{"id":31465,"date":"2023-07-28T17:13:20","date_gmt":"2023-05-25T15:51:52","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90java%e3%80%91%e6%9e%9a%e4%b8%be%e7%b1%bb%e5%9e%8b\/"},"modified":"2024-04-30T15:46:08","modified_gmt":"2024-04-30T07:46:08","slug":"%e3%80%90java%e3%80%91%e6%9e%9a%e4%b8%be%e7%b1%bb%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90java%e3%80%91%e6%9e%9a%e4%b8%be%e7%b1%bb%e5%9e%8b\/","title":{"rendered":"\u3010Java\u3011\u679a\u4e3e\u7c7b\u578b"},"content":{"rendered":"<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5024\u305d\u306e\u3082\u306e\u306b\u610f\u5473\u304c\u306a\u304f\u3001\u30b7\u30f3\u30dc\u30eb\u3068\u3057\u3066\u610f\u5473\u3092\u6301\u3064\u5b9a\u6570\u3067final static\u3092\u4f7f\u308f\u306a\u3044<\/ul>\n<\/li>\n<\/ul>\n<p>public final static int SPRING = 0;\u306fint\u578b\u306a\u306e\u3067\u5168\u6570\u5024\u3082\u53d7\u3051\u53d6\u308c\u308b<br \/>\n\u5b63\u7bc0\u3092\u6570\u5024\u3067\u8868\u3057\u3066\u6708\u3092\u6570\u5024\u3067\u8868\u3057\u3066\u308b\u3068\u5f15\u6570\u306a\u3069\u53d6\u308a\u9055\u3048\u308b\u53ef\u80fd\u6027<\/p>\n<p>\u2192**\u5217\u6319\u578b*\u3092\u4f7f\u3046<\/p>\n<p>enum\u3000\u578b\u540d\u3067\u540d\u524d\u3092\u30ab\u30f3\u30de\u533a\u5207\u308a<br \/>\n\u5f15\u6570\u306fint\u3067\u306f\u306a\u304fenum\u3067\u5b9a\u7fa9\u3057\u305f\u540d\u524d\u306e\u578b\uff01<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/Season\u578b\u306eSPRING\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u5834\u5408\u3001Season.SPRING<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">enum<\/span> <span class=\"nc\">Season<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"no\">SPRING<\/span><span class=\"o\">,<\/span>\r\n  <span class=\"no\">SUMMER<\/span><span class=\"o\">,<\/span>\r\n  <span class=\"no\">AUTUMN<\/span><span class=\"o\">,<\/span>\r\n  <span class=\"no\">WINTER<\/span><span class=\"o\">,<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">EnumConstClient<\/span> <span class=\"o\">{<\/span>\r\n\r\n  <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">args<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"kt\">var<\/span> <span class=\"n\">ecs<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">EnumConstSeason<\/span><span class=\"o\">();<\/span>\r\n    <span class=\"n\">ecs<\/span><span class=\"o\">.<\/span><span class=\"na\">processSeason<\/span><span class=\"o\">(<\/span><span class=\"nc\">EnumConstSeason<\/span><span class=\"o\">.<\/span><span class=\"na\">SPRING<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"n\">ecs<\/span><span class=\"o\">.<\/span><span class=\"na\">processSeason<\/span><span class=\"o\">(<\/span><span class=\"mi\">4<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"n\">ecs<\/span><span class=\"o\">.<\/span><span class=\"na\">processSeason<\/span><span class=\"o\">(<\/span><span class=\"nc\">EnumConstMonth<\/span><span class=\"o\">.<\/span><span class=\"na\">JANUARY<\/span><span class=\"o\">);<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n\r\n<span class=\"err\">```<\/span><span class=\"n\">java<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">EnumSeason<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">processSeason<\/span><span class=\"o\">(<\/span><span class=\"nc\">Season<\/span> <span class=\"n\">season<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">season<\/span><span class=\"o\">);<\/span>\r\n  <span class=\"o\">}<\/span>\r\n\r\n  <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">args<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"kt\">var<\/span> <span class=\"n\">es<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">EnumSeason<\/span><span class=\"o\">();<\/span>\r\n    <span class=\"n\">es<\/span><span class=\"o\">.<\/span><span class=\"na\">processSeason<\/span><span class=\"o\">(<\/span><span class=\"nc\">Season<\/span><span class=\"o\">.