{"blog_url":"https://chiroito.hatenablog.jp/","provider_name":"Hatena Blog","type":"rich","author_url":"https://blog.hatena.ne.jp/chiroito/","description":"Java \u306732\u6841\u306e16\u9032\u6570\u306e\u4e71\u6570\u3092\u7c21\u5358\u306b\u4f5c\u308a\u305f\u3044\u306a\u3068\u601d\u3063\u305f\u306e\u3067\u4f5c\u3063\u3066\u307f\u305f\u30e1\u30e2\u3002 byte[] bytes = new byte[16]; SecureRandom random = new SecureRandom(); random.nextBytes(bytes); String hexString = HexFormat.of().formatHex(bytes); \u3053\u308c\u3067\u5909\u6570 hexString \u306b\u306f 7ffda83291c2b5e47db3557138ef7799 \u306e\u3088\u3046\u306a\u6587\u5b57\u5217\u304c\u5165\u308a\u307e\u3059\u3002 16\u9032\u6570\u306e 1 \u6841\u306f 4 bit \u3067\u3001byte \u306f 8 bit\u3067\u3059\u3002\u306a\u306e\u3067\u3001\u6b32\u3057\u3044\u6841\u306e\u534a\u5206\u2026","version":"1.0","published":"2024-01-18 10:21:33","width":"100%","categories":["Java"],"height":"190","blog_title":"#chiroito \u2019s blog","provider_url":"https://hatena.blog","author_name":"chiroito","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fchiroito.hatenablog.jp%2Fentry%2F2024%2F01%2F18%2F102133\" title=\"Java\u306716\u9032\u6570\u306e\u4e71\u6570\u3092\u751f\u6210 - #chiroito \u2019s blog\" 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":null,"title":"Java\u306716\u9032\u6570\u306e\u4e71\u6570\u3092\u751f\u6210","url":"https://chiroito.hatenablog.jp/entry/2024/01/18/102133"}