{"id":38315,"date":"2024-11-26T10:01:52","date_gmt":"2024-11-26T02:01:52","guid":{"rendered":"https:\/\/fwq.ai\/blog\/38315\/"},"modified":"2024-11-26T10:01:52","modified_gmt":"2024-11-26T02:01:52","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%85%83%e7%b4%a0","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/38315\/","title":{"rendered":"java\u600e\u4e48\u53d6\u6570\u7ec4\u91cc\u9762\u7684\u5143\u7d20"},"content":{"rendered":"<blockquote><p>\n  \u4ece java \u6570\u7ec4\u4e2d\u83b7\u53d6\u5143\u7d20\u7684\u65b9\u6cd5\uff1a\u4f7f\u7528\u7d22\u5f15\uff1a\u4f7f\u7528\u65b9\u62ec\u53f7\u8bed\u6cd5\u76f4\u63a5\u8bbf\u95ee\u5143\u7d20\u3002\u4f7f\u7528 for-each \u5faa\u73af\uff1a\u904d\u5386\u6570\u7ec4\u5e76\u5206\u914d\u5143\u7d20\u5230\u53d8\u91cf\u3002\u4f7f\u7528 arrays.tostring()\uff1a\u8fd4\u56de\u6570\u7ec4\u7684\u5b57\u7b26\u4e32\u8868\u793a\uff0c\u7136\u540e\u62c6\u5206\u5e76\u89e3\u6790\u6765\u83b7\u53d6\u5355\u4e2a\u5143\u7d20\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/14\/2024111412580920339.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u53d6\u6570\u7ec4\u91cc\u9762\u7684\u5143\u7d20\u63d2\u56fe\" alt=\"java\u600e\u4e48\u53d6\u6570\u7ec4\u91cc\u9762\u7684\u5143\u7d20\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4ece Java \u6570\u7ec4\u4e2d\u83b7\u53d6\u5143\u7d20<\/strong><\/p>\n<p>Java \u6570\u7ec4\u662f\u4e00\u79cd\u53ef\u4ee5\u5b58\u50a8\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684\u591a\u4e2a\u503c\u7684\u6570\u636e\u7ed3\u6784\u3002\u8981\u4ece Java \u6570\u7ec4\u4e2d\u83b7\u53d6\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n<p><strong>\u65b9\u6cd5 1\uff1a\u4f7f\u7528\u7d22\u5f15<\/strong><br \/>\u8fd9\u662f\u6700\u76f4\u63a5\u7684\u65b9\u6cd5\u3002\u6bcf\u4e2a\u6570\u7ec4\u5143\u7d20\u90fd\u6709\u4e0e\u5176\u5173\u8054\u7684\u7d22\u5f15\uff0c\u4ece 0 \u5f00\u59cb\u3002\u8981\u83b7\u53d6\u7279\u5b9a\u7d22\u5f15\u5904\u7684\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u65b9\u62ec\u53f7\u8bed\u6cd5\uff1a<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\nint element = numbers[2]; \/\/ \u8f93\u51fa\uff1a3<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u65b9\u6cd5 2\uff1a\u4f7f\u7528 for-each \u5faa\u73af<\/strong><br \/>for-each \u5faa\u73af\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u5e76\u5c06\u5b83\u4eec\u5206\u914d\u7ed9\u4e00\u4e2a\u53d8\u91cf\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\nfor (int number : numbers) {\n    System.out.println(number); \/\/ \u8f93\u51fa\uff1a1, 2, 3, 4, 5\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u65b9\u6cd5 3\uff1a\u4f7f\u7528 Arrays.toString()`<\/strong><br \/>Arrays.toString() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u5305\u542b\u6240\u6709\u6570\u7ec4\u5143\u7d20\u7684\u5b57\u7b26\u4e32\u8868\u793a\u5f62\u5f0f\u3002\u8981\u83b7\u53d6\u5355\u4e2a\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528 split() \u65b9\u6cd5\u5c06\u5176\u62c6\u5206\u4e3a\uff1a<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\nString[] elements = Arrays.toString(numbers).split(\",\");\nint element = Integer.parseInt(elements[2]); \/\/ \u8f93\u51fa\uff1a3<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>\u4e00\u5b9a\u8981\u8bb0\u4f4f\u6570\u7ec4\u7684\u7d22\u5f15\u4ece 0 \u5f00\u59cb\u3002<\/li>\n<li>\u5c1d\u8bd5\u83b7\u53d6\u8d85\u51fa\u6570\u7ec4\u8303\u56f4\u7684\u5143\u7d20\u4f1a\u629b\u51fa IndexOutOfBoundsException\u3002<\/li>\n<li>\u4f7f\u7528 for-each \u5faa\u73af\u4e0d\u80fd\u4fee\u6539\u6570\u7ec4\u5143\u7d20\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u53d6\u6570\u7ec4\u91cc\u9762\u7684\u5143\u7d20\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>\u4ece java \u6570\u7ec4\u4e2d\u83b7\u53d6\u5143\u7d20\u7684\u65b9\u6cd5\uff1a\u4f7f\u7528\u7d22\u5f15\uff1a\u4f7f\u7528\u65b9\u62ec\u53f7\u8bed\u6cd5\u76f4\u63a5\u8bbf\u95ee\u5143\u7d20\u3002\u4f7f\u7528 for-each \u5faa\u73af\uff1a\u904d\u5386\u6570\u7ec4\u5e76\u5206\u914d\u5143\u7d20\u5230\u53d8\u91cf\u3002\u4f7f\u7528 arrays.tostring()\uff1a\u8fd4\u56de\u6570\u7ec4\u7684\u5b57\u7b26\u4e32\u8868\u793a\uff0c\u7136\u540e\u62c6\u5206\u5e76\u89e3\u6790\u6765\u83b7\u53d6\u5355\u4e2a\u5143\u7d20\u3002 \u5982\u4f55\u4ece Java \u6570\u7ec4\u4e2d\u83b7\u53d6\u5143\u7d20 Java \u6570\u7ec4\u662f\u4e00\u79cd\u53ef\u4ee5\u5b58\u50a8\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684\u591a\u4e2a\u503c\u7684\u6570\u636e\u7ed3\u6784\u3002\u8981\u4ece Java \u6570\u7ec4\u4e2d\u83b7\u53d6\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a \u65b9\u6cd5 1\uff1a\u4f7f\u7528\u7d22\u5f15\u8fd9\u662f\u6700\u76f4\u63a5\u7684\u65b9\u6cd5\u3002\u6bcf\u4e2a\u6570\u7ec4\u5143\u7d20\u90fd\u6709\u4e0e\u5176\u5173\u8054\u7684\u7d22\u5f15\uff0c\u4ece 0 \u5f00\u59cb\u3002\u8981\u83b7\u53d6\u7279\u5b9a\u7d22\u5f15\u5904\u7684\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u65b9\u62ec\u53f7\u8bed\u6cd5\uff1a int[] numbers = {1, 2, 3, 4, 5}; int element = numbers[2]; \/\/ \u8f93\u51fa\uff1a3 \u767b\u5f55\u540e\u590d\u5236 \u65b9\u6cd5 2\uff1a\u4f7f\u7528 for-each \u5faa\u73affor-each \u5faa\u73af\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u5e76\u5c06\u5b83\u4eec\u5206\u914d\u7ed9\u4e00\u4e2a\u53d8\u91cf\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = {1, 2, 3, 4, 5}; for (int number : numbers) { System.out.println(number); \/\/ \u8f93\u51fa\uff1a1, [&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-38315","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38315","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=38315"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38315\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=38315"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=38315"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=38315"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}