{"id":4022,"date":"2018-07-08T09:12:03","date_gmt":"2018-07-08T01:12:03","guid":{"rendered":"https:\/\/ixyzero.com\/blog\/?p=4022"},"modified":"2018-07-08T09:12:03","modified_gmt":"2018-07-08T01:12:03","slug":"java%e6%9e%9a%e4%b8%be%e7%b1%bb%e5%9e%8b%e7%9a%84%e7%90%86%e8%a7%a3%e5%92%8c%e5%ad%a6%e4%b9%a0","status":"publish","type":"post","link":"https:\/\/ixyzero.com\/blog\/archives\/4022.html","title":{"rendered":"Java\u679a\u4e3e\u7c7b\u578b\u7684\u7406\u89e3\u548c\u5b66\u4e60"},"content":{"rendered":"<p>=Start=<\/p>\n<h4 id=\"id-\u6a21\u677f-\u7f18\u7531\uff1a\">\u7f18\u7531\uff1a<\/h4>\n<p>\u4e0d\u65ad\u8865\u5145\u5b66\u4e60Java\u57fa\u7840\u77e5\u8bc6\u3002<\/p>\n<h4 id=\"id-\u6a21\u677f-\u6b63\u6587\uff1a\">\u6b63\u6587\uff1a<\/h4>\n<h5 id=\"id-\u6a21\u677f-\u53c2\u8003\u89e3\u7b54\uff1a\">\u53c2\u8003\u89e3\u7b54\uff1a<\/h5>\n<p>\u679a\u4e3e\u7c7b\u578b\u662fJava 5\u4e2d\u65b0\u589e\u7279\u6027\u7684\u4e00\u90e8\u5206\uff0c\u5b83\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u6570\u636e\u7c7b\u578b\uff0c\u4e4b\u6240\u4ee5\u7279\u6b8a\u662f\u56e0\u4e3a\u5b83\u65e2\u662f\u4e00\u79cd\u7c7b(class)\u7c7b\u578b\u5374\u53c8\u6bd4\u7c7b\u7c7b\u578b\u591a\u4e86\u4e9b\u7279\u6b8a\u7684\u7ea6\u675f\uff0c\u4f46\u662f\u8fd9\u4e9b\u7ea6\u675f\u7684\u5b58\u5728\u4e5f\u9020\u5c31\u4e86\u679a\u4e3e\u7c7b\u578b\u7684\u7b80\u6d01\u6027\u3001\u5b89\u5168\u6027\u4ee5\u53ca\u4fbf\u6377\u6027\u3002<\/p>\n<p><strong>\u4e00\u3001\u5728\u6ca1\u6709\u679a\u4e3e\u7c7b\u578b\u65f6\u5b9a\u4e49\u5e38\u91cf\u5e38\u89c1\u7684\u65b9\u5f0f<\/strong><\/p>\n<pre class=\"lang:default decode:true \">public class DayDemo {\r\n    public static final int MONDAY = 1;\r\n    public static final int TUESDAY = 2;\r\n    public static final int WEDNESDAY = 3;\r\n    public static final int THURSDAY = 4;\r\n    public static final int FRIDAY = 5;\r\n    public static final int SATURDAY = 6;\r\n    public static final int SUNDAY = 7;\r\n}<\/pre>\n<p>\u5b58\u5728\u7684\u95ee\u9898\uff1a<\/p>\n<ul>\n<li>\u7c7b\u578b\u5b89\u5168\u95ee\u9898\uff1b<\/li>\n<li>\u7a0b\u5e8f\u53ef\u8bfb\u95ee\u9898\uff1b<\/li>\n<\/ul>\n<p><strong>\u4e8c\u3001\u6709\u4e86\u679a\u4e3e\u7c7b\u578b\u4e4b\u540e\u7684\u5b9a\u4e49\u65b9\u5f0f<\/strong><\/p>\n<pre class=\"lang:default decode:true \">\/\/\u679a\u4e3e\u7c7b\u578b\uff0c\u4f7f\u7528\u5173\u952e\u5b57enum\r\nenum Day {\r\n    MONDAY, TUESDAY, WEDNESDAY,\r\n    THURSDAY, FRIDAY, SATURDAY, SUNDAY\r\n}<\/pre>\n<p><strong>\u4e09\u3001\u679a\u4e3e\u7684\u5e38\u89c1\u65b9\u6cd5<\/strong><\/p>\n<ul>\n<li>values() : \u8fd4\u56deenum\u5b9e\u4f8b\u7684\u6570\u7ec4\uff0c\u800c\u4e14\u8be5\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u4e25\u683c\u4fdd\u6301\u5728enum\u4e2d\u58f0\u660e\u65f6\u7684\u987a\u5e8f\u3002<\/li>\n<li>name() : \u8fd4\u56de\u5b9e\u4f8b\u540d\u3002<\/li>\n<li>ordinal() : \u8fd4\u56de\u5b9e\u4f8b\u58f0\u660e\u65f6\u7684\u6b21\u5e8f\uff0c\u4ece0\u5f00\u59cb\u3002<\/li>\n<li>getDeclaringClass() : \u8fd4\u56de\u5b9e\u4f8b\u6240\u5c5e\u7684enum\u7c7b\u578b\u3002<\/li>\n<li>equals() : \u5224\u65ad\u662f\u5426\u4e3a\u540c\u4e00\u4e2a\u5bf9\u8c61\u3002<\/li>\n<\/ul>\n<p><strong>\u56db\u3001\u4e00\u4e9b\u793a\u4f8b\u4ee3\u7801<\/strong><\/p>\n<pre class=\"lang:default decode:true\">package com.ixyzero.learn.misc;\r\n\r\npublic enum LogType {\r\n    SDK_LOG(\"sdk_log\", \"log.sdk_log\"),\r\n    WEB_LOG(\"web_log\", \"log.web_log\"),\r\n    OP1_LOG(\"op1_log\", \"log.op1_log\");\r\n\r\n    