{"id":31100,"date":"2024-02-10T21:30:33","date_gmt":"2023-08-27T16:10:58","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/java%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%9f%a5%e8%af%86\/"},"modified":"2025-08-12T22:19:26","modified_gmt":"2025-08-12T14:19:26","slug":"java%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%9f%a5%e8%af%86","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/java%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%9f%a5%e8%af%86\/","title":{"rendered":"Java\u7684\u57fa\u672c\u77e5\u8bc6"},"content":{"rendered":"

\u6211\u5c06\u8f93\u51fa\u6211\u5728\u5b66\u4e60Java\u65b9\u9762\u7684\u5185\u5bb9\u3002<\/p>\n

Java\u7684\u57fa\u7840<\/h1>\n
Class<\/span> main<\/span> {<\/span>\r\n   public<\/span> static<\/span> void<\/span> main<\/span> (<\/span>String<\/span>[]<\/span>args<\/span>)<\/span> {<\/span>\r\n    \/\/\u3053\u3053\u306b\u51e6\u7406\u90e8\u5206\u3092\u66f8\u304f\u3002<\/span>\r\n\r\n\u3000\u3000\u3000\u3000\u3000<\/span>}<\/span>\r\n\r\n}<\/span>\r\n<\/code><\/pre>\n
\u4f7f\u7528\u4e0a\u8ff0\u7684\u7c7b\u548c\u65b9\u6cd5\u6765\u6267\u884c\u5904\u7406\u90e8\u5206\u3002<\/p>\n
\u5982\u679c\u8981\u6253\u5370\u5b57\u7b26\u4e32\uff0c\u8bf7\u4f7f\u7528\u4e0b\u9762\u7684\u4ee3\u7801\u3002
\n\u5982\u679c\u6ca1\u6709\u7528\u5f15\u53f7\u5c06\u62ec\u53f7\u5185\u7684\u5185\u5bb9\u62ec\u8d77\u6765\uff0c\u5c06\u65e0\u6cd5\u8f93\u51fa\u3002<\/p>\n
System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Hello\"<\/span>);<\/span>\r\n\/\/\u6700\u5f8c\u306e\u30bb\u30df\u30b3\u30ed\u30f3\u306f\u5fd8\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/span>\r\n<\/code><\/pre>\n
\u8f93\u51fa\u7ed3\u679c\u5728\u8fd9\u91cc\u3002<\/p>\n
Hello\r\n<\/code><\/pre>\n
\u8fd9\u91cc\u662f\u6570\u503c\u7684\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n
System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>3<\/span>);<\/span>\r\nSystem<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>5<\/span> -<\/span> 2<\/span>);<\/span>\r\nSystem<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"5 - 2\"<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u8fd9\u662f\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n
3\r\n3\r\n5-2\r\n<\/code><\/pre>\n
\u6570\u503c\u4e0d\u9700\u8981\u7528\u53cc\u5f15\u53f7\u62ec\u8d77\u6765\u3002
\n\u4f46\u662f\uff0c\u5982\u679c\u60f3\u5c06\u5176\u8868\u793a\u4e3a\u5b57\u7b26\u4e32\uff0c\u8bf7\u4f7f\u7528\u53cc\u5f15\u53f7\u62ec\u8d77\u6765\u3002<\/p>\n
\u53d8\u91cf\u7684\u5b9a\u4e49<\/h1>\n
\u5728Java\u4e2d\u5b9a\u4e49\u53d8\u91cf\u65f6\uff0c\u9700\u8981\u5b9a\u4e49\u6570\u636e\u7c7b\u578b\u548c\u53d8\u91cf\u540d\u79f0\u3002
\n\u5b57\u7b26\u4e32\u7c7b\u578b\u4f7f\u7528String\uff08\u786e\u5207\u5730\u8bf4\uff0c\u50cf\u7c7b\u4e00\u6837\uff0c\u5e94\u8be5\u5927\u5199\uff09\u3002
\n\u6574\u6570\u7c7b\u578b\u4f7f\u7528int\uff08\u7701\u7565\u4e86Integer\uff09\u3002<\/p>\n
int<\/span> number<\/span>;<\/span>\r\nnumber<\/span> =<\/span> 10<\/span>;<\/span>\r\nSystem<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>number<\/span>);<\/span>\r\n\r\nString<\/span> name<\/span>;<\/span>\r\nname<\/span> =<\/span> \"Takeru\"<\/span>;<\/span>\r\nSystem<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>name<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u8fd9\u662f\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n
10\r\nTakeru\r\n<\/code><\/pre>\n
\u540c\u65f6\u53ef\u4ee5\u5b9a\u4e49\u6570\u636e\u7c7b\u578b\u548c\u53d8\u91cf\u3002
\n\u8fd9\u88ab\u79f0\u4e3a\u53d8\u91cf\u7684\u521d\u59cb\u5316\u3002<\/p>\n
