{"id":693,"date":"2023-03-23T21:50:23","date_gmt":"2023-03-23T13:50:23","guid":{"rendered":""},"modified":"2023-03-23T21:50:23","modified_gmt":"2023-03-23T13:50:23","slug":"Java \u7a0b\u5e8f\u4f8b\u5b50","status":"publish","type":"post","link":"https:\/\/bianchenghao6.com\/693.html","title":{"rendered":"Java \u7a0b\u5e8f\u4f8b\u5b50"},"content":{"rendered":"


\n <\/head>
\n <\/p>\n

\n

Java \u7a0b\u5e8f\u4f8b\u5b50<\/h1>\n<\/p><\/div>\n
\n \u5728\u6b64\u9875\u9762\u4e2d\uff0c\u6211\u4eec\u5c06\u5b66\u4e60\u5982\u4f55\u7f16\u5199\u7b80\u5355\u7684Java\u7a0b\u5e8f\u3002\u5b89\u88c5JDK\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u8f7b\u677e\u7f16\u5199\u4e00\u4e2a\u7b80\u5355\u7684hello java\u7a0b\u5e8f\u3002\n <\/div>\n
\n \u8981\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684java\u7a0b\u5e8f\uff0c\u60a8\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u5305\u542bmain\u65b9\u6cd5\u7684\u7c7b\u3002\u8ba9\u6211\u4eec\u5148\u4e86\u89e3\u9700\u6c42\u3002\n <\/div>\n

<\/span> <\/p>\n

Java Hello World\u793a\u4f8b\u7684\u8981\u6c42<\/h3>\n
\n \u8981\u6267\u884c\u4efb\u4f55Java\u7a0b\u5e8f\uff0c\u60a8\u9700\u8981\n <\/div>\n

\u5982\u679c\u5c1a\u672a\u5b89\u88c5JDK\uff0c\u8bf7\u5b89\u88c5\u5b83\uff0c\u4e0b\u8f7dJDK \u5e76\u5b89\u88c5\u3002 <\/span>
\n \u8bbe\u7f6ejdk\/bin\u76ee\u5f55\u7684\u8def\u5f84\u3002 http:\/\/www.lidihuo.com\/java\/java-how-to-set-path.html <\/span>
\n \u521b\u5efaJava\u7a0b\u5e8f<\/span>
\n \u7f16\u8bd1\u5e76\u8fd0\u884cJava\u7a0b\u5e8f<\/span> <\/p>\n


\n

<\/span> <\/p>\n

\u521b\u5efaHello World\u793a\u4f8b<\/h3>\n
\n \u8ba9\u6211\u4eec\u521b\u5efahello Java\u7a0b\u5e8f:\n <\/div>\n
\n
 class Simple{
    public static void main(String args[]){
     System.out.println(\"Hello Java\");
    }
}
<\/span><\/code><\/pre>\n<\/p><\/div>\n
\n \u5c06\u6b64\u6587\u4ef6\u53e6\u5b58\u4e3aSimple.java\n <\/div>\n\n\n\n\n\n
\u64cd\u4f5c<\/td>\n\u4ee3\u7801<\/td>\n<\/tr>\n
\u7f16\u8bd1: <\/strong> <\/td>\n javac Simple.java <\/td>\n<\/tr>\n
\u6267\u884c: <\/strong> <\/td>\n java Simple<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n
\n
 \u8f93\u51fa: <\/strong> Hello Java
<\/span><\/code><\/pre>\n<\/p><\/div>\n<\/p><\/div>\n
\n \u7f16\u8bd1\u6d41\u7a0b: <\/strong>\n <\/div>\n
\n \u5f53\u6211\u4eec\u4f7f\u7528javac\u5de5\u5177\u7f16\u8bd1Java\u7a0b\u5e8f\u65f6\uff0cjava\u7f16\u8bd1\u5668\u4f1a\u5c06\u6e90\u4ee3\u7801\u8f6c\u6362\u4e3a\u5b57\u8282\u4ee3\u7801\u3002\n <\/div>\n

Java \u7a0b\u5e8f\u4f8b\u5b50_https:\/\/bianchenghao6.com_\u3010Java \u57fa\u7840\u6559\u7a0b\u3011_\u7b2c1\u5f20 <\/p>\n

