{"provider_name":"Hatena Blog","title":"\u30b7\u30ea\u30a2\u30eb\u30ca\u30f3\u30d0\u30fc\u7684\u306a\u4f55\u304b\u3092\u8fd4\u3059\u9759\u7684\u30af\u30e9\u30b9\u3092\u4f5c\u3063\u3066\u307f\u305f","image_url":null,"type":"rich","blog_url":"https://rdera.hatenadiary.org/","author_url":"https://blog.hatena.ne.jp/rdera/","author_name":"rdera","url":"https://rdera.hatenadiary.org/entry/20090327/1238122570","published":"2009-03-27 11:56:10","width":"100%","categories":["java"],"blog_title":"rdera\u30ed\u30b0","height":"190","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Frdera.hatenadiary.org%2Fentry%2F20090327%2F1238122570\" title=\"\u30b7\u30ea\u30a2\u30eb\u30ca\u30f3\u30d0\u30fc\u7684\u306a\u4f55\u304b\u3092\u8fd4\u3059\u9759\u7684\u30af\u30e9\u30b9\u3092\u4f5c\u3063\u3066\u307f\u305f - rdera\u30ed\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","description":"import java.util.Calendar; public class Selial { private static int num; private static String day = \"\"; private Selial() {} synchronized private static String getDay() { Calendar d = Calendar.getInstance(); StringBuilder sb = new StringBuilder(8); sb.append(d.get(Calendar.YEAR)); sb.append(String.f\u2026"}