{"id":65799,"date":"2025-05-03T14:18:18","date_gmt":"2025-05-03T06:18:18","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65799\/"},"modified":"2025-05-03T14:18:18","modified_gmt":"2025-05-03T06:18:18","slug":"java-%e6%80%8e%e4%b9%88%e5%90%91%e6%95%b0%e7%bb%84%e9%87%8c%e8%b5%8b%e5%80%bc-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65799\/","title":{"rendered":"java \u600e\u4e48\u5411\u6570\u7ec4\u91cc\u8d4b\u503c"},"content":{"rendered":"<blockquote><p>\n  java \u4e2d\u5411\u6570\u7ec4\u8d4b\u503c\u7684\u65b9\u6cd5\u5305\u62ec\uff1a1. \u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff1b2. \u4f7f\u7528 for \u5faa\u73af\uff1b3. \u4f7f\u7528 arrays.fill() \u65b9\u6cd5\uff1b4. \u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\uff1b5. \u4f7f\u7528 apache commons lang3 \u4e2d\u7684 arrayutils.add() \u65b9\u6cd5\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111310391912556.jpg\" class=\"aligncenter\" title=\"java \u600e\u4e48\u5411\u6570\u7ec4\u91cc\u8d4b\u503c\u63d2\u56fe\" alt=\"java \u600e\u4e48\u5411\u6570\u7ec4\u91cc\u8d4b\u503c\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u5411\u6570\u7ec4\u8d4b\u503c<\/strong><\/p>\n<p><strong>\u65b9\u6cd5\uff1a<\/strong><\/p>\n<p>\u6709\u51e0\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5728 Java \u4e2d\u5411\u6570\u7ec4\u8d4b\u503c\u3002<\/p>\n<p><strong>1. \u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6b64\u65b9\u6cd5\u5728\u58f0\u660e\u6570\u7ec4\u65f6\u76f4\u63a5\u4e3a\u5176\u8d4b\u503c\u3002<\/p>\n<p><strong>2. \u4f7f\u7528 for \u5faa\u73af\uff1a<\/strong><\/p>\n<pre>int[] numbers = new int[5];\n\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>\u6b64\u65b9\u6cd5\u4f7f\u7528\u5faa\u73af\u9010\u4e2a\u5143\u7d20\u5730\u5411\u6570\u7ec4\u8d4b\u503c\u3002<\/p>\n<p><strong>3. \u4f7f\u7528 Arrays.fill() \u65b9\u6cd5\uff1a<\/strong><\/p>\n<pre>int[] numbers = new int[5];\nArrays.fill(numbers, 5);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6b64\u65b9\u6cd5\u7528\u6307\u5b9a\u7684\u503c\u586b\u5145\u6574\u4e2a\u6570\u7ec4\u3002<\/p>\n<p><strong>4. \u4f7f\u7528 System.arraycopy() \u65b9\u6cd5\uff1a<\/strong><\/p>\n<pre>int[] numbers1 = {1, 2, 3, 4, 5};\nint[] numbers2 = new int[5];\n\nSystem.arraycopy(numbers1, 0, numbers2, 0, 5);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6b64\u65b9\u6cd5\u5c06\u4e00\u4e2a\u6570\u7ec4\u7684\u5143\u7d20\u590d\u5236\u5230\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\u3002<\/p>\n<p><strong>5. \u4f7f\u7528 Apache Commons Lang3 \u4e2d\u7684 ArrayUtils.add() \u65b9\u6cd5\uff1a<\/strong><\/p>\n<pre>import org.apache.commons.lang3.ArrayUtils;\n\nint[] numbers = {1, 2, 3, 4};\nint[] newNumbers = ArrayUtils.add(numbers, 5);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6b64\u65b9\u6cd5\u5c06\u4e00\u4e2a\u5143\u7d20\u6dfb\u52a0\u5230\u73b0\u6709\u6570\u7ec4\u7684\u672b\u5c3e\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava \u600e\u4e48\u5411\u6570\u7ec4\u91cc\u8d4b\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>java \u4e2d\u5411\u6570\u7ec4\u8d4b\u503c\u7684\u65b9\u6cd5\u5305\u62ec\uff1a1. \u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff1b2. \u4f7f\u7528 for \u5faa\u73af\uff1b3. \u4f7f\u7528 arrays.fill() \u65b9\u6cd5\uff1b4. \u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\uff1b5. \u4f7f\u7528 apache commons lang3 \u4e2d\u7684 arrayutils.add() \u65b9\u6cd5\u3002 \u5982\u4f55\u5728 Java \u4e2d\u5411\u6570\u7ec4\u8d4b\u503c \u65b9\u6cd5\uff1a \u6709\u51e0\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5728 Java \u4e2d\u5411\u6570\u7ec4\u8d4b\u503c\u3002 1. \u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = {1, 2, 3, 4, 5}; \u767b\u5f55\u540e\u590d\u5236 \u6b64\u65b9\u6cd5\u5728\u58f0\u660e\u6570\u7ec4\u65f6\u76f4\u63a5\u4e3a\u5176\u8d4b\u503c\u3002 2. \u4f7f\u7528 for \u5faa\u73af\uff1a int[] numbers = new int[5]; for (int i = 0; i &lt; [&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-65799","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65799","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=65799"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65799\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65799"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65799"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65799"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}