{"id":65198,"date":"2025-05-03T15:10:57","date_gmt":"2025-05-03T07:10:57","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65198\/"},"modified":"2025-05-03T15:10:57","modified_gmt":"2025-05-03T07:10:57","slug":"java%e4%b8%ad%e6%95%b0%e7%bb%84%e7%9a%84%e7%b1%bb%e5%9e%8b%e9%83%bd%e6%9c%89%e5%93%aa%e4%ba%9b-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65198\/","title":{"rendered":"java\u4e2d\u6570\u7ec4\u7684\u7c7b\u578b\u90fd\u6709\u54ea\u4e9b"},"content":{"rendered":"<blockquote><p>\n  java \u4e2d\u6709\u591a\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u7ec4\uff0c\u5305\u62ec\uff1a\u4e00\u7ef4\u6570\u7ec4\uff1a\u5b58\u50a8\u7ebf\u6027\u5e8f\u5217\u7684\u5143\u7d20\u591a\u7ef4\u6570\u7ec4\uff1a\u5b58\u50a8\u5728\u5d4c\u5957\u6570\u7ec4\u4e2d\u7684\u6570\u7ec4\u5bf9\u8c61\u6570\u7ec4\uff1a\u5b58\u50a8\u5bf9\u5176\u4ed6\u5bf9\u8c61\u7684\u5f15\u7528\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\uff1a\u5b58\u50a8\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff0c\u5982 int \u548c float\u5176\u4ed6\u7c7b\u578b\u6570\u7ec4\uff08\u5e03\u5c14\u3001\u5b57\u7b26\u3001\u77ed\u6574\u578b\u3001\u957f\u6574\u578b\u3001\u6d6e\u70b9\u578b\u3001\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u6570\uff09\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/12\/2024111211061788107.jpg\" class=\"aligncenter\" title=\"java\u4e2d\u6570\u7ec4\u7684\u7c7b\u578b\u90fd\u6709\u54ea\u4e9b\u63d2\u56fe\" alt=\"java\u4e2d\u6570\u7ec4\u7684\u7c7b\u578b\u90fd\u6709\u54ea\u4e9b\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u4e2d\u6570\u7ec4\u7684\u7c7b\u578b<\/strong><\/p>\n<p>Java \u4e2d\u6709\u591a\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u7ec4\uff0c\u6bcf\u79cd\u7c7b\u578b\u90fd\u6709\u5176\u7279\u5b9a\u7684\u7528\u6cd5\u548c\u7279\u70b9\uff1a<\/p>\n<p><strong>\u4e00\u7ef4\u6570\u7ec4<\/strong><\/p>\n<ul>\n<li>\u4e00\u7ef4\u6570\u7ec4\u5b58\u50a8\u76f8\u540c\u7c7b\u578b\u5143\u7d20\u7684\u7ebf\u6027\u5e8f\u5217\u3002<\/li>\n<li>\u4f7f\u7528\u65b9\u62ec\u53f7 [] \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff0c\u7d22\u5f15\u4ece 0 \u5f00\u59cb\u3002<\/li>\n<li>\u8bed\u6cd5\uff1aint[] myArray = new int[size];<\/li>\n<\/ul>\n<p><strong>\u591a\u7ef4\u6570\u7ec4<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li>\u591a\u7ef4\u6570\u7ec4\u662f\u5b58\u50a8\u5728\u5d4c\u5957\u6570\u7ec4\u4e2d\u7684\u6570\u7ec4\u3002<\/li>\n<li>\u6700\u5e38\u89c1\u7684\u7c7b\u578b\u662f\u4e8c\u7ef4\u6570\u7ec4\uff0c\u4f46\u53ef\u4ee5\u521b\u5efa\u5177\u6709\u66f4\u591a\u7ef4\u5ea6\u7684\u6570\u7ec4\u3002<\/li>\n<li>\u8bed\u6cd5\uff1aint[][] myArray = new int[rows][cols];<\/li>\n<\/ul>\n<p><strong>\u5bf9\u8c61\u6570\u7ec4<\/strong><\/p>\n<ul>\n<li>\u5bf9\u8c61\u6570\u7ec4\u5b58\u50a8\u5f15\u7528\u5176\u4ed6\u5bf9\u8c61\u7684\u5143\u7d20\u3002<\/li>\n<li>\u53ef\u4ee5\u5b58\u50a8\u4efb\u4f55\u7c7b\u578b\u7684\u5bf9\u8c61\uff0c\u5305\u62ec\u81ea\u5b9a\u4e49\u7c7b\u3002<\/li>\n<li>\u8bed\u6cd5\uff1aObject[] myArray = new Object[size];<\/li>\n<\/ul>\n<p><strong>\u57fa\u672c\u7c7b\u578b\u6570\u7ec4<\/strong><\/p>\n<ul>\n<li>\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\u5b58\u50a8\u57fa\u672c\u6570\u636e\u7c7b\u578b\u7684\u5143\u7d20\uff0c\u5982 int\u3001float \u548c boolean\u3002<\/li>\n<li>\u5b83\u4eec\u901a\u5e38\u6bd4\u5bf9\u8c61\u6570\u7ec4\u66f4\u6709\u6548\u7387\u3002<\/li>\n<li>\u8bed\u6cd5\uff1aint[] myArray = {1, 2, 3};<\/li>\n<\/ul>\n<p><strong>\u5176\u4ed6\u7c7b\u578b\u6570\u7ec4<\/strong><\/p>\n<ul>\n<li> <strong>\u5e03\u5c14\u6570\u7ec4<\/strong>\uff1aboolean[] myArray = new