{"id":38666,"date":"2024-11-26T16:45:31","date_gmt":"2024-11-26T08:45:31","guid":{"rendered":"https:\/\/fwq.ai\/blog\/38666\/"},"modified":"2024-11-26T16:45:31","modified_gmt":"2024-11-26T08:45:31","slug":"java%e6%80%8e%e4%b9%88%e5%8f%96%e6%95%b0%e7%bb%84%e9%87%8c%e9%9d%a2%e7%9a%84%e5%80%bc","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/38666\/","title":{"rendered":"java\u600e\u4e48\u53d6\u6570\u7ec4\u91cc\u9762\u7684\u503c"},"content":{"rendered":"<blockquote><p>\n  \u901a\u8fc7\u65b9\u62ec\u53f7\u548c\u7d22\u5f15\u53ef\u83b7\u53d6 java \u6570\u7ec4\u5143\u7d20\u3002\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u5982\uff1aint[] numbers = {1, 2, 3}; int firstelement = numbers[0];\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/15\/2024111504394856411.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u53d6\u6570\u7ec4\u91cc\u9762\u7684\u503c\u63d2\u56fe\" alt=\"java\u600e\u4e48\u53d6\u6570\u7ec4\u91cc\u9762\u7684\u503c\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u83b7\u53d6 Java \u6570\u7ec4\u4e2d\u7684\u5143\u7d20<\/strong><\/p>\n<p>\u6570\u7ec4\u662f\u4e00\u79cd\u6709\u5e8f\u7684\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u540c\u7c7b\u578b\u5143\u7d20\u7684\u96c6\u5408\u3002\u5728 Java \u4e2d\uff0c\u901a\u8fc7\u7d22\u5f15\u53ef\u4ee5\u8f7b\u677e\u8bbf\u95ee\u548c\u4fee\u6539\u6570\u7ec4\u5143\u7d20\u3002<\/p>\n<p><strong>\u83b7\u53d6\u5143\u7d20<\/strong><\/p>\n<p>\u8981\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u65b9\u62ec\u53f7 ([])\uff0c\u540e\u8ddf\u5143\u7d20\u7684\u7d22\u5f15\u3002\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u8868\u793a\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\nint firstElement = numbers[0]; \/\/ \u83b7\u53d6\u7b2c\u4e00\u4e2a\u5143\u7d20\nint lastElement = numbers[numbers.length - 1]; \/\/ \u83b7\u53d6\u6700\u540e\u4e00\u4e2a\u5143\u7d20<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u8be6\u7ec6\u8bf4\u660e\uff1a<\/strong><\/p>\n<ul>\n<li>numbers \u662f\u4e00\u4e2a\u5b58\u50a8\u6574\u578b\u5143\u7d20\u7684\u6570\u7ec4\u3002<\/li>\n<li>firstElement \u53d8\u91cf\u5b58\u50a8\u6570\u7ec4\u4e2d\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u503c (1)\u3002<\/li>\n<li>lastElement \u53d8\u91cf\u5b58\u50a8\u6570\u7ec4\u4e2d\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u7684\u503c (5)\u3002<\/li>\n<li>numbers.length \u8fd4\u56de\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u7528\u4e8e\u8ba1\u7b97\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\u3002<\/li>\n<\/ul>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>\u5982\u679c\u60a8\u5c1d\u8bd5\u8bbf\u95ee\u8d85\u51fa\u6570\u7ec4\u8303\u56f4\u7684\u7d22\u5f15\uff0c\u5219\u4f1a\u5bfc\u81f4 ArrayIndexOutOfBoundsException \u5f02\u5e38\u3002<\/li>\n<li>\u6570\u7ec4\u5143\u7d20\u53ef\u4ee5\u662f\u4efb\u4f55\u7c7b\u578b\uff0c\u5305\u62ec\u57fa\u672c\u7c7b\u578b\u3001\u5bf9\u8c61\u548c\u6570\u7ec4\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u53d6\u6570\u7ec4\u91cc\u9762\u7684\u503c\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u901a\u8fc7\u65b9\u62ec\u53f7\u548c\u7d22\u5f15\u53ef\u83b7\u53d6 java \u6570\u7ec4\u5143\u7d20\u3002\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u5982\uff1aint[] numbers = {1, 2, 3}; int firstelement = numbers[0]; \u5982\u4f55\u83b7\u53d6 Java \u6570\u7ec4\u4e2d\u7684\u5143\u7d20 \u6570\u7ec4\u662f\u4e00\u79cd\u6709\u5e8f\u7684\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u540c\u7c7b\u578b\u5143\u7d20\u7684\u96c6\u5408\u3002\u5728 Java \u4e2d\uff0c\u901a\u8fc7\u7d22\u5f15\u53ef\u4ee5\u8f7b\u677e\u8bbf\u95ee\u548c\u4fee\u6539\u6570\u7ec4\u5143\u7d20\u3002 \u83b7\u53d6\u5143\u7d20 \u8981\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u65b9\u62ec\u53f7 ([])\uff0c\u540e\u8ddf\u5143\u7d20\u7684\u7d22\u5f15\u3002\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u8868\u793a\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = {1, 2, 3, 4, 5}; int firstElement = numbers[0]; \/\/ \u83b7\u53d6\u7b2c\u4e00\u4e2a\u5143\u7d20 int lastElement = numbers[numbers.length &#8211; 1]; \/\/ \u83b7\u53d6\u6700\u540e\u4e00\u4e2a\u5143\u7d20 \u767b\u5f55\u540e\u590d\u5236 \u8be6\u7ec6\u8bf4\u660e\uff1a numbers \u662f\u4e00\u4e2a\u5b58\u50a8\u6574\u578b\u5143\u7d20\u7684\u6570\u7ec4\u3002 firstElement \u53d8\u91cf\u5b58\u50a8\u6570\u7ec4\u4e2d\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u503c (1)\u3002 [&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-38666","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38666","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=38666"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38666\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=38666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=38666"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=38666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}