{"published":"2025-05-01 00:00:00","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog1.mammb.com%2Fentry%2F2025%2F05%2F01%2F000000\" title=\"JEP 512: Compact Source Files and Instance Main Methods - A Memorandum\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/N/Naotsugu/20200724/20200724174249.png","blog_url":"https://blog1.mammb.com/","blog_title":"A Memorandum","provider_url":"https://hatena.blog","author_name":"Naotsugu","author_url":"https://blog.hatena.ne.jp/Naotsugu/","title":"JEP 512: Compact Source Files and Instance Main Methods","url":"https://blog1.mammb.com/entry/2025/05/01/000000","type":"rich","description":"\u306f\u3058\u3081\u306b JEP 512: \u30b3\u30f3\u30d1\u30af\u30c8\u30fb\u30bd\u30fc\u30b9\u30fb\u30d5\u30a1\u30a4\u30eb\u3068\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30fb\u30e1\u30a4\u30f3\u30fb\u30e1\u30bd\u30c3\u30c9 \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30fb\u30e1\u30a4\u30f3\u30fb\u30e1\u30bd\u30c3\u30c9 \u30b3\u30f3\u30d1\u30af\u30c8\u30bd\u30fc\u30b9\u30d5\u30a1\u30a4\u30eb \u30b3\u30f3\u30bd\u30fc\u30eb\u30fb\u30a4\u30f3\u30bf\u30e9\u30af\u30b7\u30e7\u30f3 blog1.mammb.com \u306f\u3058\u3081\u306b \u4f1d\u7d71\u7684\u306a Hello,World \u30d7\u30ed\u30b0\u30e9\u30e0\u306f public class HelloWorld { public static void main(String[] args) { System.out.println(\"Hello, World!\"); } } JDK 25 \u3067\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 void main() { IO.println(\"Hello,\u2026","provider_name":"Hatena Blog","version":"1.0","categories":["Java"],"height":"190","width":"100%"}