{"id":39507,"date":"2024-11-26T16:42:58","date_gmt":"2024-11-26T08:42:58","guid":{"rendered":"https:\/\/fwq.ai\/blog\/39507\/"},"modified":"2024-11-26T16:42:58","modified_gmt":"2024-11-26T08:42:58","slug":"java%e6%80%8e%e4%b9%88%e5%b0%86%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%e6%b8%85%e7%a9%ba","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/39507\/","title":{"rendered":"Java\u600e\u4e48\u5c06\u4e8c\u7ef4\u6570\u7ec4\u6e05\u7a7a"},"content":{"rendered":"<blockquote><p>\n  \u8981\u6e05\u7a7a java \u4e2d\u7684\u4e8c\u7ef4\u6570\u7ec4\uff1a\u4f7f\u7528 null \u8986\u76d6\u6570\u7ec4\u5143\u7d20\uff08\u63a8\u8350\uff09\u3002\u4f7f\u7528 arrays.fill() \u586b\u5145\u6570\u7ec4\uff08\u65b9\u4fbf\uff09\u3002\u91cd\u65b0\u5206\u914d\u65b0\u6570\u7ec4\uff08\u9700\u8981\u91cd\u65b0\u58f0\u660e\u6570\u7ec4\u53d8\u91cf\uff09\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111611575842406.jpg\" class=\"aligncenter\" title=\"Java\u600e\u4e48\u5c06\u4e8c\u7ef4\u6570\u7ec4\u6e05\u7a7a\u63d2\u56fe\" alt=\"Java\u600e\u4e48\u5c06\u4e8c\u7ef4\u6570\u7ec4\u6e05\u7a7a\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u6e05\u7a7a Java \u4e2d\u7684\u4e8c\u7ef4\u6570\u7ec4<\/strong><\/p>\n<p>\u8981\u6e05\u7a7a Java \u4e2d\u7684\u4e8c\u7ef4\u6570\u7ec4\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n<p><strong>\u65b9\u6cd5 1\uff1a\u4f7f\u7528 null \u8986\u76d6\u6570\u7ec4\u5143\u7d20<\/strong><\/p>\n<pre>int[][] array = new int[3][4];\n\nfor (int i = 0; i &lt; array.length; i++) {\n    for (int j = 0; j &lt; array[i].length; j++) {\n        array[i][j] = 0;\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u65b9\u6cd5 2\uff1a\u4f7f\u7528 Arrays.fill() \u586b\u5145\u6570\u7ec4<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[][] array = new int[3][4];\n\nArrays.fill(array, 0);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u4e24\u79cd\u65b9\u6cd5\u90fd\u4f1a\u8986\u76d6\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\u4e3a 0\uff0c\u4ece\u800c\u6e05\u7a7a\u5b83\u3002<\/p>\n<p><strong>\u65b9\u6cd5 3\uff1a\u91cd\u65b0\u5206\u914d\u65b0\u6570\u7ec4<\/strong><\/p>\n<pre>int[][] array = new int[3][4];\narray = null;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u91cd\u65b0\u5206\u914d\u7a7a\u503c\u5c06\u91ca\u653e\u65e7\u6570\u7ec4\u5e76\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u7a7a\u6570\u7ec4\u3002\u4f46\u662f\uff0c\u8fd9\u79cd\u65b9\u6cd5\u9700\u8981\u91cd\u65b0\u58f0\u660e\u6570\u7ec4\u53d8\u91cf\uff0c\u800c\u5728\u5176\u4ed6\u65b9\u6cd5\u4e2d\u4e0d\u9700\u8981\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fJava\u600e\u4e48\u5c06\u4e8c\u7ef4\u6570\u7ec4\u6e05\u7a7a\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>\u8981\u6e05\u7a7a java \u4e2d\u7684\u4e8c\u7ef4\u6570\u7ec4\uff1a\u4f7f\u7528 null \u8986\u76d6\u6570\u7ec4\u5143\u7d20\uff08\u63a8\u8350\uff09\u3002\u4f7f\u7528 arrays.fill() \u586b\u5145\u6570\u7ec4\uff08\u65b9\u4fbf\uff09\u3002\u91cd\u65b0\u5206\u914d\u65b0\u6570\u7ec4\uff08\u9700\u8981\u91cd\u65b0\u58f0\u660e\u6570\u7ec4\u53d8\u91cf\uff09\u3002 \u5982\u4f55\u6e05\u7a7a Java \u4e2d\u7684\u4e8c\u7ef4\u6570\u7ec4 \u8981\u6e05\u7a7a Java \u4e2d\u7684\u4e8c\u7ef4\u6570\u7ec4\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a \u65b9\u6cd5 1\uff1a\u4f7f\u7528 null \u8986\u76d6\u6570\u7ec4\u5143\u7d20 int[][] array = new int[3][4]; for (int i = 0; i &lt; array.length; i++) { for (int j = 0; j &lt; array[i].length; j++) { array[i][j] = 0; } } \u767b\u5f55\u540e\u590d\u5236 \u65b9\u6cd5 2\uff1a\u4f7f\u7528 Arrays.fill() \u586b\u5145\u6570\u7ec4 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[][] array [&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-39507","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39507","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=39507"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39507\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=39507"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=39507"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=39507"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}