private String code;\r\n    private String desc;\r\n\r\n    \/\/ \u6784\u9020\u65b9\u6cd5\uff1aenum\u7684\u6784\u9020\u65b9\u6cd5\u53ea\u80fd\u88ab\u58f0\u660e\u4e3a private\u6743\u9650 \u6216 \u4e0d\u58f0\u660e\u6743\u9650\r\n    LogType(String code, String desc) {\r\n        this.code = code;\r\n        this.desc = desc;\r\n    }\r\n\r\n    public String getCode() {\r\n        return code;\r\n    }\r\n\r\n    public String getDesc() {\r\n        return desc;\r\n    }\r\n}\r\n<\/pre>\n<p>&amp;<\/p>\n<pre class=\"lang:default decode:true\">package com.ixyzero.learn.misc;\r\n\r\npublic class TestEnum {\r\n    public static void main(String[] args) {\r\n        System.out.println(LogType.SDK_LOG); \/\/ SDK_LOG\r\n        System.out.println(LogType.SDK_LOG.name()); \/\/ SDK_LOG\r\n        System.out.println(LogType.SDK_LOG.getCode()); \/\/ sdk_log\r\n        System.out.println(LogType.SDK_LOG.getDesc()); \/\/ log.sdk_log\r\n\r\n        for (LogType aType: LogType.values()) {\r\n            System.out.print(aType.ordinal());\r\n            System.out.print(\"\\t\");\r\n            System.out.print(aType.name());\r\n            System.out.print(\"\\t\");\r\n            System.out.print(aType.getCode());\r\n            System.out.print(\"\\t\");\r\n            System.out.println(aType.getDesc());\r\n        }\r\n\r\n        \/\/\u76f4\u63a5\u5f15\u7528\r\n        Day day = Day.MONDAY;\r\n        System.out.println(day); \/\/ MONDAY\r\n        System.out.println(day.ordinal()); \/\/ 0\r\n\r\n        System.out.println(Day.THURSDAY); \/\/ THURSDAY\r\n        System.out.println(Day.THURSDAY.name()); \/\/ THURSDAY\r\n        System.out.println(Day.THURSDAY.ordinal()); \/\/ 3\r\n    }\r\n}\r\n\r\n\/\/\u5b9a\u4e49\u679a\u4e3e\u7c7b\u578b\r\nenum Day {\r\n    MONDAY, TUESDAY, WEDNESDAY,\r\n    THURSDAY, FRIDAY, SATURDAY, SUNDAY\r\n}<\/pre>\n<p>&amp;<\/p>\n<pre class=\"lang:default decode:true \">package com.ixyzero.learn.misc;\r\n\r\nenum Season {\r\n    SPRING(1), SUMMER(2), AUTUMN(3), WINTER(4);\r\n\r\n    private int code;\r\n    Season(int code){\r\n        this.code = code;\r\n    }\r\n\r\n    public int getCode(){\r\n        return code;\r\n    }\r\n}\r\npublic class EnumSwitch {\r\n    \/**\r\n     * \u5c06\u82f1\u6587\u7684\u5b63\u8282\u8f6c\u6362\u6210\u4e2d\u6587\u5b63\u8282\r\n     * @param season\r\n     * @return\r\n     *\/\r\n    public String getChineseSeason(Season season){\r\n        StringBuffer result = new StringBuffer();\r\n        switch(season){\r\n            case SPRING :\r\n                result.append(\"[\u4e2d\u6587\uff1a\u6625\u5929\uff0c\u679a\u4e3e\u5e38\u91cf:\" + season.name() + \"\uff0c\u6570\u636e:\" + season.getCode() + \"]\");\r\n                break;\r\n            case AUTUMN :\r\n                result.append(\"[\u4e2d\u6587\uff1a\u79cb\u5929\uff0c\u679a\u4e3e\u5e38\u91cf:\" + season.name() + \"\uff0c\u6570\u636e:\" + season.getCode() + \"]\");\r\n                break;\r\n            case SUMMER :\r\n                result.append(\"[\u4e2d\u6587\uff1a\u590f\u5929\uff0c\u679a\u4e3e\u5e38\u91cf:\" + season.name() + \"\uff0c\u6570\u636e:\" + season.getCode() + \"]\");\r\n                break;\r\n            case WINTER :\r\n                result.append(\"[\u4e2d\u6587\uff1a\u51ac\u5929\uff0c\u679a\u4e3e\u5e38\u91cf:\" + season.name() + \"\uff0c\u6570\u636e:\" + season.getCode() + \"]\");\r\n                break;\r\n            