{"id":1156,"date":"2022-10-24T22:57:05","date_gmt":"2022-10-24T14:57:05","guid":{"rendered":"https:\/\/qaqaq.top\/?p=1156"},"modified":"2022-11-27T12:39:49","modified_gmt":"2022-11-27T04:39:49","slug":"%e6%9e%9a%e4%b8%be%e7%b1%bb%e4%b8%8e%e6%b3%a8%e8%a7%a3-%e6%9e%9a%e4%b8%be%e7%b1%bb%e7%9a%84%e7%90%86%e8%a7%a3%e3%80%81%e8%87%aa%e5%ae%9a%e4%b9%89%e6%9e%9a%e4%b8%be%e7%b1%bb%e3%80%81%e4%bd%bf%e7%94%a8e","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=1156","title":{"rendered":"\u679a\u4e3e\u7c7b\u4e0e\u6ce8\u89e3-\u679a\u4e3e\u7c7b\u7684\u7406\u89e3\u3001\u81ea\u5b9a\u4e49\u679a\u4e3e\u7c7b\u3001\u4f7f\u7528enum\u5173\u952e\u5b57\u5b9a\u4e49\u679a\u4e3e\u7c7b\u3001Enum\u7c7b\u4e2d\u7684\u5e38\u7528\u65b9\u6cd5\u3001\u4f7f\u7528enum\u5173\u952e\u5b57\u5b9a\u4e49\u7684\u679a\u4e3e\u7c7b\u5b9e\u73b0\u63a5\u53e3"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>package top.qaqaq.java.P498;\r\n\r\n\/**\r\n * \u4e00\u3001\u679a\u4e3e\u7c7b\u7684\u4f7f\u7528\r\n * 1.\u679a\u4e3e\u7c7b\u7684\u7406\u89e3\uff1a\u7c7b\u7684\u5bf9\u8c61\u53ea\u6709\u6709\u9650\u4e2a\uff0c\u786e\u5b9a\u7684\u3002\u6211\u4eec\u79f0\u6b64\u7c7b\u4e3a\u679a\u4e3e\u7c7b\r\n * 2.\u5f53\u9700\u8981\u5b9a\u4e49\u4e00\u7ec4\u5e38\u91cf\u65f6\uff0c\u5f3a\u70c8\u5efa\u8bae\u4f7f\u7528\u679a\u4e3e\u7c7b\r\n * 3.\u5982\u679c\u679a\u4e3e\u7c7b\u4e2d\u53ea\u6709\u4e00\u4e2a\u5bf9\u8c61\uff0c\u5219\u53ef\u4ee5\u4f5c\u4e3a\u5355\u4f8b\u6a21\u5f0f\u7684\u5b9e\u73b0\u65b9\u5f0f\u3002\r\n *\r\n * \u4e8c\u3001\u5982\u4f55\u5b9a\u4e49\u679a\u4e3e\u7c7b\r\n * \u65b9\u5f0f\u4e00\uff1ajdk5.0\u4e4b\u524d\uff0c\u81ea\u5b9a\u4e49\u679a\u4e3e\u7c7b\r\n * \u65b9\u5f0f\u4e8c\uff1ajdk5.0\uff0c\u53ef\u4ee5\u4f7f\u7528enum\u5173\u952e\u5b57\u5b9a\u4e49\u679a\u4e3e\u7c7b\r\n *\r\n * \u4e09\u3001Enum\u7c7b\u4e2d\u7684\u5e38\u7528\u65b9\u6cd5\r\n *  \uf0d8 values()\u65b9\u6cd5\uff1a\u8fd4\u56de\u679a\u4e3e\u7c7b\u578b\u7684\u5bf9\u8c61\u6570\u7ec4\u3002\u8be5\u65b9\u6cd5\u53ef\u4ee5\u5f88\u65b9\u4fbf\u5730\u904d\u5386\u6240\u6709\u7684\u679a\u4e3e\u503c\u3002\r\n *  \uf0d8 valueOf(String str)\uff1a\u53ef\u4ee5\u628a\u4e00\u4e2a\u5b57\u7b26\u4e32\u8f6c\u4e3a\u5bf9\u5e94\u7684\u679a\u4e3e\u7c7b\u5bf9\u8c61\u3002\u8981\u6c42\u5b57\u7b26\u4e32\u5fc5\u987b\u662f\u679a\u4e3e\u7c7b\u5bf9\u8c61\u7684\u201c\u540d\u5b57\u201d\u3002\u5982\u4e0d\u662f\uff0c\u4f1a\u6709\u8fd0\u884c\u65f6\u5f02\u5e38\uff1aIllegalArgumentException\u3002\r\n *  \uf0d8 toString()\uff1a\u8fd4\u56de\u5f53\u524d\u679a\u4e3e\u7c7b\u5bf9\u8c61\u5e38\u91cf\u7684\u540d\u79f0\r\n *\r\n *  \u56db\u3001\u4f7f\u7528enum\u5173\u952e\u5b57\u5b9a\u4e49\u7684\u679a\u4e3e\u7c7b\u5b9e\u73b0\u63a5\u53e3\u7684\u60c5\u51b5\r\n *      \u60c5\u51b5\u4e00\uff1a\u5b9e\u73b0\u63a5\u53e3\uff0c\u5728enum\u7c7b\u4e2d\u5b9e\u73b0\u62bd\u8c61\u65b9\u6cd5\r\n *      \u60c5\u51b5\u4e8c\uff1a\u8ba9\u679a\u4e3e\u7c7b\u7684\u5bf9\u8c61\u5206\u522b\u5b9e\u73b0\u63a5\u53e3\u4e2d\u7684\u62bd\u8c61\u65b9\u6cd5\r\n *\r\n * @author RichieZhang\r\n * @create 2022-10-24 \u4e0b\u5348 8:52\r\n *\/\r\npublic class SeasonTest {\r\n\r\n    public static void main(String&#91;] args) {\r\n\r\n        Season spring = Season.SPRING;\r\n        System.out.println(spring);\r\n    }\r\n\r\n}\r\n\r\n\/\/\u81ea\u5b9a\u4e49\u679a\u4e3e\u7c7b\r\nclass Season{\r\n    \/\/1.