その2です。忙しい方は最後のまとめだけ読まれるとよいと思います。 Ruby vs. Java Myth #2: Ruby feature X makes code unmaintainable Ruby vs. Java Myth #2: Ruby feature X makes code unmaintainable Ruby includes a variety of features that lead to compact, expressive code, e.g. open classes, dynamic evaluation, soft encapsulation rules, easy metaprogramming, and closures. These features demo well, but developers who have not used them