{"id":66627,"date":"2025-05-03T15:34:15","date_gmt":"2025-05-03T07:34:15","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66627\/"},"modified":"2025-05-03T15:34:15","modified_gmt":"2025-05-03T07:34:15","slug":"java%e6%80%8e%e4%b9%88%e5%ae%9a%e4%b9%89%e4%b8%80%e4%b8%aa%e5%af%b9%e8%b1%a1%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66627\/","title":{"rendered":"java\u600e\u4e48\u5b9a\u4e49\u4e00\u4e2a\u5bf9\u8c61\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u5b9a\u4e49\u5bf9\u8c61\u6570\u7ec4\uff1a\u4f7f\u7528\u65b9\u62ec\u53f7\u8bed\u6cd5\uff0c\u6307\u5b9a\u6570\u7ec4\u7c7b\u578b\u548c\u5927\u5c0f\uff1a\u7c7b\u578b[] \u6570\u7ec4\u540d = new \u7c7b\u578b[\u5927\u5c0f];\u4f7f\u7528\u65b9\u62ec\u53f7\u7d22\u5f15\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1a\u6570\u7ec4\u540d[\u7d22\u5f15]\u4f7f\u7528\u65b9\u62ec\u53f7\u7d22\u5f15\u8bbe\u7f6e\u6570\u7ec4\u5143\u7d20\uff1a\u6570\u7ec4\u540d[\u7d22\u5f15] = \u503c;\u5bf9\u8c61\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u53ef\u4ee5\u662f\u4efb\u4f55\u7c7b\u578b\u7684\u5bf9\u8c61\uff0c\u5305\u62ec\u5176\u4ed6\u6570\u7ec4\u3002\u6570\u7ec4\u7684\u5927\u5c0f\u5728\u521b\u5efa\u540e\u4e0d\u53ef\u66f4\u6539\u3002\u8bbf\u95ee\u8d85\u51fa\u8303\u56f4\u7684\u7d22\u5f15\u4f1a\u629b\u51fa arrayindexoutofboundsexception\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111611092049101.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u5b9a\u4e49\u4e00\u4e2a\u5bf9\u8c61\u6570\u7ec4\u63d2\u56fe\" alt=\"java\u600e\u4e48\u5b9a\u4e49\u4e00\u4e2a\u5bf9\u8c61\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u4e2d\u5b9a\u4e49\u5bf9\u8c61\u6570\u7ec4<\/strong><\/p>\n<p><strong>\u5b9a\u4e49\u5bf9\u8c61\u6570\u7ec4<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u65b9\u62ec\u53f7\u8bed\u6cd5\u6765\u5b9a\u4e49\u4e00\u4e2a\u5bf9\u8c61\u6570\u7ec4\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>\u7c7b\u578b[] \u6570\u7ec4\u540d = new \u7c7b\u578b[\u5927\u5c0f];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4f8b\u5982\uff0c\u8981\u5b9a\u4e49\u4e00\u4e2a\u5305\u542b 5 \u4e2a String \u5bf9\u8c61\u7684\u6570\u7ec4\uff0c\u60a8\u53ef\u4ee5\u8fd9\u6837\u5199\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>String[] myArray = new String[5];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20<\/strong><\/p>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528\u65b9\u62ec\u53f7\u7d22\u5f15\u6765\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>\u6570\u7ec4\u540d[\u7d22\u5f15]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4f8b\u5982\uff0c\u8981\u8bbf\u95ee myArray \u4e2d\u7b2c\u4e00\u4e2a\u5143\u7d20\uff0c\u60a8\u53ef\u4ee5\u8fd9\u6837\u5199\uff1a<\/p>\n<pre>myArray[0]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u8bbe\u7f6e\u6570\u7ec4\u5143\u7d20<\/strong><\/p>\n<p>\u60a8\u8fd8\u53ef\u4ee5\u4f7f\u7528\u65b9\u62ec\u53f7\u7d22\u5f15\u6765\u8bbe\u7f6e\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>\u6570\u7ec4\u540d[\u7d22\u5f15] = \u503c;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4f8b\u5982\uff0c\u8981\u5c06 myArray \u7b2c\u4e00\u4e2a\u5143\u7d20\u8bbe\u7f6e\u4e3a &#8220;Hello, World!&#8221;\uff0c\u60a8\u53ef\u4ee5\u8fd9\u6837\u5199\uff1a<\/p>\n<pre>myArray[0] = \"Hello, World!