\u7b2c\u4e00\u4e2aJava\u7a0b\u5e8f\u4e2d\u4f7f\u7528\u7684\u53c2\u6570<\/h2>\n
\n \u8ba9\u6211\u4eec\u770b\u770bclass\uff0cpublic\uff0cstatic\uff0cvoid\uff0cmain\uff0cString []\uff0cSystem.out\u7684\u542b\u4e49\u662f\u4ec0\u4e48\u3002 println()\u3002\n <\/div>\n
\n <\/div>\n

class: <\/strong>\u5173\u952e\u5b57\u7528\u4e8e\u5728Java\u4e2d\u58f0\u660e\u4e00\u4e2a\u7c7b\u3002<\/span>
\n public: <\/strong>\u5173\u952e\u5b57\u662f\u4e00\u79cd\u8bbf\u95ee\u4fee\u9970\u7b26\uff0c\u4ee3\u8868\u53ef\u89c1\u6027\u3002\u8fd9\u610f\u5473\u7740\u6240\u6709\u4eba\u90fd\u53ef\u4ee5\u770b\u5230\u5b83\u3002<\/span>
\n static: <\/strong>\u662f\u5173\u952e\u5b57\u3002\u5982\u679c\u6211\u4eec\u5c06\u4efb\u4f55\u65b9\u6cd5\u58f0\u660e\u4e3a\u9759\u6001\u65b9\u6cd5\uff0c\u5219\u79f0\u4e3a\u9759\u6001\u65b9\u6cd5\u3002\u9759\u6001\u65b9\u6cd5\u7684\u6838\u5fc3\u4f18\u70b9\u662f\u65e0\u9700\u521b\u5efa\u5bf9\u8c61\u6765\u8c03\u7528\u9759\u6001\u65b9\u6cd5\u3002 main\u65b9\u6cd5\u7531JVM\u6267\u884c\uff0c\u56e0\u6b64\u4e0d\u9700\u8981\u521b\u5efa\u5bf9\u8c61\u6765\u8c03\u7528main\u65b9\u6cd5\u3002\u8fd9\u6837\u53ef\u4ee5\u8282\u7701\u5185\u5b58\u3002<\/span>
\n void: <\/strong>\u662f\u65b9\u6cd5\u7684\u8fd4\u56de\u7c7b\u578b\u3002\u8fd9\u610f\u5473\u7740\u5b83\u4e0d\u8fd4\u56de\u4efb\u4f55\u503c\u3002<\/span>
\n main: <\/strong>\u4ee3\u8868\u7a0b\u5e8f\u7684\u8d77\u70b9\u3002<\/span>
\n String[]: <\/strong>\u53c2\u6570\u7528\u4e8e\u547d\u4ee4\u884c\u53c2\u6570\u3002\u6211\u4eec\u7a0d\u540e\u4f1a\u5b66\u4e60\u3002<\/span>
\n System.out.println(): <\/strong>\u7528\u4e8e\u6253\u5370\u8bed\u53e5\u3002\u5728\u8fd9\u91cc\uff0cSystem\u662f\u4e00\u4e2a\u7c7b\uff0cout\u662fPrintStream\u7c7b\u7684\u5bf9\u8c61\uff0cprintln()\u662fPrintStream\u7c7b\u7684\u65b9\u6cd5\u3002\u7a0d\u540e\u6211\u4eec\u5c06\u4e86\u89e3System.out.println\u8bed\u53e5\u7684\u5185\u90e8\u5de5\u4f5c\u3002<\/span> <\/p>\n


\n
\n \u8981\u7f16\u5199\u7b80\u5355\u7a0b\u5e8f\uff0c\u60a8\u9700\u8981\u901a\u8fc7
\n \u5f00\u59cb\u83dc\u5355->\u6240\u6709\u7a0b\u5e8f->\u9644\u4ef6->\u8bb0\u4e8b\u672c<\/b>\u6253\u5f00\u8bb0\u4e8b\u672c\uff0c\u5e76\u7f16\u5199\u4e00\u4e2a\u5982\u4e0b\u6240\u793a\u7684\u7b80\u5355\u7a0b\u5e8f:\n <\/div>\n