\u6b64\u5916\uff0c\u60a8\u8fd8\u53ef\u4ee5\u5bf9\u53d8\u91cf\u8fdb\u884c\u66f4\u65b0\uff0c\u4f46\u5728\u66f4\u65b0\u65f6\u4e0d\u9700\u8981\u5b9a\u4e49\u6570\u636e\u7c7b\u578b\u3002<\/p>\n
String<\/span> name<\/span> =<\/span> \"Takeru\"<\/span>;<\/span>\r\nSystem<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>name<\/span>);<\/span>\r\n\r\nname<\/span> =<\/span> \"Shun\"<\/span>;<\/span>\r\nSystem<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>name<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u8f93\u51fa\u7ed3\u679c\u5728\u8fd9\u91cc\u3002<\/p>\n
Takeru\r\nShun\r\n<\/code><\/pre>\n
\u5728Java\u4e2d\uff0c\u5982\u679c\u53d8\u91cf\u662f\u7531\u4e24\u4e2a\u6216\u66f4\u591a\u7684\u5355\u8bcd\u7ec4\u6210\uff0c\u9700\u8981\u4f7f\u7528\u5927\u5199\u5b57\u6bcd\u8fdb\u884c\u5206\u9694\u3002
\n\u8fd9\u88ab\u79f0\u4e3a\u9a7c\u5cf0\u547d\u540d\u6cd5\u3002
\n\u4f8b\u5982\uff0cuserName\u3002<\/p>\n
\u5f53\u6570\u636e\u4e3a\u5c0f\u6570\u65f6\uff0c\u6570\u636e\u7c7b\u578b\u88ab\u79f0\u4e3adouble\u3002<\/p>\n
\u5173\u4e8e\u81ea\u52a8\u8f6c\u6362<\/h3>\n
\u53ea\u6709\u5728\u52a0\u6cd5\u548c\u51cf\u6cd5\u8fd0\u7b97\u65f6\uff0c\u624d\u80fd\u4f7f\u7528\u76f8\u540c\u7684\u6570\u636e\u7c7b\u578b\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u81ea\u52a8\u8fdb\u884c\u7c7b\u578b\u8f6c\u6362\u3002<\/p>\n
\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5982\u679c\u5c06int\u7c7b\u578b\u4e0eString\u7c7b\u578b\u76f8\u52a0\uff0c\u90a3\u4e48int\u7c7b\u578b\u4f1a\u88ab\u8f6c\u6362\u4e3aString\u7c7b\u578b\u3002
\nint\u7c7b\u578b\u7684\u8ba1\u7b97\u7ed3\u679c\u4ee5int\u7c7b\u578b\u8f93\u51fa\uff0c\u800cdouble\u7c7b\u578b\u7684\u8ba1\u7b97\u7ed3\u679c\u4ee5double\u7c7b\u578b\u8f93\u51fa\u3002
\nint\u7c7b\u578b\u548cdouble\u7c7b\u578b\u7684\u8ba1\u7b97\u7ed3\u679c\u4f1a\u88ab\u8f6c\u6362\u4e3adouble\u7c7b\u578b\u8f93\u51fa\u3002<\/p>\n
\u5982\u679c\u5fc5\u987b\u5f3a\u5236\u8f6c\u6362\u6570\u636e\uff0c\u9700\u8981\u5728\u503c\u4e4b\u524d\u653e\u7f6e\u6570\u636e\u7c7b\u578b\u3002<\/p>\n
int<\/span> number1<\/span> =<\/span> 13<\/span>;<\/span>\r\nint<\/span> number2<\/span> =<\/span> 4<\/span>;<\/span>\r\n\r\nSystem<\/span>.<\/span>out<\/span>.<\/span>println<\/span>((<\/span>double<\/span>)<\/span>number1<\/span> \/<\/span> number2<\/span>)<\/span>\r\n<\/code><\/pre>\n
\u8fd9\u662f\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n
3.25\r\n<\/code><\/pre>\n
\u6700\u540e<\/h1>\n
\u7531\u4e8e\u6211\u662f\u521d\u5b66\u8005\uff0c\u6240\u4ee5\u6211\u89c9\u5f97\u6211\u7684\u6587\u7ae0\u548c\u5199\u4f5c\u65b9\u5f0f\u5f88\u4e0d\u597d\uff0c\u4f46\u8fd8\u662f\u8c22\u8c22\u60a8\u770b\u5230\u6700\u540e\u3002\u5982\u679c\u60a8\u6709\u4efb\u4f55\u6307\u6559\u6216\u6279\u8bc4\uff0c\u6211\u5c06\u4e0d\u80dc\u611f\u6fc0\u5730\u63a5\u53d7\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6211\u5c06\u8f93\u51fa\u6211\u5728\u5b66\u4e60Java\u65b9\u9762\u7684\u5185\u5bb9\u3002 Java\u7684\u57fa\u7840 Class main { public static v […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-31100","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"\nJava\u7684\u57fa\u672c\u77e5\u8bc6 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8eJava\u7684\u57fa\u672c\u77e5\u8bc6\u7684\u6280\u672f\u6587\u7ae0\" \/>\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\u57fa\u672c\u77e5\u8bc6\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java\u7684\u57fa\u672c\u77e5\u8bc6\" \/>\n<meta property=\"og:description\" content=\"\u5173\u4e8eJava\u7684\u57fa\u672c\u77e5\u8bc6\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/java\u7684\u57fa\u672c\u77e5\u8bc6\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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