{"id":64107,"date":"2025-05-03T12:02:42","date_gmt":"2025-05-03T04:02:42","guid":{"rendered":"https:\/\/fwq.ai\/blog\/64107\/"},"modified":"2025-05-03T12:02:42","modified_gmt":"2025-05-03T04:02:42","slug":"java%e5%ae%9a%e4%b9%89%e7%b1%bb%e4%b8%ad%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/64107\/","title":{"rendered":"java\u5b9a\u4e49\u7c7b\u4e2d\u5982\u4f55\u4f7f\u7528\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u4f7f\u7528\u6570\u7ec4\u7c7b\u5b9a\u4e49\u6210\u5458\u53d8\u91cf\u9700\u8981\u9075\u5faa\u4e09\u4e2a\u6b65\u9aa4\uff1a\u4f7f\u7528\u65b9\u62ec\u53f7\u8fd0\u7b97\u7b26 [] \u58f0\u660e\u6570\u7ec4\u7c7b\u578b\u3002\u4f7f\u7528 new \u5173\u952e\u5b57\u548c\u5143\u7d20\u503c\u521d\u59cb\u5316\u6570\u7ec4\u3002\u5c06\u6570\u7ec4\u58f0\u660e\u4e3a\u7c7b\u7684\u6210\u5458\u53d8\u91cf\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/02\/2024110213482371745.jpg\" class=\"aligncenter\" title=\"java\u5b9a\u4e49\u7c7b\u4e2d\u5982\u4f55\u4f7f\u7528\u6570\u7ec4\u63d2\u56fe\" alt=\"java\u5b9a\u4e49\u7c7b\u4e2d\u5982\u4f55\u4f7f\u7528\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u4e2d\u6570\u7ec4\u7684\u7c7b\u5b9a\u4e49<\/strong><\/p>\n<p><strong>\u5f15\u8a00\uff1a<\/strong><br \/>\u5728 Java \u4e2d\uff0c\u6570\u7ec4\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684\u591a\u4e2a\u5143\u7d20\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u6570\u7ec4\u5728 Java \u7c7b\u4e2d\u5b9a\u4e49\u4e00\u4e2a\u6210\u5458\u53d8\u91cf\u3002<\/p>\n<p><strong>\u6b65\u9aa4\uff1a<\/strong><\/p>\n<ol>\n<li> <strong>\u58f0\u660e\u6570\u7ec4\u7c7b\u578b\uff1a<\/strong><br \/>\u4f7f\u7528 [] \u8fd0\u7b97\u7b26\u5728\u6570\u636e\u7c7b\u578b\u540e\u9762\u58f0\u660e\u6570\u7ec4\u7c7b\u578b\u3002\u4f8b\u5982\uff1aint[] numbers;<\/li>\n<li> <strong>\u521d\u59cb\u5316\u6570\u7ec4\uff1a<\/strong><br \/>\u53ef\u4ee5\u4f7f\u7528 new \u5173\u952e\u5b57\u548c\u5143\u7d20\u503c\u6765\u521d\u59cb\u5316\u6570\u7ec4\u3002\u4f8b\u5982\uff1aint[] numbers = {1, 2, 3};<\/li>\n<\/ol>\n<p><strong>\u6210\u5458\u53d8\u91cf\u793a\u4f8b\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>public class MyClass {\n    \/\/ \u58f0\u660e\u4e00\u4e2a\u6574\u578b\u6570\u7ec4\u6210\u5458\u53d8\u91cf\n    private int[] numbers;\n    \n    \/\/ \u521d\u59cb\u5316\u6570\u7ec4\n    public MyClass() {\n        numbers = new int[]{1, 2, 3};\n    }\n    \n    \/\/ \u5176\u4ed6\u65b9\u6cd5\u548c\u4ee3\u7801...