Java \u7a0b\u5e8f\u4f8b\u5b50_https:\/\/bianchenghao6.com_\u3010Java \u57fa\u7840\u6559\u7a0b\u3011_\u7b2c2\u5f20 <\/p>\n

\n \u5982\u4e0a\u56fe\u6240\u793a\uff0c\u5728\u8bb0\u4e8b\u672c\u4e2d\u7f16\u5199Java\u7684\u7b80\u5355\u7a0b\u5e8f\u5e76\u5c06\u5176\u4fdd\u5b58\u4e3aSimple.java\u3002\u8981\u7f16\u8bd1\u5e76\u8fd0\u884c\u8be5\u7a0b\u5e8f\uff0c\u60a8\u9700\u8981\u901a\u8fc7
\n \u5f00\u59cb\u83dc\u5355->\u6240\u6709\u7a0b\u5e8f->\u9644\u4ef6->\u547d\u4ee4\u63d0\u793a\u7b26 <\/b>
\n
\u6253\u5f00\u547d\u4ee4\u63d0\u793a\u7b26\u3002\n <\/div>\n

Java \u7a0b\u5e8f\u4f8b\u5b50_https:\/\/bianchenghao6.com_\u3010Java \u57fa\u7840\u6559\u7a0b\u3011_\u7b2c3\u5f20 <\/p>\n

<\/p>\n\n\n\n
\u8981\u7f16\u8bd1\u5e76\u8fd0\u884c\u4e0a\u8ff0\u7a0b\u5e8f\uff0c\u8bf7\u9996\u5148\u8f6c\u5230\u60a8\u7684\u5f53\u524d\u76ee\u5f55\uff1b\u6211\u5f53\u524d\u7684\u76ee\u5f55\u662fc:\\new\u3002\u5728\u8fd9\u91cc\u5199: <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n
\u64cd\u4f5c<\/td>\n\u4ee3\u7801<\/td>\n<\/tr>\n
\u7f16\u8bd1: <\/strong> <\/td>\n javac Simple.java <\/td>\n<\/tr>\n
\u6267\u884c: <\/strong> <\/td>\n java Simple<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n

\u6211\u4eec\u53ef\u4ee5\u7528\u591a\u79cd\u65b9\u6cd5\u7f16\u5199Java\u7a0b\u5e8f<\/h2>\n
\n \u6709\u8bb8\u591a\u65b9\u6cd5\u53ef\u4ee5\u7f16\u5199Java\u7a0b\u5e8f\u3002\u5728Java\u7a0b\u5e8f\u4e2d\u53ef\u4ee5\u8fdb\u884c\u7684\u4fee\u6539\u5982\u4e0b:\n <\/div>\n
\n 1)\u901a\u8fc7\u66f4\u6539\u4fee\u9970\u7b26\u7684\u987a\u5e8f\uff0c\u65b9\u6cd5\u539f\u578b\u5728Java\u4e2d\u4e0d\u4f1a\u66f4\u6539\u3002<\/b>\n <\/div>\n
\n \u8ba9\u6211\u4eec\u770b\u4e00\u4e0bmain\u65b9\u6cd5\u7684\u7b80\u5355\u4ee3\u7801\u3002\n <\/div>\n
\n
 static public void main(String args[])
<\/span><\/code><\/pre>\n<\/p><\/div>\n
\n 2)Java\u6570\u7ec4\u4e2d\u7684\u4e0b\u6807\u7b26\u53f7\u53ef\u4ee5\u5728\u7c7b\u578b\u4e4b\u540e\uff0c\u53d8\u91cf\u4e4b\u524d\u6216\u53d8\u91cf\u4e4b\u540e\u4f7f\u7528\u3002<\/b>\n <\/div>\n
\n \u8ba9\u6211\u4eec\u770b\u770b\u7f16\u5199\u4e3b\u8981\u65b9\u6cd5\u7684\u4e0d\u540c\u4ee3\u7801\n <\/div>\n
\n
 public static void main(String[] args)
public static void main(String []args)
public static void main(String args[])
<\/span><\/code><\/pre>\n<\/p><\/div>\n
\n 3)\u60a8\u53ef\u4ee5\u901a\u8fc7\u4f20\u90123\u4e2a\u692d\u5706(\u70b9)\u6765\u4e3amain\u65b9\u6cd5\u63d0\u4f9bvar-args\u652f\u6301\u3002<\/b>\n <\/div>\n
\n \u8ba9\u6211\u4eec\u5728\u4e0b\u9762\u7684\u793a\u4f8b\u4e2d\u4f7f\u7528var-args\u7684\u7b80\u5355\u4ee3\u7801\u4e3b\u8981\u65b9\u6cd5\u3002\u7a0d\u540e\u6211\u4eec\u5c06\u5728Java\u65b0\u529f\u80fd\u4e00\u7ae0\u4e2d\u4e86\u89e3var-args\u3002\n <\/div>\n
\n
 public static void main(String... args)
<\/span><\/code><\/pre>\n<\/p><\/div>\n
\n 4)\u5728Java\u4e2d\uff0c\u5728\u7c7b\u7684\u672b\u5c3e\u6dfb\u52a0\u5206\u53f7\u662f\u53ef\u9009\u7684\u3002<\/b>\n <\/div>\n
\n \u8ba9\u6211\u4eec\u770b\u4e00\u4e0b\u7b80\u5355\u7684\u4ee3\u7801\u3002\n <\/div>\n
\n
 class A{
  static public void main(String... args){
    System.out.println(\"hello java4\");
  }
};
<\/span><\/code><\/pre>\n<\/p><\/div>\n
\n