<\/span><span class=\"na\">SPRING<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"c1\">\/\/Season\u578b\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u306a\u3044\u5b9a\u6570\u306f\u30a8\u30e9\u30fc<\/span>\r\n    <span class=\"c1\">\/\/ es.processSeason(4); \/\/\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc<\/span>\r\n    <span class=\"c1\">\/\/ es.processSeason(EnumConstMonth.JANUARY);\u3000\/\/\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<span class=\"err\">``<\/span>\r\n\r\n<span class=\"err\">#<\/span><span class=\"n\">\u5217\u6319\u578b\u306e\u30e1\u30f3\u30d0\u30fc<\/span>\r\n<span class=\"o\">*<\/span> <span class=\"o\">**<\/span><span class=\"n\">name<\/span><span class=\"o\">()**<\/span><span class=\"err\">\uff1a<\/span><span class=\"n\">\u5217\u6319\u5b9a\u6570\u306e\u540d\u524d\u53d6\u5f97<\/span>\r\n<span class=\"o\">*<\/span> <span class=\"o\">**<\/span><span class=\"n\">ordinal<\/span><span class=\"o\">()**<\/span><span class=\"err\">\uff1a<\/span><span class=\"n\">\u5217\u6319\u5b9a\u6570\u306e\u9806\u5e8f\u53d6\u5f97<\/span>\r\n<span class=\"o\">*<\/span> <span class=\"o\">**<\/span><span class=\"n\">toString<\/span><span class=\"o\">()**<\/span><span class=\"err\">\uff1a<\/span><span class=\"n\">\u5217\u6319\u5b9a\u6570\u306e\u540d\u524d\u53d6\u5f97<\/span><span class=\"err\">\u3001<\/span><span class=\"n\">\u500b\u3005\u306e\u578b\u3067\u9069\u5207\u306a\u6587\u5b57\u5217\u8868\u73fe\u306b\u7f6e\u304d\u63db\u3048\u3089\u308c\u3066\u3044\u308b\u53ef\u80fd\u6027<\/span>\r\n<span class=\"o\">*<\/span> <span class=\"o\">**<\/span><span class=\"n\">values<\/span><span class=\"o\">()**<\/span><span class=\"err\">\uff1a<\/span><span class=\"n\">\u5168\u3066\u306e\u5217\u6319\u5b9a\u6570\u53d6\u5f97<\/span>\r\n<span class=\"o\">*<\/span> <span class=\"o\">**<\/span><span class=\"n\">valueOf<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">name<\/span><span class=\"o\">)**<\/span><span class=\"err\">\uff1a<\/span><span class=\"n\">\u540d\u524d\u304b\u3089\u5217\u6319\u5b9a\u6570\u53d6\u5f97<\/span>\r\n\r\n<span class=\"err\">```<\/span><span class=\"n\">java<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">EnumMethod<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">args<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"o\">(<\/span><span class=\"kt\">var<\/span> <span class=\"n\">se<\/span> <span class=\"o\">:<\/span> <span class=\"nc\">Season<\/span><span class=\"o\">.<\/span><span class=\"na\">values<\/span><span class=\"o\">())<\/span> <span class=\"o\">{<\/span>\r\n      <span class=\"c1\">\/\/\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u756a\u53f7:\u540d\u524d\u3067\u51fa\u529bq<\/span>\r\n      <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">se<\/span><span class=\"o\">.<\/span><span class=\"na\">ordinal<\/span><span class=\"o\">()<\/span> <span class=\"o\">+<\/span> <span class=\"s\">\":\"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">se<\/span><span class=\"o\">.<\/span><span class=\"na\">toString<\/span><span class=\"o\">());<\/span>\r\n    <span class=\"o\">}<\/span>\r\n    <span class=\"c1\">\/\/\u6587\u5b57\u5217\u304b\u3089\u5217\u6319\u578b\u53d6\u5f97<\/span>\r\n    <span class=\"kt\">var<\/span> <span class=\"n\">s<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">Season<\/span><span class=\"o\">.