{"id":65680,"date":"2025-05-03T17:15:00","date_gmt":"2025-05-03T09:15:00","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65680\/"},"modified":"2025-05-03T17:15:00","modified_gmt":"2025-05-03T09:15:00","slug":"java-%e6%80%8e%e4%b9%88%e5%bb%ba%e7%ab%8b%e8%8c%83%e5%9e%8b%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65680\/","title":{"rendered":"java \u600e\u4e48\u5efa\u7acb\u8303\u578b\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u4f7f\u7528\u7c7b\u578b\u53c2\u6570\u5316\u5efa\u7acb\u6cdb\u578b\u6570\u7ec4\uff0c\u5305\u62ec\uff1a\u58f0\u660e\u6570\u7ec4\u7c7b\u578b\uff1at[] array\u521b\u5efa\u6570\u7ec4\uff1at[] array = new t[size]\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1at element = array[index]\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111307095492802.jpg\" class=\"aligncenter\" title=\"java \u600e\u4e48\u5efa\u7acb\u8303\u578b\u6570\u7ec4\u63d2\u56fe\" alt=\"java \u600e\u4e48\u5efa\u7acb\u8303\u578b\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528 Java \u5efa\u7acb\u6cdb\u578b\u6570\u7ec4<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u5efa\u7acb\u6cdb\u578b\u6570\u7ec4\u9700\u8981\u4f7f\u7528\u7c7b\u578b\u53c2\u6570\u5316\u3002\u7c7b\u578b\u53c2\u6570\u662f\u4e00\u4e2a\u653e\u5728\u65b9\u62ec\u53f7\u5185\u7684\u7c7b\u578b\u53d8\u91cf\uff0c\u8868\u793a\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u7c7b\u578b\u3002<\/p>\n<p><strong>\u6b65\u9aa4\uff1a<\/strong><\/p>\n<ol>\n<li>\n<p><strong>\u58f0\u660e\u6570\u7ec4\u7c7b\u578b\uff1a<\/strong><br \/>\u4f7f\u7528\u6cdb\u578b\u7c7b\u578b\u53c2\u6570\u58f0\u660e\u6570\u7ec4\u7c7b\u578b\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>T[] array;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d T \u662f\u7c7b\u578b\u53c2\u6570\uff0c\u4ee3\u8868\u6570\u7ec4\u5143\u7d20\u7684\u7c7b\u578b\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u521b\u5efa\u6570\u7ec4\uff1a<\/strong><br \/>\u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u6570\u7ec4\uff0c\u5e76\u6307\u5b9a\u7c7b\u578b\u53c2\u6570\u548c\u6570\u7ec4\u5927\u5c0f\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre>T[] array = new T[size];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d size \u662f\u8981\u521b\u5efa\u7684\u6570\u7ec4\u7684\u5927\u5c0f\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1a<\/strong><br \/>\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u65b9\u62ec\u53f7 ([]) \u7d22\u5f15\u6765\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre>T element = array[index];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d index \u662f\u8981\u8bbf\u95ee\u7684\u5143\u7d20\u7684\u7d22\u5f15\u3002<\/p>\n<\/li>\n<\/ol>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<p>\u4ee5\u4e0b\u793a\u4f8b\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u5b57\u7b26\u4e32\u5143\u7d20\u7684\u6cdb\u578b\u6570\u7ec4\uff1a<\/p>\n<pre>String[] stringArray = new String[10];\nstringArray[0] = \"Hello\";\nstringArray[1] = \"World\";<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>\u6cdb\u578b\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\u5fc5\u987b\u662f\u540c\u4e00\u7c7b\u578b\u7684\u5b9e\u4f8b\u3002<\/li>\n<li>\u6cdb\u578b\u6570\u7ec4\u7c7b\u578b\u5728\u7f16\u8bd1\u65f6\u786e\u5b9a\uff0c\u56e0\u6b64\u65e0\u6cd5\u5728\u8fd0\u884c\u65f6\u66f4\u6539\u6570\u7ec4\u7684\u7c7b\u578b\u3002<\/li>\n<li>\u6cdb\u578b\u6570\u7ec4\u4e0e\u666e\u901a\u6570\u7ec4\u7c7b\u4f3c\uff0c\u53ef\u4ee5\u4f7f\u7528 length \u5c5e\u6027\u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u5e76\u4f7f\u7528 Arrays \u7c7b\u64cd\u4f5c\u6570\u7ec4\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava \u600e\u4e48\u5efa\u7acb\u8303\u578b\u6570\u7ec4\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>\u5728 java \u4e2d\u4f7f\u7528\u7c7b\u578b\u53c2\u6570\u5316\u5efa\u7acb\u6cdb\u578b\u6570\u7ec4\uff0c\u5305\u62ec\uff1a\u58f0\u660e\u6570\u7ec4\u7c7b\u578b\uff1at[] array\u521b\u5efa\u6570\u7ec4\uff1at[] array = new t[size]\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1at element = array[index] \u5982\u4f55\u4f7f\u7528 Java \u5efa\u7acb\u6cdb\u578b\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u5efa\u7acb\u6cdb\u578b\u6570\u7ec4\u9700\u8981\u4f7f\u7528\u7c7b\u578b\u53c2\u6570\u5316\u3002\u7c7b\u578b\u53c2\u6570\u662f\u4e00\u4e2a\u653e\u5728\u65b9\u62ec\u53f7\u5185\u7684\u7c7b\u578b\u53d8\u91cf\uff0c\u8868\u793a\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u7c7b\u578b\u3002 \u6b65\u9aa4\uff1a \u58f0\u660e\u6570\u7ec4\u7c7b\u578b\uff1a\u4f7f\u7528\u6cdb\u578b\u7c7b\u578b\u53c2\u6570\u58f0\u660e\u6570\u7ec4\u7c7b\u578b\uff0c\u5982\u4e0b\u6240\u793a\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b T[] array; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d T \u662f\u7c7b\u578b\u53c2\u6570\uff0c\u4ee3\u8868\u6570\u7ec4\u5143\u7d20\u7684\u7c7b\u578b\u3002 \u521b\u5efa\u6570\u7ec4\uff1a\u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u6570\u7ec4\uff0c\u5e76\u6307\u5b9a\u7c7b\u578b\u53c2\u6570\u548c\u6570\u7ec4\u5927\u5c0f\uff0c\u5982\u4e0b\u6240\u793a\uff1a T[] array = new T[size]; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d size \u662f\u8981\u521b\u5efa\u7684\u6570\u7ec4\u7684\u5927\u5c0f\u3002 \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1a\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u65b9\u62ec\u53f7 ([]) \u7d22\u5f15\u6765\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff0c\u5982\u4e0b\u6240\u793a\uff1a T element = array[index]; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d index \u662f\u8981\u8bbf\u95ee\u7684\u5143\u7d20\u7684\u7d22\u5f15\u3002 \u793a\u4f8b\uff1a \u4ee5\u4e0b\u793a\u4f8b\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u5b57\u7b26\u4e32\u5143\u7d20\u7684\u6cdb\u578b\u6570\u7ec4\uff1a String[] stringArray = 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-65680","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65680","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=65680"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65680\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65680"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65680"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65680"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}