\u6709\u6548\u7684Java\u4e3b\u65b9\u6cd5\u7b7e\u540d<\/h2>\n
\n
 public static void main(String[] args)
public static void main(String []args)
public static void main(String args[])
public static void main(String... args)
static public void main(String[] args)
public static final void main(String[] args)
final public static void main(String[] args)
final strictfp public static void main(String[] args)
<\/span><\/code><\/pre>\n<\/p><\/div>\n
\n

\u65e0\u6548\u7684Java\u4e3b\u65b9\u6cd5\u7b7e\u540d<\/h2>\n
\n
 public void main(String[] args)
static void main(String[] args)
public void static main(String[] args)
abstract public static void main(String[] args)
<\/span><\/code><\/pre>\n<\/p><\/div>\n
\n

<\/span> <\/p>\n

\u89e3\u51b3\u9519\u8bef\"\u65e0\u6cd5\u5c06Javac\u8bc6\u522b\u4e3a\u5185\u90e8\u6216\u5916\u90e8\u547d\u4ee4\"\uff1f<\/h3>\n
\n \u5982\u679c\u53d1\u751f\u4e0b\u56fe\u6240\u793a\u7684\u95ee\u9898\uff0c\u9700\u8981\u8bbe\u7f6e\u8def\u5f84\u3002\u7531\u4e8eDOS\u4e0d\u77e5\u9053javac\u6216java\uff0c\u56e0\u6b64\u6211\u4eec\u9700\u8981\u8bbe\u7f6e\u8def\u5f84\u3002\u5982\u679c\u60a8\u5c06\u7a0b\u5e8f\u4fdd\u5b58\u5728JDK\/bin\u76ee\u5f55\u4e2d\uff0c\u5219\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4e0d\u9700\u8981\u8be5\u8def\u5f84\u3002\u4f46\u662f\uff0c\u8fd9\u662f\u8bbe\u7f6e\u8def\u5f84\u7684\u7edd\u4f73\u65b9\u6cd5\u3002\u5355\u51fb\u6b64\u5904\u4ee5\u83b7\u53d6\u3002
\n \u5982\u4f55\u8bbe\u7f6eJava Path\n <\/div>\n

Java \u7a0b\u5e8f\u4f8b\u5b50_https:\/\/bianchenghao6.com_\u3010Java \u57fa\u7840\u6559\u7a0b\u3011_\u7b2c4\u5f20
\n <\/body>
\n<\/html><\/p>\n","protected":false},"excerpt":{"rendered":"Java \u7a0b\u5e8f\u4f8b\u5b50zh-cn","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[111],"tags":[],"class_list":["post-693","post","type-post","status-publish","format-standard","hentry","category-java-jichu"],"_links":{"self":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/693"}],"collection":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/comments?post=693"}],"version-history":[{"count":0,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/693\/revisions"}],"wp:attachment":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/media?parent=693"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/categories?post=693"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/tags?post=693"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}