{"id":31415,"date":"2022-12-09T04:58:57","date_gmt":"2022-12-23T07:42:59","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/java%e7%9a%84%e5%8f%98%e9%87%8f%e5%92%8c%e7%b1%bb%e5%9e%8b%e5%90%8d\/"},"modified":"2025-08-12T23:56:00","modified_gmt":"2025-08-12T15:56:00","slug":"java%e7%9a%84%e5%8f%98%e9%87%8f%e5%92%8c%e7%b1%bb%e5%9e%8b%e5%90%8d","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/java%e7%9a%84%e5%8f%98%e9%87%8f%e5%92%8c%e7%b1%bb%e5%9e%8b%e5%90%8d\/","title":{"rendered":"Java\u7684\u53d8\u91cf\u548c\u7c7b\u578b\u540d"},"content":{"rendered":"

\u6211\u76ee\u524d\u6b63\u5728\u81ea\u5b66Java\u3002
\n\u4e3a\u4e86\u5907\u5fd8\u5f55\uff0c\u6211\u6253\u7b97\u5199\u4e0b\u5404\u79cd\u8bb0\u5f55\u3002<\/p>\n

\u4ea7\u54c1\u578b\u53f7<\/h2>\n

\u5728Java\u4e2d\uff0c\u5f53\u7ed9\u53d8\u91cf\u8d4b\u503c\u65f6\uff0c\u9700\u8981\u5c06\u5176\u53ce\u3081\u5728\u5bf9\u5e94\u7684\u6570\u636e\u7c7b\u578b\u4e2d\u3002
\n\u4ee5\u4e0b\u662f\u6570\u636e\u7c7b\u578b\u7684\u4e00\u89c8\u8868\u3002<\/p>\n

\n
\u7a2e\u985e\u578b\u540d\u30c7\u30fc\u30bf\u6574\u6570\u3000\u3000\u3000\u3000\u3000byte-128 \u301c 128\u307e\u3067
\nshort-32,000 \u301c 32,000\u307e\u3067
\nint-21\u5104 \u301c 21\u5104\u307e\u3067
\nlong-900\u4eac \u301c 900\u4eac\u307e\u3067\u5c0f\u6570\u70b9\u6570\u3000\u3000\u3000float\u5c0f\u6570\uff08double\u3088\u308a\u53b3\u5bc6\u3055\u306b\u6b20\u3051\u308b\uff09
\ndouble\u5c0f\u6570\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u6587\u5b57\u3000\u3000\u3000char1\u6587\u5b57\u306e\u307f
\nString\u6587\u5b57\u5217<\/div>\n<\/div>\n

\u6709\u5404\u79cd\u5404\u6837\u7684\u7c7b\u578b\uff0c\u4f7f\u7528\u8d77\u6765\u5f88\u96be\u533a\u5206…
\n\u6839\u636e\u6211\u6b63\u5728\u5b66\u4e60\u7684Udemy\u8bfe\u7a0b\uff0c
\n\u57fa\u672c\u4e0a\uff0c\u5728\u5904\u7406\u6574\u6570\u65f6\u4f7f\u7528int\u7c7b\u578b\uff0c\u5728\u5904\u7406\u5c0f\u6570\u65f6\u4f7f\u7528double\u7c7b\u578b\u3002
\n\u8fd9\u662f\u8bfe\u7a0b\u8bb2\u6388\u7684\u5185\u5bb9\u3002<\/p>\n

\u5728\u4e2d\u6587\u4e2d\uff0c\u8fd8\u5b58\u5728\u4e24\u79cd\u7c7b\u578b\u7684\u5b57\u7b26\u3002
\nchar\u7c7b\u578b\u53ea\u80fd\u5904\u7406\u4e00\u4e2a\u5b57\u7b26\u3002
\n\u4f8b\u5982’\u8d64’\u6216’\u9c7c’\u7b49…
\n\u5982\u679c\u8d85\u8fc72\u4e2a\u5b57\u7b26\uff0c\u5c06\u4f1a\u4ea7\u751f\u9519\u8bef\u3002
\n\u76f8\u53cd\uff0cString\u7c7b\u578b\u53ef\u4ee5\u63a5\u53d7\u4efb\u610f\u6570\u91cf\u7684\u5b57\u7b26\u3002
\n\u6781\u7aef\u60c5\u51b5\u4e0b\uff0c\u751a\u81f3\u53ef\u4ee5\u662f0\u4e2a\u5b57\u7b26\u4e5f\u6ca1\u95ee\u9898\u3002<\/p>\n

