{"author_name":"sho_ishi","blog_title":"\u3057\u3087\u3046\u305f\u308d\u30fc\u30d6\u30ed\u30b0","author_url":"https://blog.hatena.ne.jp/sho_ishi/","type":"rich","categories":["\u958b\u767a"],"image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsho-ishi.hateblo.jp%2Fentry%2F20090513%2F1242225724\" title=\"Java\u306e\u8ca0\u306e\u6570\u306e\u5207\u308a\u6368\u3066\u30fb\u56db\u6368\u4e94\u5165\u306b\u306f\u3054\u6ce8\u610f\uff01 - \u3057\u3087\u3046\u305f\u308d\u30fc\u30d6\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>","published":"2009-05-13 23:42:04","title":"Java\u306e\u8ca0\u306e\u6570\u306e\u5207\u308a\u6368\u3066\u30fb\u56db\u6368\u4e94\u5165\u306b\u306f\u3054\u6ce8\u610f\uff01","description":"\u5207\u308a\u6368\u3066\u3084\u56db\u6368\u4e94\u5165\u306f\u57fa\u672c\u7684\u306b\u6b63\u306e\u6570\u3067\u3084\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002\u3067\u3001\u4eca\u56de\u696d\u52d9\u3067\u8ca0\u306e\u6570\u306e\u5207\u308a\u6368\u3066\u30fb\u56db\u6368\u4e94\u5165\u3092\u8abf\u3079\u3066\u3044\u3066\u3001Java\u3067\u306f\u3084\u308a\u65b9\u304c2\u901a\u308a\u3042\u308a\u3001\u3057\u304b\u3082\u305d\u308c\u305e\u308c\u3067\u5024\u304c\u5909\u308f\u3063\u3066\u3057\u307e\u3046\u3068\u3044\u3046\u554f\u984c\u306b\u3076\u3061\u5f53\u305f\u308a\u307e\u3057\u305f\u3002\u4ee5\u4e0b\u306b\u3001\u5207\u308a\u6368\u3066\u304a\u3088\u3073\u56db\u6368\u4e94\u5165\u306e\u66f8\u304d\u65b9\u3092\u793a\u3057\u307e\u3059\u3002(\u5024\u306f\u4e00\u5f8b5.5\u3068\u3057\u307e\u3059\u3002) \u5207\u308a\u6368\u3066 Math\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408 Math.floor(5.5); BigDecimal\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408 new BigDecimal(5.5).setScale(0, BigDecimal.ROUND_DOWN).doubleValue(); \u56db\u6368\u4e94\u5165 Math\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408 Math.roun\u2026","provider_name":"Hatena Blog","blog_url":"https://sho-ishi.hateblo.jp/","url":"https://sho-ishi.hateblo.jp/entry/20090513/1242225724","provider_url":"https://hatena.blog","height":"190","width":"100%","version":"1.0"}