\u58f0\u660eSeason\u5bf9\u8c61\u7684\u5c5e\u6027:private final\u4fee\u9970\r\n    private final String seasonName;\r\n    private final String seasonDesc;\r\n\r\n    \/\/2.\u79c1\u6709\u5316\u7c7b\u7684\u6784\u9020\u5668\r\n    private  Season(String seasonName, String seasonDesc){\r\n        this.seasonName = seasonName;\r\n        this.seasonDesc = seasonDesc;\r\n    }\r\n\r\n    \/\/3.\u63d0\u4f9b\u5f53\u524d\u679a\u4e3e\u7c7b\u7684\u591a\u4e2a\u5bf9\u8c61\uff1apublic static final\r\n    public static final Season SPRING = new Season(\"\u6625\u5929\",\"\u6625\u6696\u82b1\u5f00\");\r\n    public static final Season SUMMER = new Season(\"\u590f\u5929\",\"\u590f\u65e5\u708e\u708e\");\r\n    public static final Season AUTUMN = new Season(\"\u79cb\u5929\",\"\u79cb\u9ad8\u6c14\u723d\");\r\n    public static final Season WINTER = new Season(\"\u51ac\u5929\",\"\u51b0\u5929\u96ea\u5730\");\r\n\r\n    \/\/4.\u5176\u4ed6\u8bc9\u6c421\uff1b\u83b7\u53d6\u679a\u4e3e\u7c7b\u5bf9\u8c61\u7684\u5c5e\u6027\r\n\r\n    public String getSeasonName() {\r\n        return seasonName;\r\n    }\r\n\r\n    public String getSeasonDesc() {\r\n        return seasonDesc;\r\n    }\r\n\r\n    \/\/4.\u5176\u4ed6\u8bc9\u6c422\uff1b\u63d0\u4f9btoString()\r\n\r\n    @Override\r\n    public String toString() {\r\n        return \"Season{\" +\r\n                \"seasonName='\" + seasonName + '\\'' +\r\n                \", seasonDesc='\" + seasonDesc + '\\'' +\r\n                '}';\r\n    }\r\n}\r\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>package top.qaqaq.java.P498;\r\n\r\n\/**\r\n * \u4f7f\u7528enum\u5173\u952e\u5b57\u5b9a\u4e49\u679a\u4e3e\u7c7b\r\n * \u8bf4\u660e\uff1a\u5b9a\u4e49\u7684\u679a\u4e3e\u7c7b\u9ed8\u8ba4\u7ee7\u627f\u4e8ejava.lang.Enum\u7c7b\r\n *\r\n *\r\n * @author RichieZhang\r\n * @create 2022-10-24 \u4e0b\u5348 9:18\r\n *\/\r\npublic class SeasonTest1 {\r\n\r\n    public static void main(String&#91;] args) {\r\n        Season1 summer = Season1.SUMMER;\r\n        \/\/toString():\r\n        System.out.println(summer.toString());\r\n\r\n\/\/        System.out.println(Season1.class.getSuperclass());\r\n        System.out.println(\"*****************\");\r\n\r\n        \/\/values():\r\n        Season1&#91;] values = Season1.values();\r\n        for (int i = 0; i &lt; values.length; i++){\r\n            System.out.println(values&#91;i]);\r\n            values&#91;i].show();\r\n        }\r\n        System.out.println(\"*****************\");\r\n        Thread.State&#91;] values1 = Thread.State.values();\r\n        for (int i = 0; i &lt; values1.length; i++) {\r\n            System.out.println(values1&#91;i]);\r\n\r\n        }\r\n\r\n        \/\/valueOf(String objName):\u8fd4\u56de\u679a\u4e3e\u7c7b\u4e2d\u5bf9\u8c61\u540d\u662fobjName\u7684\u5bf9\u8c61\u3002\r\n        Season1 winter = Season1.valueOf(\"WINTER\");\r\n        \/\/\u5982\u679c\u6ca1\u6709objName\u7684\u679a\u4e3e\u7c7b\u5bf9\u8c61\uff0c\u5219\u629b\u5f02\u5e38\uff1aIllegalArgumentException\r\n\/\/        Season1 winter = Season1.valueOf(\"WINTER1\");\r\n        System.out.println(winter);\r\n        winter.show();\r\n    }\r\n}\r\n\r\ninterface Info{\r\n    void show();\r\n}\r\n\r\n\/\/\u4f7f\u7528enum\u5173\u952e\u5b57\u679a\u4e3e\u7c7b\r\nenum Season1 implements Info{\r\n\r\n    \/\/1.