{"id":31748,"date":"2023-01-08T09:34:50","date_gmt":"2023-01-14T15:32:38","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/java%e7%9a%84%e5%b8%b8%e9%87%8f%e5%ae%9a%e4%b9%89\/"},"modified":"2024-04-29T09:02:31","modified_gmt":"2024-04-29T01:02:31","slug":"java%e7%9a%84%e5%b8%b8%e9%87%8f%e5%ae%9a%e4%b9%89","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/java%e7%9a%84%e5%b8%b8%e9%87%8f%e5%ae%9a%e4%b9%89\/","title":{"rendered":"Java\u7684\u5e38\u91cf\u5b9a\u4e49"},"content":{"rendered":"

\u5728Java\u4e2d\uff0c\u6709\u4e09\u79cd\u65b9\u6cd5\u53ef\u4ee5\u7edf\u4e00\u7ba1\u7406\u5e38\u91cf\u3002
\n\u4f60\u77e5\u9053\u9664\u4e86\u5c5e\u6027\u4e4b\u5916\uff0c\u5e94\u8be5\u7528\u54ea\u4e00\u79cd\u6765\u5b9e\u73b0\u5462\uff1f
\n1. \u5e38\u91cf\u63a5\u53e3
\n2. \u5e38\u91cf\u7c7b
\n3. \u679a\u4e3e\u7c7b<\/p>\n

\u8bf7\u4f7f\u7528enum\u3002\u867d\u7136\u542c\u8bf4\u8fc7\u5728\u63a5\u53e3\u4e2d\u5b9a\u4e49\uff0c\u4f46\u4ece\u672a\u89c1\u8fc7\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5b9e\u73b0\u4e86\u5e38\u91cf\u63a5\u53e3\u7684\u793a\u4f8b\uff08\u6458\u81ea\u300aEffective Java \u7b2c2\u7248\u300b\u7b2c19\u6761\uff09\u3002<\/h5>\n
public interface PhysicalConstants {\r\n    \/\/ \u30a2\u30dc\u30ac\u30c9\u30ed\u5b9a\u6570\uff081\/mol\uff09\r\n    static final double AVOGADROS_NUMBER = 6.02214199e23;\r\n    \/\/ \u30dc\u30eb\u30c4\u30de\u30f3\u5b9a\u6570\uff08J\/K\uff09\r\n    static final double BOLTZMANN_CONSTANT = 1.3806503e-23;\r\n    \/\/ \u96fb\u5b50\u306e\u8cea\u91cf\uff08kg\uff09\r\n    static final double ELECTRON_MASS = 9.10938188e-31;\r\n}\r\n<\/code><\/pre>\n
    implement\u3057\u3066\u5229\u7528\u3059\u308b\u3002<\/ul>\n
    \u4ece\u6ca1\u89c1\u8fc7\u3002\u3002\u5982\u679c\u589e\u52a0\u4e86\u5e38\u91cf\u63a5\u53e3\uff0c\u5c31\u9700\u8981\u5b9e\u73b0\u6240\u9700\u6570\u91cf\u7684\u63a5\u53e3\uff1f
    \n\u53ef\u80fd\u4f1a\u53d1\u751f\u91cd\u540d\u7684\u60c5\u51b5\u3002\u3002\u8026\u5408\u5ea6\u5f88\u9ad8\u3002\u4e0d\u662f\u6b63\u786e\u7684\u63a5\u53e3\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n
    \u4ee5\u5b9e\u73b0\u5b9a\u6570\u7c7b\u4e3a\u4f8b<\/h5>\n
    public final class Constants {\r\n    public static final String PATH_SEP = \"\/\";\r\n    public static final String LINE_SEP = \"\u00a5n\";\r\n    private Constants (){}\r\n}\r\n<\/code><\/pre>\n
      \n
    • \n
        final\u306b\u3057\u3066\u7d99\u627f\u4e0d\u53ef\u3002<\/ul>\n<\/li>\n<\/ul>\n
         <\/p>\n
          private\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u4e0d\u53ef\u3002<\/ul>\n
          \u5982\u679c\u4e00\u5f00\u59cb\u521b\u5efa\u7684\u4eba\u5c06\u7c7b\u540d\u547d\u540d\u4e3aConstants\u4e4b\u7c7b\u7684\u8bdd\uff0c\u5c31\u4f1a\u5bfc\u81f4\u5176\u53d8\u5f97\u5e9e\u5927\u3002
