{"id":64267,"date":"2025-05-03T10:11:37","date_gmt":"2025-05-03T02:11:37","guid":{"rendered":"https:\/\/fwq.ai\/blog\/64267\/"},"modified":"2025-05-03T10:11:37","modified_gmt":"2025-05-03T02:11:37","slug":"java%e6%80%8e%e4%b9%88%e5%90%91%e6%95%b0%e7%bb%84%e9%87%8c%e5%8a%a0%e5%85%a5%e5%80%bc-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/64267\/","title":{"rendered":"java\u600e\u4e48\u5411\u6570\u7ec4\u91cc\u52a0\u5165\u503c"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u5411\u6570\u7ec4\u6dfb\u52a0\u503c\u4e3b\u8981\u6709\u4ee5\u4e0b\u65b9\u6cd5\uff1a\u57fa\u672c\u6570\u636e\u7c7b\u578b\u6570\u7ec4\uff1a\u4f7f\u7528 = \u8fd0\u7b97\u7b26\u6216 arrays.fill() \u65b9\u6cd5\u3002\u5bf9\u8c61\u6570\u7ec4\uff1a\u4f7f\u7528 new \u5173\u952e\u5b57\u6216 arrays.copyof() \u65b9\u6cd5\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/03\/2024110302281654875.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u5411\u6570\u7ec4\u91cc\u52a0\u5165\u503c\u63d2\u56fe\" alt=\"java\u600e\u4e48\u5411\u6570\u7ec4\u91cc\u52a0\u5165\u503c\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u5411\u6570\u7ec4\u6dfb\u52a0\u503c<\/strong><\/p>\n<p>\u5728 Java \u4e2d\u5411\u6570\u7ec4\u6dfb\u52a0\u503c\u6709\u51e0\u79cd\u65b9\u6cd5\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u6570\u7ec4\u7684\u7c7b\u578b\u3002\u5bf9\u4e8e\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff08\u5982 int[]\uff09\uff0c\u53ef\u4ee5\u4f7f\u7528 = \u8fd0\u7b97\u7b26\u6216 Arrays.fill() \u65b9\u6cd5\u3002\u5bf9\u4e8e\u5bf9\u8c61\u6570\u7ec4\uff08\u5982 String[]\uff09\uff0c\u5219\u9700\u8981\u4f7f\u7528 new \u5173\u952e\u5b57\u6216 Arrays.copyOf() \u65b9\u6cd5\u3002<\/p>\n<p><strong>\u57fa\u672c\u6570\u636e\u7c7b\u578b\u6570\u7ec4<\/strong><\/p>\n<ul>\n<li><strong>\u4f7f\u7528 = \u8fd0\u7b97\u7b26\uff1a<\/strong><\/li>\n<\/ul>\n<pre>int[] numbers = new int[5];\nnumbers[0] = 10;\nnumbers[1] = 20;\n\/\/ \u7b49\u7b49<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li><strong>\u4f7f\u7528 Arrays.fill() \u65b9\u6cd5\uff1a<\/strong><\/li>\n<\/ul>\n<pre>int[] numbers = new int[5];\nArrays.fill(numbers, 10);  \/\/ \u7528 10 \u586b\u5145\u6574\u4e2a\u6570\u7ec4<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u5bf9\u8c61\u6570\u7ec4<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li><strong>\u4f7f\u7528 new \u5173\u952e\u5b57\uff1a<\/strong><\/li>\n<\/ul>\n<pre>String[] names = new String[5];\nnames[0] = \"John\";\nnames[1] = \"Mary\";\n\/\/ \u7b49\u7b49<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li><strong>\u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5\uff1a<\/strong><\/li>\n<\/ul>\n<pre>String[] names = {\"John\", \"Mary\"};\nString[] newNames = Arrays.copyOf(names, 5);  \/\/ \u590d\u5236\u5e76\u6269\u5c55\u6570\u7ec4\u5230\u5927\u5c0f 5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a Java \u7a0b\u5e8f\uff0c\u6f14\u793a\u4e86\u5982\u4f55\u5728\u6570\u7ec4\u4e2d\u6dfb\u52a0\u503c\uff1a<\/p>\n<pre>public class Main {\n    public static void main(String[] args) {\n        \/\/ \u57fa\u672c\u6570\u636e\u7c7b\u578b\u6570\u7ec4\n        int[] numbers = new int[5];\n        numbers[0] = 10;\n        numbers[1] = 20;\n\n        \/\/ \u5bf9\u8c61\u6570\u7ec4\n        String[] names = new String[5];\n        names[0] = \"John\";\n        names[1] = \"Mary\";\n\n        \/\/ \u8f93\u51fa\u6570\u7ec4\u503c\n        System.out.println(\"\u6574\u578b\u6570\u7ec4\uff1a\");\n        for (int number : numbers) {\n            System.out.println(number);\n        }\n\n        System.out.println(\"\u5b57\u7b26\u4e32\u6570\u7ec4\uff1a\");\n        for (String name : names) {\n            System.out.println(name);\n        }\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5411\u6570\u7ec4\u91cc\u52a0\u5165\u503c\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\u5411\u6570\u7ec4\u6dfb\u52a0\u503c\u4e3b\u8981\u6709\u4ee5\u4e0b\u65b9\u6cd5\uff1a\u57fa\u672c\u6570\u636e\u7c7b\u578b\u6570\u7ec4\uff1a\u4f7f\u7528 = \u8fd0\u7b97\u7b26\u6216 arrays.fill() \u65b9\u6cd5\u3002\u5bf9\u8c61\u6570\u7ec4\uff1a\u4f7f\u7528 new \u5173\u952e\u5b57\u6216 arrays.copyof() \u65b9\u6cd5\u3002 \u5982\u4f55\u5728 Java \u4e2d\u5411\u6570\u7ec4\u6dfb\u52a0\u503c \u5728 Java \u4e2d\u5411\u6570\u7ec4\u6dfb\u52a0\u503c\u6709\u51e0\u79cd\u65b9\u6cd5\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u6570\u7ec4\u7684\u7c7b\u578b\u3002\u5bf9\u4e8e\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff08\u5982 int[]\uff09\uff0c\u53ef\u4ee5\u4f7f\u7528 = \u8fd0\u7b97\u7b26\u6216 Arrays.fill() \u65b9\u6cd5\u3002\u5bf9\u4e8e\u5bf9\u8c61\u6570\u7ec4\uff08\u5982 String[]\uff09\uff0c\u5219\u9700\u8981\u4f7f\u7528 new \u5173\u952e\u5b57\u6216 Arrays.copyOf() \u65b9\u6cd5\u3002 \u57fa\u672c\u6570\u636e\u7c7b\u578b\u6570\u7ec4 \u4f7f\u7528 = \u8fd0\u7b97\u7b26\uff1a int[] numbers = new int[5]; numbers[0] = 10; numbers[1] = 20; \/\/ \u7b49\u7b49 \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528 Arrays.fill() \u65b9\u6cd5\uff1a int[] numbers = new int[5]; Arrays.fill(numbers, 10); [&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-64267","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64267","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=64267"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64267\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=64267"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=64267"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=64267"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}