\u63d0\u4f9b\u5f53\u524d\u679a\u4e3e\u7c7b\u7684\u5bf9\u8c61\uff0c\u591a\u4e2a\u5bf9\u8c61\u4e4b\u95f4\u7528\",\"\u9694\u5f00\uff0c\u672b\u5c3e\u5bf9\u8c61\";\"\u7ed3\u675f\r\n    SPRING(\"\u6625\u5929\",\"\u6625\u6696\u82b1\u5f00\"){\r\n        @Override\r\n        public void show() {\r\n            System.out.println(\"\u6625\u5929\u5728\u54ea\u91cc\uff1f\");\r\n        }\r\n    },\r\n    SUMMER(\"\u590f\u5929\",\"\u590f\u65e5\u708e\u708e\"){\r\n        @Override\r\n        public void show() {\r\n            System.out.println(\"\u5b81\u590f\");\r\n        }\r\n    },\r\n    AUTUMN(\"\u79cb\u5929\",\"\u79cb\u9ad8\u6c14\u723d\"){\r\n        @Override\r\n        public void show() {\r\n            System.out.println(\"\u79cb\u5929\u4e0d\u56de\u6765\");\r\n        }\r\n    },\r\n    WINTER(\"\u51ac\u5929\",\"\u51b0\u5929\u96ea\u5730\"){\r\n        @Override\r\n        public void show() {\r\n            System.out.println(\"\u5927\u7ea6\u5728\u51ac\u5b63\");\r\n        }\r\n    };\r\n\r\n    \/\/2.\u58f0\u660eSeason\u5bf9\u8c61\u7684\u5c5e\u6027:private final\u4fee\u9970\r\n    private final String seasonName;\r\n    private final String seasonDesc;\r\n\r\n    \/\/3.\u79c1\u6709\u5316\u7c7b\u7684\u6784\u9020\u5668\r\n    private  Season1(String seasonName, String seasonDesc){\r\n        this.seasonName = seasonName;\r\n        this.seasonDesc = seasonDesc;\r\n    }\r\n\r\n    \/\/4.\u5176\u4ed6\u8bc9\u6c421\uff1b\u83b7\u53d6\u679a\u4e3e\u7c7b\u5bf9\u8c61\u7684\u5c5e\u6027\r\n\r\n    public String getSeasonName() {\r\n        return seasonName;\r\n    }\r\n\r\n    public String getSeasonDesc() {\r\n        return seasonDesc;\r\n    }\r\n\r\n    \/\/4.\u5176\u4ed6\u8bc9\u6c422\uff1b\u63d0\u4f9btoString()\r\n\r\n\/\/    @Override\r\n\/\/    public String toString() {\r\n\/\/        return \"Season{\" +\r\n\/\/                \"seasonName='\" + seasonName + '\\'' +\r\n\/\/                \", seasonDesc='\" + seasonDesc + '\\'' +\r\n\/\/                '}';\r\n\/\/    }\r\n\r\n\/\/    @Override\r\n\/\/    public void show() {\r\n\/\/        System.out.println(\"\u8fd9\u662f\u4e00\u4e2a\u5b63\u8282\");\r\n\/\/    }\r\n}\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[46],"class_list":["post-1156","post","type-post","status-publish","format-standard","hentry","category-java-code","tag-java"],"_links":{"self":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/1156"}],"collection":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1156"}],"version-history":[{"count":1,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/1156\/revisions"}],"predecessor-version":[{"id":1157,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/1156\/revisions\/1157"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}