<\/span><span class=\"na\">valueOf<\/span><span class=\"o\">(<\/span><span class=\"s\">\"SPRING\"<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">s<\/span> <span class=\"k\">instanceof<\/span> <span class=\"nc\">Season<\/span><span class=\"o\">);<\/span> <span class=\"c1\">\/\/true<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h1>\u6210\u54e1\u7684\u5b9a\u7fa9<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30d5\u30a3\u30fc\u30eb\u30c9\u5b9a\u7fa9\uff1a\u5217\u6319\u578b\u306b\u305d\u308c\u81ea\u4f53\u306e\u540d\u524d\u3068\u306f\u5225\u306b\u753b\u9762\u306b\u8868\u793a\u3059\u308b\/DB\u306b\u4fdd\u5b58\u3059\u308b\u3068\u3044\u3063\u305f\u7279\u5b9a\u306e\u610f\u5473\u3092\u6301\u3063\u305f\u5024\u3092\u3082\u305f\u305b\u305f\u3044\u5834\u5408<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u5b9a\u7fa9<\/ul>\n<\/li>\n<\/ul>\n<p>\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u306fprivate<\/p>\n<p>\u5217\u6319\u578b\u3067\u306fnew\u6f14\u7b97\u5b50\u3067\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3067\u304d\u306a\u3044<\/p>\n<p>Season.SPRING\u306e\u3088\u3046\u306b\u5217\u6319\u5b9a\u6570\u306e\u53c2\u7167\u304c\u6697\u9ed9\u7684\u306b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u751f\u6210\u3059\u308b<br \/>\n\u81ea\u524d\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u5b9a\u7fa9\u306e\u969b\u306b\u306f\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u306fprivate<\/p>\n<p>\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u5185\u3067super\u547c\u3079\u306a\u3044<br \/>\n\u540c\u3058\u578b\u306e\u975e\u5b9a\u6570static\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u30a2\u30af\u30bb\u30b9\u4e0d\u53ef<\/p>\n<p>\u5217\u6319\u5b9a\u6570\u306e\u672b\u5c3e\u306f\u5b9a\u6570\u3068\u30e1\u30f3\u30d0\u30fc\u306e\u533a\u5207\u308a\u306b;\u5fc5\u8981<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/\u5217\u6319\u5b9a\u6570\u3067\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u547c\u3073\u3060\u3057<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">enum<\/span> <span class=\"nc\">Season<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"no\">SPRING<\/span><span class=\"o\">(<\/span><span class=\"mi\">0<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"\u6625\"<\/span><span class=\"o\">),<\/span>\r\n    <span class=\"no\">SUMMER<\/span><span class=\"o\">(<\/span><span class=\"mi\">1<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"\u590f\"<\/span><span class=\"o\">),<\/span>\r\n    <span class=\"no\">AUTUMN<\/span><span class=\"o\">(<\/span><span class=\"mi\">2<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"\u79cb\"<\/span><span class=\"o\">),<\/span>\r\n    <span class=\"no\">WINTER<\/span><span class=\"o\">(<\/span><span class=\"mi\">4<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"\u51ac\"<\/span><span class=\"o\">);<\/span>\r\n\r\n  <span class=\"c1\">\/\/\u30d5\u30a3\u30fc\u30eb\u30c9\u5ba3\u8a00<\/span>\r\n  <span class=\"kd\">private<\/span> <span class=\"kt\">int<\/span> <span class=\"n\">code<\/span><span class=\"o\">;<\/span> <span class=\"c1\">\/\/\u5b63\u7bc0\u30b3\u30fc\u30c9<\/span>\r\n  <span class=\"kd\">private<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">jpName<\/span><span class=\"o\">;<\/span> <span class=\"c1\">\/\/\u8868\u793a\u540d<\/span>\r\n  <span class=\"c1\">\/\/\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf<\/span>\r\n  <span class=\"kd\">private<\/span> <span class=\"nf\">Season<\/span><span class=\"o\">(<\/span><span class=\"kt\">int<\/span> <span class=\"n\">code<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">jpName<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">code<\/span> <span class=\"o\">=<\/span> <span class=\"n\">code<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">jpName<\/span> <span class=\"o\">=<\/span> <span class=\"n\">jpName<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"o\">}<\/span>\r\n  <span class=\"c1\">\/\/\u30e1\u30bd\u30c3\u30c9<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"kt\">int<\/span> <span class=\"nf\">toSeasonValue<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">code<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"o\">}<\/span>\r\n  <span class=\"c1\">\/\/\u30b2\u30c3\u30bf\u30fc\u7528\u610f<\/span>\r\n  <span class=\"nd\">@Override<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"nc\">String<\/span> <span class=\"nf\">toString<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">jpName<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"o\">}<\/span>\r\n\r\n  <span class=\"c1\">\/\/public abstract void show();<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">EnumBasic<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">args<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"nc\">Season<\/span><span class=\"o\">.