\u8bbe\u5b9a\u7684\u6570\u503c<\/h2>\n

\u53d8\u91cf\u7684\u58f0\u660e\u65b9\u5f0f\u5982\u4e0b\u3002<\/p>\n

char<\/span> food<\/span> =<\/span> '\u9b5a'<\/span>;<\/span>\r\nSystem<\/span>.<\/span>out<\/span>.<\/span>println<\/span> (<\/span>food<\/span>);<\/span>\r\n\/\/\u3000\u9b5a\u304c\u8868\u793a\u3055\u308c\u308b<\/span>\r\n\r\nfood<\/span> =<\/span> '\u8089'<\/span>;<\/span>\r\nSystem<\/span>.<\/span>out<\/span>.<\/span>println<\/span> (<\/span>food<\/span>);<\/span>\r\n\/\/\u9b5a\u304c\u4e0a\u66f8\u304d\u3055\u308c\u3066\u8089\u304c\u8868\u793a\u3055\u308c\u308b<\/span>\r\n<\/code><\/pre>\n
\u4f46\u662f\uff0c\u5982\u679c\u5728\u53d8\u91cf\u540d\u4e4b\u524d\u58f0\u660efinal\uff0c\u5c31\u65e0\u6cd5\u5bf9\u5176\u8fdb\u884c\u8986\u76d6\u3002<\/p>\n
\r\nfinal<\/span> char<\/span> FOOD<\/span> =<\/span> '\u9b5a'<\/span>;<\/span>\r\nSystem<\/span>.<\/span>out<\/span>.<\/span>println<\/span> (<\/span>food<\/span>);<\/span>\r\n\/\/\u3000\u9b5a\u304c\u8868\u793a\u3055\u308c\u308b<\/span>\r\n\r\nfood<\/span> =<\/span> '\u8089'<\/span>;<\/span>\r\nSystem<\/span>.<\/span>out<\/span>.<\/span>println<\/span> (<\/span>food<\/span>);<\/span>\r\n\u3000<\/span>\/\/\u4e0a\u66f8\u304d\u3055\u308c\u305a\u306b\u30a8\u30e9\u30fc\u304c\u51fa\u308b<\/span>\r\n<\/code><\/pre>\n
\u91cd\u70b9\u662f\u7528\u5927\u5199\u82f1\u6587\u5b57\u6bcd\u6765\u547d\u540d\u53d8\u91cf\u3002\u867d\u7136\u7528\u5c0f\u5199\u5b57\u6bcd\u4e5f\u6ca1\u6709\u95ee\u9898\uff0c\u4f46\u4e3a\u4e86\u8ba9\u4ed6\u4eba\u4e00\u773c\u5c31\u80fd\u7406\u89e3\u201c\u4e0d\u80fd\u88ab\u8986\u76d6\u201d\uff0c\u901a\u5e38\u4f1a\u6545\u610f\u7528\u5927\u5199\u5b57\u6bcd\u6765\u5199\uff0c\u4ee5\u4fbf\u8ba9\u5176\u66f4\u6613\u4e8e\u7406\u89e3\u3002<\/p>\n
\u4e0d\u7ba1\u8d70\u5230\u54ea\u91cc\uff0c\u6211\u90fd\u611f\u5230\u7a0b\u5e8f\u4e0d\u5e94\u8be5\u53ea\u662f\u81ea\u6211\u5439\u5618\uff0c\u800c\u662f\u9700\u8981\u4ee5\u5bf9\u5bf9\u65b9\u7684\u5173\u6000\u6765\u8fdb\u884c\u63cf\u8ff0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6211\u76ee\u524d\u6b63\u5728\u81ea\u5b66Java\u3002 \u4e3a\u4e86\u5907\u5fd8\u5f55\uff0c\u6211\u6253\u7b97\u5199\u4e0b\u5404\u79cd\u8bb0\u5f55\u3002 \u4ea7\u54c1\u578b\u53f7 \u5728Java\u4e2d\uff0c\u5f53\u7ed9\u53d8\u91cf\u8d4b\u503c\u65f6\uff0c\u9700\u8981\u5c06\u5176\u53ce […]<\/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-31415","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"\nJava\u7684\u53d8\u91cf\u548c\u7c7b\u578b\u540d - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8eJava\u7684\u53d8\u91cf\u548c\u7c7b\u578b\u540d\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\u53d8\u91cf\u548c\u7c7b\u578b\u540d\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java\u7684\u53d8\u91cf\u548c\u7c7b\u578b\u540d\" \/>\n<meta property=\"og:description\" content=\"\u5173\u4e8eJava\u7684\u53d8\u91cf\u548c\u7c7b\u578b\u540d\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/java\u7684\u53d8\u91cf\u548c\u7c7b\u578b\u540d\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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