{"blog_url":"https://kouta1612.hatenablog.com/","width":"100%","provider_name":"Hatena Blog","published":"2018-03-30 23:55:03","author_url":"https://blog.hatena.ne.jp/kouta1612/","url":"https://kouta1612.hatenablog.com/entry/2018/03/30/235503","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkouta1612.hatenablog.com%2Fentry%2F2018%2F03%2F30%2F235503\" title=\"\u6587\u5b57\u5217\u3092\u9006\u9806\u306b\u3059\u308b - Java \u7af6\u30d7\u30ed\u5b66\u7fd2\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"\u6587\u5b57\u5217\u3092\u9006\u9806\u306b\u3059\u308b","categories":[],"provider_url":"https://hatena.blog","height":"190","version":"1.0","author_name":"kouta1612","blog_title":"Java \u7af6\u30d7\u30ed\u5b66\u7fd2\u65e5\u8a18","image_url":null,"description":"String s = \"abcdef\" => \"fedcba\" \u306b\u3059\u308b\u3053\u3068\u304c\u76ee\u6a19\u3067\u3059\u3002 \u666e\u901a\u306b\u914d\u5217\u7528\u610f\u3057\u3066\u30eb\u30fc\u30d7\u56de\u3057\u3066\u884c\u3051\u3070\u4f5c\u308c\u307e\u3059\u3002 public static String reverse(String s, int N) { char[] S = s.toCharArray(); char[] R = new char[N]; for(int i = 0 ; i < N ; i++) { R[N - i - 1] = S[i]; } return String.valueOf(R); } \u3088\u308a\u5b9f\u88c5\u3092\u7c21\u5358\u306b\u3057\u305f\u3051\u308c\u3070 s = new StringBuilder(s).reverse().t\u2026","type":"rich"}