{"id":65334,"date":"2025-05-03T13:39:54","date_gmt":"2025-05-03T05:39:54","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65334\/"},"modified":"2025-05-03T13:39:54","modified_gmt":"2025-05-03T05:39:54","slug":"java%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e5%8f%96%e6%95%b0-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65334\/","title":{"rendered":"java\u6570\u7ec4\u600e\u4e48\u53d6\u6570"},"content":{"rendered":"<blockquote><p>\n  \u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u65b9\u62ec\u53f7 ([]) \u8fd0\u7b97\u7b26\u548c\u6570\u7ec4\u7d22\u5f15\u4ece java \u6570\u7ec4\u4e2d\u63d0\u53d6\u5143\u7d20\uff1a\u786e\u5b9a\u8981\u63d0\u53d6\u5143\u7d20\u7684\u6570\u7ec4\u7d22\u5f15\uff08\u4ece 0 \u5f00\u59cb\uff09\u3002\u4f7f\u7528 arrayname[index] \u8bed\u6cd5\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/12\/2024111220515372788.jpg\" class=\"aligncenter\" title=\"java\u6570\u7ec4\u600e\u4e48\u53d6\u6570\u63d2\u56fe\" alt=\"java\u6570\u7ec4\u600e\u4e48\u53d6\u6570\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4ece Java \u6570\u7ec4\u4e2d\u63d0\u53d6\u5143\u7d20<\/strong><\/p>\n<p>Java \u6570\u7ec4\u662f\u4e00\u79cd\u6709\u5e8f\u7684\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u76f8\u540c\u7c7b\u578b\u7684\u6570\u636e\u9879\u3002\u8981\u4ece Java \u6570\u7ec4\u4e2d\u63d0\u53d6\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n<ol>\n<li> <strong>\u786e\u5b9a\u6570\u7ec4\u7684\u7d22\u5f15\uff1a<\/strong>\u7d22\u5f15\u662f\u4e00\u4e2a\u6574\u6570\uff0c\u6307\u793a\u6570\u7ec4\u4e2d\u8981\u63d0\u53d6\u5143\u7d20\u7684\u4f4d\u7f6e\u3002\u6570\u7ec4\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u56e0\u6b64\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\u4e3a 0\u3002<\/li>\n<li> <strong>\u4f7f\u7528\u65b9\u62ec\u53f7 ([]) \u8fd0\u7b97\u7b26\uff1a<\/strong>\u8bed\u6cd5\u4e3a arrayName[index]\u3002\u4f8b\u5982\uff0carray[0] \u5c06\u8bbf\u95ee\u6570\u7ec4 array \u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002<\/li>\n<\/ol>\n<p>\u4e0b\u9762\u662f\u4e00\u4e9b\u793a\u4f8b\u4ee3\u7801\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u4ece Java \u6570\u7ec4\u4e2d\u63d0\u53d6\u5143\u7d20\uff1a<\/p>\n<pre>int[] numbers = {10, 20, 30, 40, 50};\n\n\/\/ \u63d0\u53d6\u7d22\u5f15\u4e3a 2 \u7684\u5143\u7d20\nint thirdElement = numbers[2];\nSystem.out.println(thirdElement); \/\/ \u8f93\u51fa\uff1a30\n\n\/\/ \u63d0\u53d6\u7d22\u5f15\u4e3a 0 \u7684\u5143\u7d20\nint firstElement = numbers[0];\nSystem.out.println(firstElement); \/\/ \u8f93\u51fa\uff1a10\n\n\/\/ \u63d0\u53d6\u6700\u540e\u4e00\u4e2a\u5143\u7d20\uff08\u4f7f\u7528\u6570\u7ec4\u957f\u5ea6\u51cf\u4e00\uff09\nint lastElement = numbers[numbers.length - 1];\nSystem.out.println(lastElement); \/\/ \u8f93\u51fa\uff1a50<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li>\u6570\u7ec4\u7d22\u5f15\u5fc5\u987b\u5728 0 \u5230 arrayName.length &#8211; 1\uff08\u5305\u62ec\uff09\u7684\u8303\u56f4\u5185\u3002\u5426\u5219\uff0c\u4f1a\u629b\u51fa\u4e00\u4e2a IndexOutOfBoundsException \u5f02\u5e38\u3002<\/li>\n<li>\u6570\u7ec4\u5143\u7d20\u53ef\u4ee5\u662f\u4efb\u4f55\u6570\u636e\u7c7b\u578b\uff0c\u5305\u62ec\u57fa\u672c\u7c7b\u578b\uff08\u5982 int \u548c double\uff09\u548c\u5f15\u7528\u7c7b\u578b\uff08\u5982 String \u548c Object\uff09\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u600e\u4e48\u53d6\u6570\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>\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u65b9\u62ec\u53f7 ([]) \u8fd0\u7b97\u7b26\u548c\u6570\u7ec4\u7d22\u5f15\u4ece java \u6570\u7ec4\u4e2d\u63d0\u53d6\u5143\u7d20\uff1a\u786e\u5b9a\u8981\u63d0\u53d6\u5143\u7d20\u7684\u6570\u7ec4\u7d22\u5f15\uff08\u4ece 0 \u5f00\u59cb\uff09\u3002\u4f7f\u7528 arrayname[index] \u8bed\u6cd5\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u3002 \u5982\u4f55\u4ece Java \u6570\u7ec4\u4e2d\u63d0\u53d6\u5143\u7d20 Java \u6570\u7ec4\u662f\u4e00\u79cd\u6709\u5e8f\u7684\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u76f8\u540c\u7c7b\u578b\u7684\u6570\u636e\u9879\u3002\u8981\u4ece Java \u6570\u7ec4\u4e2d\u63d0\u53d6\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a \u786e\u5b9a\u6570\u7ec4\u7684\u7d22\u5f15\uff1a\u7d22\u5f15\u662f\u4e00\u4e2a\u6574\u6570\uff0c\u6307\u793a\u6570\u7ec4\u4e2d\u8981\u63d0\u53d6\u5143\u7d20\u7684\u4f4d\u7f6e\u3002\u6570\u7ec4\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u56e0\u6b64\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\u4e3a 0\u3002 \u4f7f\u7528\u65b9\u62ec\u53f7 ([]) \u8fd0\u7b97\u7b26\uff1a\u8bed\u6cd5\u4e3a arrayName[index]\u3002\u4f8b\u5982\uff0carray[0] \u5c06\u8bbf\u95ee\u6570\u7ec4 array \u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002 \u4e0b\u9762\u662f\u4e00\u4e9b\u793a\u4f8b\u4ee3\u7801\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u4ece Java \u6570\u7ec4\u4e2d\u63d0\u53d6\u5143\u7d20\uff1a int[] numbers = {10, 20, 30, 40, 50}; \/\/ \u63d0\u53d6\u7d22\u5f15\u4e3a 2 \u7684\u5143\u7d20 int thirdElement = numbers[2]; System.out.println(thirdElement); \/\/ \u8f93\u51fa\uff1a30 \/\/ \u63d0\u53d6\u7d22\u5f15\u4e3a 0 \u7684\u5143\u7d20 int firstElement [&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-65334","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65334","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=65334"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65334\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65334"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65334"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}