<\/span><span class=\"na\">SPRING<\/span><span class=\"o\">);<\/span> <span class=\"c1\">\/\/\u6625<\/span>\r\n    <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"nc\">Season<\/span><span class=\"o\">.<\/span><span class=\"na\">SPRING<\/span><span class=\"o\">.<\/span><span class=\"na\">toString<\/span><span class=\"o\">());<\/span><span class=\"err\">\u3000<\/span><span class=\"c1\">\/\/\u6625<\/span>\r\n    <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"nc\">Season<\/span><span class=\"o\">.<\/span><span class=\"na\">SPRING<\/span><span class=\"o\">.<\/span><span class=\"na\">toSeasonValue<\/span><span class=\"o\">());<\/span> <span class=\"c1\">\/\/0<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u4e3a\u6bcf\u4e2a\u679a\u4e3e\u5e38\u6570\u8fdb\u884c\u81ea\u5b9a\u4e49\u5b9e\u73b0\u3002<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u500b\u3005\u306e\u5217\u6319\u5b9a\u6570\u3067\u5b9f\u88c5\u3059\u3079\u304d\u6a5f\u80fd\u3092\u62bd\u8c61\u30e1\u30bd\u30c3\u30c9\u3067\u6e96\u5099<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u5217\u6319\u5b9a\u6570\u30d6\u30ed\u30c3\u30af\u3067\u62bd\u8c61\u30e1\u30bd\u30c3\u30c9\u3092Override<\/ul>\n<pre class=\"post-pre\"><code><span class=\"kd\">public<\/span> <span class=\"kd\">enum<\/span> <span class=\"nc\">Season<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"c1\">\/\/\u5217\u6319\u5b9a\u6570<\/span>\r\n  <span class=\"no\">SPRING<\/span><span class=\"o\">(<\/span><span class=\"mi\">0<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"\u6625\"<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"nd\">@Override<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">show<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n      <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"\u6625\u306f\u3042\u3051\u307c\u306e\"<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"o\">}<\/span>\r\n  <span class=\"o\">},<\/span>\r\n  <span class=\"no\">SUMMER<\/span><span class=\"o\">(<\/span><span class=\"mi\">1<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"\u590f\"<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"nd\">@Override<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">show<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n      <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"\u590f\u306f\u591c\"<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"o\">}<\/span>\r\n  <span class=\"o\">},<\/span>\r\n  <span class=\"no\">AUTUMN<\/span><span class=\"o\">(<\/span><span class=\"mi\">2<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"\u79cb\"<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"nd\">@Override<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">show<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n      <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"\u79cb\u306f\u5915\u66ae\u308c\"<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"o\">}<\/span>\r\n  <span class=\"o\">},<\/span>\r\n  <span class=\"no\">WINTER<\/span><span class=\"o\">(<\/span><span class=\"mi\">4<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"\u51ac\"<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"nd\">@Override<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">show<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n      <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"\u51ac\u306f\u3064\u3068\u3081\u3066\"<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"o\">}<\/span>\r\n  <span class=\"o\">};<\/span>\r\n  <span class=\"c1\">\/\/\u30d5\u30a3\u30fc\u30eb\u30c9\u5ba3\u8a00<\/span>\r\n  <span class=\"kd\">private<\/span> <span class=\"kt\">int<\/span> <span class=\"n\">code<\/span><span class=\"o\">;<\/span> <span class=\"c1\">\/\/\u5b63\u7bc0\u30b3\u30fc\u30c9<\/span>\r\n  <span class=\"kd\">private<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">jpName<\/span><span class=\"o\">;<\/span> <span class=\"c1\">\/\/\u8868\u793a\u540d<\/span>\r\n  <span class=\"c1\">\/\/\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf<\/span>\r\n  <span class=\"kd\">private<\/span> <span class=\"nf\">Season<\/span><span class=\"o\">(<\/span><span class=\"kt\">int<\/span> <span class=\"n\">code<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">jpName<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">code<\/span> <span class=\"o\">=<\/span> <span class=\"n\">code<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">jpName<\/span> <span class=\"o\">=<\/span> <span class=\"n\">jpName<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"o\">}<\/span>\r\n  <span class=\"c1\">\/\/\u30e1\u30bd\u30c3\u30c9<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"kt\">int<\/span> <span class=\"nf\">toSeasonValue<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">code<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"o\">}<\/span>\r\n\r\n  <span class=\"nd\">@Override<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"nc\">String<\/span> <span class=\"nf\">toString<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">jpName<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"o\">}<\/span>\r\n  <span class=\"c1\">\/\/\u5217\u6319\u5b9a\u6570\u304c\u5b9f\u88c5\u3059\u3079\u304d\u6a5f\u80fd\uff08\u62bd\u8c61\u30e1\u30bd\u30c3\u30c9\uff09<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"kd\">abstract<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">show<\/span><span class=\"o\">();<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">EnumMethod<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">args<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"o\">(<\/span><span class=\"kt\">var<\/span> <span class=\"nl\">se:<\/span> <span class=\"nc\">Season<\/span><span class=\"o\">.<\/span><span class=\"na\">values<\/span><span class=\"o\">())<\/span> <span class=\"o\">{<\/span>\r\n      <span class=\"n\">se<\/span><span class=\"o\">.<\/span><span class=\"na\">show<\/span><span class=\"o\">();<\/span> <span class=\"c1\">\/\/\u6625\u306f\u3042\u3051\u307c\u306e \u590f\u306f\u591c \u79cb\u306f\u5915\u66ae\u308c \u51ac\u306f\u3064\u3068\u3081\u3066\"<\/span>\r\n    <span class=\"o\">}<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h1>\u4f4d\u57df<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u8907\u6570\u306e\u30d5\u30e9\u30b0\u3092\u30d3\u30c3\u30c8\u4e26\u3073\u3067\u8868\u73fe\u3059\u308b\u3053\u3068<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30d3\u30c3\u30c8\u8ad6\u7406\u548c\u6f14\u7b97\u5b50\u3067\u307e\u3068\u3081\u308b<\/ul>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/\u5927\u6587\u5b57\u5c0f\u6587\u5b57\u533a\u5225\u3057\u306a\u3044\u3001\u30de\u30eb\u30c1\u30e9\u30a4\u30f3\u30e2\u30fc\u30c9\u6709\u52b9<\/span>\r\n<span class=\"kt\">var<\/span> <span class=\"n\">ptn<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">Pattern<\/span><span class=\"o\">.<\/span><span class=\"na\">compile<\/span><span class=\"o\">(<\/span><span class=\"s\">\"^[a-z0-9._-]*\"<\/span><span class=\"o\">,<\/span>\r\n<span class=\"nc\">Pattern<\/span><span class=\"o\">.<\/span><span class=\"na\">CASE_INSENSITIVE<\/span> <span class=\"o\">|<\/span> <span class=\"nc\">Pattern<\/span><span class=\"o\">.