default :\r\n                result.append(\"\u5730\u7403\u6ca1\u6709\u7684\u5b63\u8282 \" + season.name());\r\n                break;\r\n        }\r\n        return result.toString();\r\n    }\r\n\r\n    public void doSomething(){\r\n        for(Season s : Season.values()){\r\n            System.out.println(getChineseSeason(s));\/\/\u8fd9\u662f\u6b63\u5e38\u7684\u573a\u666f\r\n        }\r\n        \/\/ \u6b64\u5904\u5df2\u7ecf\u662f\u7f16\u8bd1\u4e0d\u901a\u8fc7\u4e86\uff0c\u8fd9\u5c31\u4fdd\u8bc1\u4e86\u7c7b\u578b\u5b89\u5168\r\n        \/\/ System.out.println(getChineseSeason(5));\r\n    }\r\n\r\n    public static void main(String[] arg){\r\n        EnumSwitch enumSwitch = new EnumSwitch();\r\n        enumSwitch.doSomething();\r\n    }\r\n}<\/pre>\n<p>&nbsp;<\/p>\n<h5 id=\"id-\u6a21\u677f-\u53c2\u8003\u94fe\u63a5\uff1a\">\u53c2\u8003\u94fe\u63a5\uff1a<\/h5>\n<ul>\n<li><a href=\"https:\/\/blog.csdn.net\/javazejian\/article\/details\/71333103\">\u6df1\u5165\u7406\u89e3Java\u679a\u4e3e\u7c7b\u578b(enum)<\/a><\/li>\n<li><a href=\"http:\/\/blog.lichengwu.cn\/java\/2011\/09\/26\/the-usage-of-enum-in-java\/\">Java \u679a\u4e3e7\u5e38\u89c1\u79cd\u7528\u6cd5<\/a><br \/>\n<a href=\"http:\/\/softbeta.iteye.com\/blog\/1185573\">http:\/\/softbeta.iteye.com\/blog\/1185573<\/a><\/li>\n<li><a href=\"https:\/\/www.ibm.com\/developerworks\/cn\/java\/j-lo-enum\/index.html\">Java \u8bed\u8a00\u4e2d Enum \u7c7b\u578b\u7684\u4f7f\u7528\u4ecb\u7ecd<\/a><\/li>\n<li><a href=\"https:\/\/www.cnblogs.com\/happyPawpaw\/archive\/2013\/04\/09\/3009553.html\">Java enum\u7684\u7528\u6cd5\u8be6\u89e3<\/a><\/li>\n<li><a href=\"https:\/\/www.jianshu.com\/p\/6f2f5627c27d\">Java\u679a\u4e3e\u8be6\u89e3<\/a><\/li>\n<li><a href=\"http:\/\/www.hollischuang.com\/archives\/195\">Java\u7684\u679a\u4e3e\u7c7b\u578b\u7528\u6cd5\u4ecb\u7ecd<\/a><\/li>\n<li><a href=\"http:\/\/blinkfox.com\/java-mei-ju-zhi-shi-zheng-li\/\">Java \u679a\u4e3e\u77e5\u8bc6\u6574\u7406<\/a><\/li>\n<li><a href=\"https:\/\/blog.csdn.net\/qq_27093465\/article\/details\/70237349\">java \u679a\u4e3e\u7c7b\u6bd4\u8f83\u662f\u7528==\u8fd8\u662fequals\uff1f<\/a><\/li>\n<li><a href=\"https:\/\/www.jianshu.com\/p\/46dbd930f6a2\">Java \u4e2d\u7684\u679a\u4e3e (enum)<\/a><\/li>\n<\/ul>\n<p>=END=<\/p>\n","protected":false},"excerpt":{"rendered":"<p>=Start= \u7f18\u7531\uff1a \u4e0d\u65ad\u8865\u5145\u5b66\u4e60Java\u57fa\u7840\u77e5\u8bc6\u3002 \u6b63\u6587\uff1a \u53c2\u8003\u89e3\u7b54\uff1a \u679a\u4e3e\u7c7b\u578b\u662fJava 5\u4e2d\u65b0\u589e\u7279\u6027\u7684 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23,7],"tags":[1181,61],"class_list":["post-4022","post","type-post","status-publish","format-standard","hentry","category-knowledgebase-2","category-programing","tag-enum","tag-java"],"views":3083,"_links":{"self":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/4022","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/comments?post=4022"}],"version-history":[{"count":2,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/4022\/revisions"}],"predecessor-version":[{"id":4025,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/4022\/revisions\/4025"}],"wp:attachment":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/media?parent=4022"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/categories?post=4022"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/tags?post=4022"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}