\";<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<ul>\n<li>\u5bf9\u8c61\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u53ef\u4ee5\u662f\u4efb\u4f55\u7c7b\u578b\u7684\u5bf9\u8c61\uff0c\u5305\u62ec\u5176\u4ed6\u6570\u7ec4\u3002<\/li>\n<li>\u6570\u7ec4\u7684\u5927\u5c0f\u4e00\u65e6\u521b\u5efa\u5c31\u65e0\u6cd5\u66f4\u6539\u3002<\/li>\n<li>\u5982\u679c\u4f60\u5c1d\u8bd5\u8bbf\u95ee\u4e00\u4e2a\u8d85\u51fa\u6570\u7ec4\u8303\u56f4\u7684\u7d22\u5f15\uff0c\u4f60\u4f1a\u5f97\u5230\u4e00\u4e2a ArrayIndexOutOfBoundsException\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5b9a\u4e49\u4e00\u4e2a\u5bf9\u8c61\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\u5b9a\u4e49\u5bf9\u8c61\u6570\u7ec4\uff1a\u4f7f\u7528\u65b9\u62ec\u53f7\u8bed\u6cd5\uff0c\u6307\u5b9a\u6570\u7ec4\u7c7b\u578b\u548c\u5927\u5c0f\uff1a\u7c7b\u578b[] \u6570\u7ec4\u540d = new \u7c7b\u578b[\u5927\u5c0f];\u4f7f\u7528\u65b9\u62ec\u53f7\u7d22\u5f15\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1a\u6570\u7ec4\u540d[\u7d22\u5f15]\u4f7f\u7528\u65b9\u62ec\u53f7\u7d22\u5f15\u8bbe\u7f6e\u6570\u7ec4\u5143\u7d20\uff1a\u6570\u7ec4\u540d[\u7d22\u5f15] = \u503c;\u5bf9\u8c61\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u53ef\u4ee5\u662f\u4efb\u4f55\u7c7b\u578b\u7684\u5bf9\u8c61\uff0c\u5305\u62ec\u5176\u4ed6\u6570\u7ec4\u3002\u6570\u7ec4\u7684\u5927\u5c0f\u5728\u521b\u5efa\u540e\u4e0d\u53ef\u66f4\u6539\u3002\u8bbf\u95ee\u8d85\u51fa\u8303\u56f4\u7684\u7d22\u5f15\u4f1a\u629b\u51fa arrayindexoutofboundsexception\u3002 Java \u4e2d\u5b9a\u4e49\u5bf9\u8c61\u6570\u7ec4 \u5b9a\u4e49\u5bf9\u8c61\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u65b9\u62ec\u53f7\u8bed\u6cd5\u6765\u5b9a\u4e49\u4e00\u4e2a\u5bf9\u8c61\u6570\u7ec4\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a \u7c7b\u578b[] \u6570\u7ec4\u540d = new \u7c7b\u578b[\u5927\u5c0f]; \u767b\u5f55\u540e\u590d\u5236 \u4f8b\u5982\uff0c\u8981\u5b9a\u4e49\u4e00\u4e2a\u5305\u542b 5 \u4e2a String \u5bf9\u8c61\u7684\u6570\u7ec4\uff0c\u60a8\u53ef\u4ee5\u8fd9\u6837\u5199\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b String[] myArray = new String[5]; \u767b\u5f55\u540e\u590d\u5236 \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20 \u60a8\u53ef\u4ee5\u4f7f\u7528\u65b9\u62ec\u53f7\u7d22\u5f15\u6765\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a \u6570\u7ec4\u540d[\u7d22\u5f15] \u767b\u5f55\u540e\u590d\u5236 \u4f8b\u5982\uff0c\u8981\u8bbf\u95ee myArray \u4e2d\u7b2c\u4e00\u4e2a\u5143\u7d20\uff0c\u60a8\u53ef\u4ee5\u8fd9\u6837\u5199\uff1a myArray[0] \u767b\u5f55\u540e\u590d\u5236 \u8bbe\u7f6e\u6570\u7ec4\u5143\u7d20 \u60a8\u8fd8\u53ef\u4ee5\u4f7f\u7528\u65b9\u62ec\u53f7\u7d22\u5f15\u6765\u8bbe\u7f6e\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a \u6570\u7ec4\u540d[\u7d22\u5f15] = \u503c; \u767b\u5f55\u540e\u590d\u5236 \u4f8b\u5982\uff0c\u8981\u5c06 myArray \u7b2c\u4e00\u4e2a\u5143\u7d20\u8bbe\u7f6e\u4e3a &#8220;Hello, World!&#8221;\uff0c\u60a8\u53ef\u4ee5\u8fd9\u6837\u5199\uff1a myArray[0] [&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-66627","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66627","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=66627"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66627\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66627"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66627"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66627"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}