\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1a<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u7d22\u5f15\u6765\u8bbf\u95ee\u548c\u4fee\u6539\u6570\u7ec4\u5143\u7d20\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>\/\/ \u83b7\u53d6\u6570\u7ec4\u7b2c\u4e00\u4e2a\u5143\u7d20\nint firstNumber = numbers[0];\n\n\/\/ \u4fee\u6539\u6570\u7ec4\u7b2c\u4e8c\u4e2a\u5143\u7d20\nnumbers[1] = 5;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u91cd\u8981\u63d0\u793a\uff1a<\/strong><\/p>\n<ul>\n<li>\u6570\u7ec4\u5927\u5c0f\u5728\u521b\u5efa\u540e\u662f\u56fa\u5b9a\u7684\uff0c\u65e0\u6cd5\u66f4\u6539\u3002<\/li>\n<li>\u6570\u7ec4\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u56e0\u6b64\u7b2c\u4e00\u4e2a\u7d22\u5f15\u4e3a 0\uff0c\u6700\u540e\u4e00\u4e2a\u7d22\u5f15\u4e3a length &#8211; 1\uff08\u5176\u4e2d length \u662f\u6570\u7ec4\u957f\u5ea6\uff09\u3002<\/li>\n<li>\u8d85\u51fa\u6570\u7ec4\u7d22\u5f15\u8303\u56f4\u7684\u8bbf\u95ee\u4f1a\u5bfc\u81f4 ArrayIndexOutOfBoundsException\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u5b9a\u4e49\u7c7b\u4e2d\u5982\u4f55\u4f7f\u7528\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\u6570\u7ec4\u7c7b\u5b9a\u4e49\u6210\u5458\u53d8\u91cf\u9700\u8981\u9075\u5faa\u4e09\u4e2a\u6b65\u9aa4\uff1a\u4f7f\u7528\u65b9\u62ec\u53f7\u8fd0\u7b97\u7b26 [] \u58f0\u660e\u6570\u7ec4\u7c7b\u578b\u3002\u4f7f\u7528 new \u5173\u952e\u5b57\u548c\u5143\u7d20\u503c\u521d\u59cb\u5316\u6570\u7ec4\u3002\u5c06\u6570\u7ec4\u58f0\u660e\u4e3a\u7c7b\u7684\u6210\u5458\u53d8\u91cf\u3002 Java \u4e2d\u6570\u7ec4\u7684\u7c7b\u5b9a\u4e49 \u5f15\u8a00\uff1a\u5728 Java \u4e2d\uff0c\u6570\u7ec4\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684\u591a\u4e2a\u5143\u7d20\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u6570\u7ec4\u5728 Java \u7c7b\u4e2d\u5b9a\u4e49\u4e00\u4e2a\u6210\u5458\u53d8\u91cf\u3002 \u6b65\u9aa4\uff1a \u58f0\u660e\u6570\u7ec4\u7c7b\u578b\uff1a\u4f7f\u7528 [] \u8fd0\u7b97\u7b26\u5728\u6570\u636e\u7c7b\u578b\u540e\u9762\u58f0\u660e\u6570\u7ec4\u7c7b\u578b\u3002\u4f8b\u5982\uff1aint[] numbers; \u521d\u59cb\u5316\u6570\u7ec4\uff1a\u53ef\u4ee5\u4f7f\u7528 new \u5173\u952e\u5b57\u548c\u5143\u7d20\u503c\u6765\u521d\u59cb\u5316\u6570\u7ec4\u3002\u4f8b\u5982\uff1aint[] numbers = {1, 2, 3}; \u6210\u5458\u53d8\u91cf\u793a\u4f8b\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b public class MyClass { \/\/ \u58f0\u660e\u4e00\u4e2a\u6574\u578b\u6570\u7ec4\u6210\u5458\u53d8\u91cf private int[] numbers; \/\/ \u521d\u59cb\u5316\u6570\u7ec4 public MyClass() { numbers = new int[]{1, 2, 3}; } \/\/ \u5176\u4ed6\u65b9\u6cd5\u548c\u4ee3\u7801&#8230; } \u767b\u5f55\u540e\u590d\u5236 \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1a [&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-64107","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64107","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=64107"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64107\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=64107"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=64107"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=64107"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}