{"id":34966,"date":"2024-11-26T12:44:33","date_gmt":"2024-11-26T04:44:33","guid":{"rendered":"https:\/\/fwq.ai\/blog\/34966\/"},"modified":"2024-11-26T12:44:33","modified_gmt":"2024-11-26T04:44:33","slug":"java%e6%95%b0%e7%bb%84%e4%b8%ad%e7%9a%84%e5%88%9d%e5%a7%8b%e6%95%b0%e6%8d%ae%e6%80%8e%e4%b9%88%e5%81%9a","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/34966\/","title":{"rendered":"java\u6570\u7ec4\u4e2d\u7684\u521d\u59cb\u6570\u636e\u600e\u4e48\u505a"},"content":{"rendered":"<blockquote><p>\n  \u5982\u4f55\u4e3a java \u6570\u7ec4\u8d4b\u4e88\u521d\u59cb\u6570\u636e\uff1f\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u5b57\u9762\u91cf\u3001\u6570\u7ec4\u6784\u9020\u51fd\u6570\u3001\u5faa\u73af\u3001arrays.fill() \u65b9\u6cd5\u6216 system.arraycopy() \u65b9\u6cd5\u4e3a java \u6570\u7ec4\u8d4b\u4e88\u521d\u59cb\u6570\u636e\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/03\/2024110307125454230.jpg\" class=\"aligncenter\" title=\"java\u6570\u7ec4\u4e2d\u7684\u521d\u59cb\u6570\u636e\u600e\u4e48\u505a\u63d2\u56fe\" alt=\"java\u6570\u7ec4\u4e2d\u7684\u521d\u59cb\u6570\u636e\u600e\u4e48\u505a\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u6570\u7ec4\u7684\u521d\u59cb\u6570\u636e<\/strong><\/p>\n<p>\u5f53\u521b\u5efa Java \u6570\u7ec4\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u4e3a\u5176\u8d4b\u4e88\u521d\u59cb\u6570\u636e\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528\u6570\u7ec4\u5b57\u9762\u91cf\uff1a<\/strong><\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528\u6570\u7ec4\u6784\u9020\u51fd\u6570\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] numbers = new int[] {1, 2, 3, 4, 5};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528\u5faa\u73af\uff1a<\/strong><\/p>\n<pre>int[] numbers = new int[5];\nfor (int i = 0; i &lt; numbers.length; i++) {\n    numbers[i] = i + 1;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u4f7f\u7528 Java 8+ \u7684 Arrays.fill() \u65b9\u6cd5\uff1a<\/strong><\/p>\n<pre>int[] numbers = new int[5];\nArrays.fill(numbers, 0, numbers.length, 1); \/\/ \u5c06\u6570\u7ec4\u7684\u5143\u7d20\u4ece\u7d22\u5f15 0 \u5f00\u59cb\u5168\u90e8\u586b\u5145\u4e3a 1<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>5. \u4f7f\u7528 System.arraycopy() \u65b9\u6cd5\uff1a<\/strong><\/p>\n<pre>int[] source = {1, 2, 3, 4, 5};\nint[] destination = new int[source.length];\nSystem.arraycopy(source, 0, destination, 0, source.length);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u4e9b\u662f\u4e3a Java \u6570\u7ec4\u8d4b\u4e88\u521d\u59cb\u6570\u636e\u7684\u51e0\u79cd\u5e38\u89c1\u65b9\u6cd5\u3002\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u6570\u7ec4\u7684\u89c4\u6a21\u3001\u521d\u59cb\u6570\u636e\u7684\u590d\u6742\u5ea6\u4ee5\u53ca\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5982\u679c\u672a\u5bf9 Java \u6570\u7ec4\u8fdb\u884c\u521d\u59cb\u5316\uff0c\u5219\u5176\u5143\u7d20\u5c06\u4e3a\u9ed8\u8ba4\u503c\u3002\u5bf9\u4e8e\u6570\u5b57\u6570\u7ec4\uff0c\u9ed8\u8ba4\u503c\u4e3a 0\uff1b\u5bf9\u4e8e\u5f15\u7528\u7c7b\u578b\u6570\u7ec4\uff0c\u9ed8\u8ba4\u503c\u4e3a null\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u4e2d\u7684\u521d\u59cb\u6570\u636e\u600e\u4e48\u505a\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>\u5982\u4f55\u4e3a java \u6570\u7ec4\u8d4b\u4e88\u521d\u59cb\u6570\u636e\uff1f\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u5b57\u9762\u91cf\u3001\u6570\u7ec4\u6784\u9020\u51fd\u6570\u3001\u5faa\u73af\u3001arrays.fill() \u65b9\u6cd5\u6216 system.arraycopy() \u65b9\u6cd5\u4e3a java \u6570\u7ec4\u8d4b\u4e88\u521d\u59cb\u6570\u636e\u3002 Java \u6570\u7ec4\u7684\u521d\u59cb\u6570\u636e \u5f53\u521b\u5efa Java \u6570\u7ec4\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u4e3a\u5176\u8d4b\u4e88\u521d\u59cb\u6570\u636e\uff1a 1. \u4f7f\u7528\u6570\u7ec4\u5b57\u9762\u91cf\uff1a int[] numbers = {1, 2, 3, 4, 5}; \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528\u6570\u7ec4\u6784\u9020\u51fd\u6570\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = new int[] {1, 2, 3, 4, 5}; \u767b\u5f55\u540e\u590d\u5236 3. \u4f7f\u7528\u5faa\u73af\uff1a int[] numbers = new int[5]; for (int i = 0; i &lt; numbers.length; i++) { [&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-34966","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34966","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=34966"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34966\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=34966"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=34966"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=34966"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}