          \n\u5927\u81f4\u4e0a\u90fd\u662f\u8fd9\u6837\u7684\u3002<\/p>\n
          \u4ee5\u679a\u4e3e\uff08enum\uff09\u7c7b\u5b9e\u73b0\u7684\u4f8b\u5b50<\/h5>\n
          public enum ExamEnum {\r\n    SUNDAY(0),\r\n    MONDAY(1),\r\n    TUESDAY(3),\r\n    WEDNESDAY(4),\r\n    THURSDAY(5),\r\n    FRIDAY(6),\r\n    SATURDAY(7);\r\n}\r\n\r\n<\/code><\/pre>\n
            \n
          • \n
              \u30b7\u30f3\u30b0\u30eb\u30c8\u30f3\u5f37\u5236<\/ul>\n<\/li>\n<\/ul>\n
               <\/p>\n
                \n
              • \n
                  \u578b\u5b89\u5168\u306b\u3067\u304d\u308b<\/ul>\n<\/li>\n<\/ul>\n
                   <\/p>\n
                    \n
                  • \n
                      enum\u30af\u30e9\u30b9\u3067\u7528\u610f\u3055\u308c\u305f\u30e1\u30bd\u30c3\u30c9\u4f7f\u3063\u3066\u8272\u3005<\/ul>\n<\/li>\n<\/ul>\n
                       <\/p>\n
                        \u9806\u756a\u3082\u4fdd\u6301<\/ul>\n
                        \u4ee5\u524d\uff0c\u5728\u67d0\u4e2a\u5730\u65b9\u542c\u5230\u300c\u5e38\u91cf\u7c7b\uff08\u7b11\uff09\u300d\u8fd9\u4e2a\u8bcd\uff0c\u5f00\u59cb\u4f7f\u7528\u4e86\u8d77\u6765\u3002\u4e0e\u5176\u4ed6\u65b9\u6cd5\u76f8\u6bd4\uff0c\u9664\u4e86\u5b9e\u65bd\u4ee3\u7801\u91cf\u5916\u6ca1\u6709\u5176\u4ed6\u7f3a\u70b9\uff0c\u6240\u4ee5\u4e00\u76f4\u5728\u4f7f\u7528\u3002\u800c\u4e14\uff0c\u4e00\u65e6\u5199\u597d\u4e86\u4ee3\u7801\uff0c\u57fa\u672c\u4e0a\u53ef\u4ee5\u901a\u8fc7\u590d\u5236\u7c98\u8d34\u5b9e\u73b0\u4e00\u4e9b\u57fa\u672c\u64cd\u4f5c\u3002\u56e0\u4e3a\u5728\u7f51\u4e0a\u53ef\u4ee5\u627e\u5230\u5f88\u591a\u597d\u7528\u7684\u65b9\u6cd5\uff0c\u6240\u4ee5\u5728\u8fd9\u91cc\u4e0d\u518d\u8d58\u8ff0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
                        \u5728Java\u4e2d\uff0c\u6709\u4e09\u79cd\u65b9\u6cd5\u53ef\u4ee5\u7edf\u4e00\u7ba1\u7406\u5e38\u91cf\u3002 \u4f60\u77e5\u9053\u9664\u4e86\u5c5e\u6027\u4e4b\u5916\uff0c\u5e94\u8be5\u7528\u54ea\u4e00\u79cd\u6765\u5b9e\u73b0\u5462\uff1f 1. \u5e38\u91cf\u63a5\u53e3 2.  […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-31748","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nJava\u7684\u5e38\u91cf\u5b9a\u4e49 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/java\u7684\u5e38\u91cf\u5b9a\u4e49\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java\u7684\u5e38\u91cf\u5b9a\u4e49\" \/>\n<meta property=\"og:description\" content=\"\u5728Java\u4e2d\uff0c\u6709\u4e09\u79cd\u65b9\u6cd5\u53ef\u4ee5\u7edf\u4e00\u7ba1\u7406\u5e38\u91cf\u3002 \u4f60\u77e5\u9053\u9664\u4e86\u5c5e\u6027\u4e4b\u5916\uff0c\u5e94\u8be5\u7528\u54ea\u4e00\u79cd\u6765\u5b9e\u73b0\u5462\uff1f 1. \u5e38\u91cf\u63a5\u53e3 2. 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