{"id":66852,"date":"2025-05-03T14:58:03","date_gmt":"2025-05-03T06:58:03","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66852\/"},"modified":"2025-05-03T14:58:03","modified_gmt":"2025-05-03T06:58:03","slug":"java%e9%87%8c%e6%80%8e%e4%b9%88%e5%be%80%e6%95%b0%e7%bb%84%e9%87%8c%e6%b7%bb%e5%8a%a0%e6%95%b0%e6%8d%ae-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66852\/","title":{"rendered":"java\u91cc\u600e\u4e48\u5f80\u6570\u7ec4\u91cc\u6dfb\u52a0\u6570\u636e"},"content":{"rendered":"<blockquote><p>\n  \u5411 java \u6570\u7ec4\u6dfb\u52a0\u6570\u636e\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u5b8c\u6210\uff1a\u58f0\u660e\u6570\u7ec4\u5e76\u6307\u5b9a\u7c7b\u578b\u548c\u5927\u5c0f\u3002\u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26\u8bbf\u95ee\u5e76\u8bbe\u7f6e\u5143\u7d20\u3002\u4f7f\u7528\u5faa\u73af\u904d\u5386\u6570\u7ec4\u6240\u6709\u5143\u7d20\u3002\u5982\u9700\u8c03\u6574\u5927\u5c0f\uff0c\u4f7f\u7528 arrays.copyof() \u521b\u5efa\u65b0\u6570\u7ec4\u5e76\u590d\u5236\u5143\u7d20\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/17\/2024111712332074839.jpg\" class=\"aligncenter\" title=\"java\u91cc\u600e\u4e48\u5f80\u6570\u7ec4\u91cc\u6dfb\u52a0\u6570\u636e\u63d2\u56fe\" alt=\"java\u91cc\u600e\u4e48\u5f80\u6570\u7ec4\u91cc\u6dfb\u52a0\u6570\u636e\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u5411\u6570\u7ec4\u6dfb\u52a0\u6570\u636e<\/strong><\/p>\n<p>Java \u4e2d\u6709\u4e00\u79cd\u79f0\u4e3a\u6570\u7ec4\u7684\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u540c\u7c7b\u578b\u503c\u7684\u96c6\u5408\u3002\u5411\u6570\u7ec4\u4e2d\u6dfb\u52a0\u6570\u636e\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u5b8c\u6210\uff1a<\/p>\n<p><strong>1. \u58f0\u660e\u6570\u7ec4<\/strong><\/p>\n<p>\u9996\u5148\uff0c\u9700\u8981\u58f0\u660e\u4e00\u4e2a\u6570\u7ec4\u53d8\u91cf\u5e76\u6307\u5b9a\u5176\u6570\u636e\u7c7b\u578b\u548c\u5927\u5c0f\u3002\u4f8b\u5982\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] numbers = new int[5];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u5c06\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a numbers \u7684\u6574\u578b\u6570\u7ec4\uff0c\u5b83\u53ef\u4ee5\u5bb9\u7eb3 5 \u4e2a\u6574\u6570\u3002<\/p>\n<p><strong>2. \u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26\u8bbf\u95ee\u5143\u7d20<\/strong><\/p>\n<p>\u6bcf\u4e2a\u6570\u7ec4\u5143\u7d20\u90fd\u6709\u4e00\u4e2a\u5173\u8054\u7684\u4e0b\u6807\uff0c\u4ece 0 \u5230\u6570\u7ec4\u5927\u5c0f\u51cf 1\u3002\u8981\u8bbf\u95ee\u7279\u5b9a\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26 []\uff1a<\/p>\n<pre>numbers[0] = 10;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u4f1a\u5c06\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\uff08\u4e0b\u6807\u4e3a 0\uff09\u8bbe\u7f6e\u4e3a 10\u3002<\/p>\n<p><strong>3. \u904d\u5386\u6570\u7ec4<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 for \u5faa\u73af\u6216\u589e\u5f3a\u578b for \u5faa\u73af\u904d\u5386\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>\/\/ \u4f7f\u7528 for \u5faa\u73af\nfor (int i = 0; i &lt; numbers.length; i++) {\n    System.out.println(numbers[i]);\n}\n\n\/\/ \u4f7f\u7528\u589e\u5f3a\u578b for \u5faa\u73af\nfor (int number : numbers) {\n    System.out.println(number);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u8c03\u6574\u6570\u7ec4\u5927\u5c0f<\/strong><\/p>\n<p>\u5982\u679c\u9700\u8981\u66f4\u6539\u6570\u7ec4\u7684\u5927\u5c0f\uff0c\u53ef\u4ee5\u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5\u521b\u5efa\u65b0\u6570\u7ec4\u5e76\u5c06\u73b0\u6709\u6570\u7ec4\u7684\u5143\u7d20\u590d\u5236\u5230\u5176\u4e2d\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>int[] newNumbers = Arrays.copyOf(numbers, 10);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u5c06\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4 newNumbers\uff0c\u5b83\u53ef\u4ee5\u5bb9\u7eb3 10 \u4e2a\u6574\u6570\uff0c\u5e76\u5c06 numbers \u6570\u7ec4\u7684\u5143\u7d20\u590d\u5236\u5230\u5176\u4e2d\u3002<\/p>\n<p>\u8bf7\u6ce8\u610f\uff0c\u4e00\u65e6\u58f0\u660e\u4e86\u6570\u7ec4\uff0c\u5c31\u65e0\u6cd5\u66f4\u6539\u5176\u5927\u5c0f\u3002\u4f46\u662f\uff0c\u53ef\u4ee5\u901a\u8fc7\u521b\u5efa\u65b0\u6570\u7ec4\u5e76\u5c06\u5176\u590d\u5236\u5230\u5176\u4e2d\u6765\u6709\u6548\u5730\u8c03\u6574\u6570\u7ec4\u5927\u5c0f\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u91cc\u600e\u4e48\u5f80\u6570\u7ec4\u91cc\u6dfb\u52a0\u6570\u636e\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>\u5411 java \u6570\u7ec4\u6dfb\u52a0\u6570\u636e\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u5b8c\u6210\uff1a\u58f0\u660e\u6570\u7ec4\u5e76\u6307\u5b9a\u7c7b\u578b\u548c\u5927\u5c0f\u3002\u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26\u8bbf\u95ee\u5e76\u8bbe\u7f6e\u5143\u7d20\u3002\u4f7f\u7528\u5faa\u73af\u904d\u5386\u6570\u7ec4\u6240\u6709\u5143\u7d20\u3002\u5982\u9700\u8c03\u6574\u5927\u5c0f\uff0c\u4f7f\u7528 arrays.copyof() \u521b\u5efa\u65b0\u6570\u7ec4\u5e76\u590d\u5236\u5143\u7d20\u3002 \u5982\u4f55\u5728 Java \u4e2d\u5411\u6570\u7ec4\u6dfb\u52a0\u6570\u636e Java \u4e2d\u6709\u4e00\u79cd\u79f0\u4e3a\u6570\u7ec4\u7684\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u540c\u7c7b\u578b\u503c\u7684\u96c6\u5408\u3002\u5411\u6570\u7ec4\u4e2d\u6dfb\u52a0\u6570\u636e\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u5b8c\u6210\uff1a 1. \u58f0\u660e\u6570\u7ec4 \u9996\u5148\uff0c\u9700\u8981\u58f0\u660e\u4e00\u4e2a\u6570\u7ec4\u53d8\u91cf\u5e76\u6307\u5b9a\u5176\u6570\u636e\u7c7b\u578b\u548c\u5927\u5c0f\u3002\u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = new int[5]; \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u5c06\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a numbers \u7684\u6574\u578b\u6570\u7ec4\uff0c\u5b83\u53ef\u4ee5\u5bb9\u7eb3 5 \u4e2a\u6574\u6570\u3002 2. \u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26\u8bbf\u95ee\u5143\u7d20 \u6bcf\u4e2a\u6570\u7ec4\u5143\u7d20\u90fd\u6709\u4e00\u4e2a\u5173\u8054\u7684\u4e0b\u6807\uff0c\u4ece 0 \u5230\u6570\u7ec4\u5927\u5c0f\u51cf 1\u3002\u8981\u8bbf\u95ee\u7279\u5b9a\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26 []\uff1a numbers[0] = 10; \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u4f1a\u5c06\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\uff08\u4e0b\u6807\u4e3a 0\uff09\u8bbe\u7f6e\u4e3a 10\u3002 3. \u904d\u5386\u6570\u7ec4 \u53ef\u4ee5\u4f7f\u7528 for \u5faa\u73af\u6216\u589e\u5f3a\u578b for \u5faa\u73af\u904d\u5386\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u3002\u4f8b\u5982\uff1a \/\/ \u4f7f\u7528 for \u5faa\u73af for (int i = 0; [&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-66852","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66852","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=66852"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66852\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66852"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66852"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}