boolean[size];<\/li>\n<li> <strong>\u5b57\u7b26\u6570\u7ec4<\/strong>\uff1achar[] myArray = new char[size];<\/li>\n<li> <strong>\u77ed\u6574\u578b\u6570\u7ec4<\/strong>\uff1ashort[] myArray = new short[size];<\/li>\n<li> <strong>\u957f\u6574\u578b\u6570\u7ec4<\/strong>\uff1along[] myArray = new long[size];<\/li>\n<li> <strong>\u6d6e\u70b9\u578b\u6570\u7ec4<\/strong>\uff1afloat[] myArray = new float[size];<\/li>\n<li> <strong>\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u6570\u6570\u7ec4<\/strong>\uff1adouble[] myArray = new double[size];<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u6570\u7ec4\u7684\u7c7b\u578b\u90fd\u6709\u54ea\u4e9b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>java \u4e2d\u6709\u591a\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u7ec4\uff0c\u5305\u62ec\uff1a\u4e00\u7ef4\u6570\u7ec4\uff1a\u5b58\u50a8\u7ebf\u6027\u5e8f\u5217\u7684\u5143\u7d20\u591a\u7ef4\u6570\u7ec4\uff1a\u5b58\u50a8\u5728\u5d4c\u5957\u6570\u7ec4\u4e2d\u7684\u6570\u7ec4\u5bf9\u8c61\u6570\u7ec4\uff1a\u5b58\u50a8\u5bf9\u5176\u4ed6\u5bf9\u8c61\u7684\u5f15\u7528\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\uff1a\u5b58\u50a8\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff0c\u5982 int \u548c float\u5176\u4ed6\u7c7b\u578b\u6570\u7ec4\uff08\u5e03\u5c14\u3001\u5b57\u7b26\u3001\u77ed\u6574\u578b\u3001\u957f\u6574\u578b\u3001\u6d6e\u70b9\u578b\u3001\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u6570\uff09 Java \u4e2d\u6570\u7ec4\u7684\u7c7b\u578b Java \u4e2d\u6709\u591a\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u7ec4\uff0c\u6bcf\u79cd\u7c7b\u578b\u90fd\u6709\u5176\u7279\u5b9a\u7684\u7528\u6cd5\u548c\u7279\u70b9\uff1a \u4e00\u7ef4\u6570\u7ec4 \u4e00\u7ef4\u6570\u7ec4\u5b58\u50a8\u76f8\u540c\u7c7b\u578b\u5143\u7d20\u7684\u7ebf\u6027\u5e8f\u5217\u3002 \u4f7f\u7528\u65b9\u62ec\u53f7 [] \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff0c\u7d22\u5f15\u4ece 0 \u5f00\u59cb\u3002 \u8bed\u6cd5\uff1aint[] myArray = new int[size]; \u591a\u7ef4\u6570\u7ec4 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u591a\u7ef4\u6570\u7ec4\u662f\u5b58\u50a8\u5728\u5d4c\u5957\u6570\u7ec4\u4e2d\u7684\u6570\u7ec4\u3002 \u6700\u5e38\u89c1\u7684\u7c7b\u578b\u662f\u4e8c\u7ef4\u6570\u7ec4\uff0c\u4f46\u53ef\u4ee5\u521b\u5efa\u5177\u6709\u66f4\u591a\u7ef4\u5ea6\u7684\u6570\u7ec4\u3002 \u8bed\u6cd5\uff1aint[][] myArray = new int[rows][cols]; \u5bf9\u8c61\u6570\u7ec4 \u5bf9\u8c61\u6570\u7ec4\u5b58\u50a8\u5f15\u7528\u5176\u4ed6\u5bf9\u8c61\u7684\u5143\u7d20\u3002 \u53ef\u4ee5\u5b58\u50a8\u4efb\u4f55\u7c7b\u578b\u7684\u5bf9\u8c61\uff0c\u5305\u62ec\u81ea\u5b9a\u4e49\u7c7b\u3002 \u8bed\u6cd5\uff1aObject[] myArray = new Object[size]; \u57fa\u672c\u7c7b\u578b\u6570\u7ec4 \u57fa\u672c\u7c7b\u578b\u6570\u7ec4\u5b58\u50a8\u57fa\u672c\u6570\u636e\u7c7b\u578b\u7684\u5143\u7d20\uff0c\u5982 int\u3001float \u548c boolean\u3002 \u5b83\u4eec\u901a\u5e38\u6bd4\u5bf9\u8c61\u6570\u7ec4\u66f4\u6709\u6548\u7387\u3002 \u8bed\u6cd5\uff1aint[] myArray = {1, 2, 3}; \u5176\u4ed6\u7c7b\u578b\u6570\u7ec4 \u5e03\u5c14\u6570\u7ec4\uff1aboolean[] myArray = new [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-65198","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65198","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=65198"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65198\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65198"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65198"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65198"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}