<\/span><span class=\"na\">MULTILINE<\/span><span class=\"o\">);<\/span><span class=\"err\">`<\/span>\r\n<\/code><\/pre>\n<p>\u30aa\u30f3\u30aa\u30d5\u691c\u67fb\u306b\u6709\u52b9<\/p>\n<p>&amp;\u30d3\u30c3\u30c8\u8ad6\u7406\u6f14\u7b97\u5b50\u3067\u8a72\u5f53\u30d3\u30c3\u30c8\u304c\u30aa\u30f3\uff081\uff09\u3067\u306a\u3044\u3068\u5168\u30d3\u30c3\u30c8\u304c\u30aa\u30d5\uff080\uff09\u306b\u306a\u308b<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"nn\">java.util.regex.Pattern<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">EnumBit<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">args<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"kt\">var<\/span> <span class=\"n\">flags<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">Pattern<\/span><span class=\"o\">.<\/span><span class=\"na\">CASE_INSENSITIVE<\/span> <span class=\"o\">|<\/span> <span class=\"nc\">Pattern<\/span><span class=\"o\">.<\/span><span class=\"na\">MULTILINE<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"o\">((<\/span><span class=\"n\">flags<\/span> <span class=\"o\">&amp;<\/span> <span class=\"nc\">Pattern<\/span><span class=\"o\">.<\/span><span class=\"na\">COMMENTS<\/span><span class=\"o\">)<\/span> <span class=\"o\">!=<\/span> <span class=\"mi\">0<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n      <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"COMMENTS\u306f\u6709\u52b9\u3067\u3059\u3002\"<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"o\">}<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">EnumSet\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u53ef\u8aad\u6027\u3092\u3042\u3052\u308b<\/ul>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/\u5217\u6319\u578b\u5b9a\u7fa9<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">enum<\/span> <span class=\"nc\">PatternFlag<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"no\">UNIX_LINES<\/span><span class=\"o\">,<\/span>\r\n  <span class=\"no\">CASE_INSENSITIVE<\/span><span class=\"o\">,<\/span>\r\n  <span class=\"no\">COMMENTS<\/span><span class=\"o\">,<\/span>\r\n  <span class=\"no\">MULTILINE<\/span><span class=\"o\">,<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/\u5217\u6319\u578b\u3092\u53d7\u3051\u3068\u308b<\/span>\r\n<span class=\"nc\">Pattern<\/span><span class=\"o\">.<\/span><span class=\"na\">compile<\/span><span class=\"o\">(<\/span><span class=\"s\">\"^[a-z0-9._-]*\"<\/span><span class=\"o\">,<\/span>\r\n<span class=\"nc\">EnumSet<\/span><span class=\"o\">.<\/span><span class=\"na\">of<\/span><span class=\"o\">(<\/span><span class=\"nc\">PatternFlag<\/span><span class=\"o\">.<\/span><span class=\"na\">CASE_INSENSITIVE<\/span><span class=\"o\">,<\/span> <span class=\"nc\">PatternFlag<\/span><span class=\"o\">.<\/span><span class=\"na\">MULTILINE<\/span><span class=\"o\">));<\/span>\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u5024\u305d\u306e\u3082\u306e\u306b\u610f\u5473\u304c\u306a\u304f\u3001\u30b7\u30f3\u30dc\u30eb\u3068\u3057\u3066\u610f\u5473\u3092\u6301\u3064\u5b9a\u6570\u3067final static\u3092\u4f7f\u308f\u306a\u3044 public fin [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-31465","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u3010Java\u3011\u679a\u4e3e\u7c7b\u578b - 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\/\u3010java\u3011\u679a\u4e3e\u7c7b\u578b\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010Java\u3011\u679a\u4e3e\u7c7b\u578b\" \/>\n<meta property=\"og:description\" content=\"\u5024\u305d\u306e\u3082\u306e\u306b\u610f\u5473\u304c\u306a\u304f\u3001\u30b7\u30f3\u30dc\u30eb\u3068\u3057\u3066\u610f\u5473\u3092\u6301\u3064\u5b9a\u6570\u3067final static\u3092\u4f7f\u308f\u306a\u3044 public fin [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u3010java\u3011\u679a\u4e3e\u7c7b\u578b\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-05-25T15:51:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-30T07:46:08+00:00\" \/>\n<meta name=\"author\" content=\"\u65b0, \u97f5\" 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