code a method which returns true if given String contains letter. W… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.kengo-toda.jp%2Fentry%2F2013%2F01%2F31%2F003113" title="When we need to divide small class into 2 classes - Kengo&#39;s blog" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2013-01-31 00:31:13 rich https://blog.kengo-toda.jp/entry/2013/01/31/003113 1.0 100%