{"id":35378,"date":"2024-11-26T10:22:46","date_gmt":"2024-11-26T02:22:46","guid":{"rendered":"https:\/\/fwq.ai\/blog\/35378\/"},"modified":"2024-11-26T10:22:46","modified_gmt":"2024-11-26T02:22:46","slug":"java%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e6%b7%bb%e5%8a%a0%e5%85%83%e7%b4%a0","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/35378\/","title":{"rendered":"JAVA\u5b57\u7b26\u4e32\u6570\u7ec4\u600e\u4e48\u6dfb\u52a0\u5143\u7d20"},"content":{"rendered":"<blockquote><p>\n  java \u5b57\u7b26\u4e32\u6570\u7ec4\u662f\u56fa\u5b9a\u957f\u5ea6\u7684\u6570\u636e\u7ed3\u6784\uff0c\u53ea\u80fd\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u6dfb\u52a0\u5143\u7d20\uff1a\u4f7f\u7528 for \u5faa\u73af\u624b\u52a8\u4e3a\u6bcf\u4e2a\u5143\u7d20\u8d4b\u503c\u3002\u4f7f\u7528 arrays.fill() \u65b9\u6cd5\u7528\u7ed9\u5b9a\u503c\u586b\u5145\u6570\u7ec4\u7684\u6307\u5b9a\u8303\u56f4\u3002\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\u5c06\u53e6\u4e00\u4e2a\u6570\u7ec4\u6216\u5176\u4e00\u90e8\u5206\u590d\u5236\u5230\u8be5\u6570\u7ec4\u4e2d\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/04\/2024110401545136246.jpg\" class=\"aligncenter\" title=\"JAVA\u5b57\u7b26\u4e32\u6570\u7ec4\u600e\u4e48\u6dfb\u52a0\u5143\u7d20\u63d2\u56fe\" alt=\"JAVA\u5b57\u7b26\u4e32\u6570\u7ec4\u600e\u4e48\u6dfb\u52a0\u5143\u7d20\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5411 Java \u6dfb\u52a0\u5143\u7d20<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u5b57\u7b26\u4e32\u6570\u7ec4\u662f\u4e00\u79cd \u56fa\u5b9a\u957f\u5ea6 \u7684\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u4e00\u7cfb\u5217\u5b57\u7b26\u4e32\u3002\u4e00\u65e6\u521b\u5efa\uff0c\u6570\u7ec4\u7684\u5927\u5c0f\u5c31\u4e0d\u80fd\u6539\u53d8\u3002\u4f46\u662f\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5411\u5b57\u7b26\u4e32\u6570\u7ec4\u4e2d\u6dfb\u52a0\u65b0\u5143\u7d20\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528 for \u5faa\u73af<\/strong><\/p>\n<p>\u901a\u8fc7\u904d\u5386\u6570\u7ec4\u5e76\u4f7f\u7528 array[i] = value \u8bed\u6cd5\u4e3a\u6bcf\u4e2a\u5143\u7d20\u5206\u914d\u503c\uff0c\u53ef\u4ee5\u624b\u52a8\u5411\u5b57\u7b26\u4e32\u6570\u7ec4\u4e2d\u6dfb\u52a0\u5143\u7d20\u3002\u4f8b\u5982\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>String[] arr = new String[5];\n\n\/\/ \u6dfb\u52a0\u5143\u7d20\nfor (int i = 0; i &lt; arr.length; i++) {\n    arr[i] = \"\u5143\u7d20\" + (i + 1);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 Arrays.fill() \u65b9\u6cd5<\/strong><\/p>\n<p>Arrays.fill() \u65b9\u6cd5\u53ef\u7528\u4e8e\u7528\u7ed9\u5b9a\u503c\u586b\u5145\u6570\u7ec4\u7684\u6307\u5b9a\u8303\u56f4\u3002\u53ef\u4ee5\u901a\u8fc7\u5982\u4e0b\u65b9\u5f0f\u4f7f\u7528\u5b83\u5411\u6570\u7ec4\u4e2d\u6dfb\u52a0\u5143\u7d20\uff1a<\/p>\n<pre>String[] arr = new String[5];\n\n\/\/ \u6dfb\u52a0\u5143\u7d20\nArrays.fill(arr, \"\u5143\u7d20\");<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528 System.arraycopy() \u65b9\u6cd5<\/strong><\/p>\n<p>System.arraycopy() \u65b9\u6cd5\u53ef\u7528\u4e8e\u5c06\u6570\u7ec4\u6216\u6570\u7ec4\u7684\u4e00\u90e8\u5206\u590d\u5236\u5230\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\u3002\u53ef\u4ee5\u901a\u8fc7\u5982\u4e0b\u65b9\u5f0f\u4f7f\u7528\u5b83\u5411\u6570\u7ec4\u4e2d\u6dfb\u52a0\u5143\u7d20\uff1a<\/p>\n<pre>String[] arr1 = new String[5];\nString[] arr2 = new String[2];\n\n\/\/ \u4e3a arr1 \u6dfb\u52a0\u5143\u7d20\narr1[0] = \"\u5143\u7d201\";\narr1[1] = \"\u5143\u7d202\";\n\n\/\/ \u5c06 arr1 \u7684\u5143\u7d20\u590d\u5236\u5230 arr2 \u4e2d\nSystem.arraycopy(arr1, 0, arr2, 0, 2);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>\u4e00\u65e6\u521b\u5efa\u4e86\u5b57\u7b26\u4e32\u6570\u7ec4\uff0c\u5176\u5927\u5c0f\u5c31\u4e0d\u80fd\u66f4\u6539\u3002<\/li>\n<li>\u6dfb\u52a0\u5143\u7d20\u65f6\uff0c\u8bf7\u786e\u4fdd\u6570\u7ec4\u8fd8\u6709\u53ef\u7528\u7684\u7a7a\u95f4\u3002<\/li>\n<li>\u6dfb\u52a0\u5143\u7d20\u540e\uff0c\u6570\u7ec4\u7684\u957f\u5ea6\u4fdd\u6301\u4e0d\u53d8\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fJAVA\u600e\u4e48\u6dfb\u52a0\u5143\u7d20\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>java \u5b57\u7b26\u4e32\u6570\u7ec4\u662f\u56fa\u5b9a\u957f\u5ea6\u7684\u6570\u636e\u7ed3\u6784\uff0c\u53ea\u80fd\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u6dfb\u52a0\u5143\u7d20\uff1a\u4f7f\u7528 for \u5faa\u73af\u624b\u52a8\u4e3a\u6bcf\u4e2a\u5143\u7d20\u8d4b\u503c\u3002\u4f7f\u7528 arrays.fill() \u65b9\u6cd5\u7528\u7ed9\u5b9a\u503c\u586b\u5145\u6570\u7ec4\u7684\u6307\u5b9a\u8303\u56f4\u3002\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\u5c06\u53e6\u4e00\u4e2a\u6570\u7ec4\u6216\u5176\u4e00\u90e8\u5206\u590d\u5236\u5230\u8be5\u6570\u7ec4\u4e2d\u3002 \u5982\u4f55\u5411 Java \u6dfb\u52a0\u5143\u7d20 \u5728 Java \u4e2d\uff0c\u5b57\u7b26\u4e32\u6570\u7ec4\u662f\u4e00\u79cd \u56fa\u5b9a\u957f\u5ea6 \u7684\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u4e00\u7cfb\u5217\u5b57\u7b26\u4e32\u3002\u4e00\u65e6\u521b\u5efa\uff0c\u6570\u7ec4\u7684\u5927\u5c0f\u5c31\u4e0d\u80fd\u6539\u53d8\u3002\u4f46\u662f\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5411\u5b57\u7b26\u4e32\u6570\u7ec4\u4e2d\u6dfb\u52a0\u65b0\u5143\u7d20\uff1a 1. \u4f7f\u7528 for \u5faa\u73af \u901a\u8fc7\u904d\u5386\u6570\u7ec4\u5e76\u4f7f\u7528 array[i] = value \u8bed\u6cd5\u4e3a\u6bcf\u4e2a\u5143\u7d20\u5206\u914d\u503c\uff0c\u53ef\u4ee5\u624b\u52a8\u5411\u5b57\u7b26\u4e32\u6570\u7ec4\u4e2d\u6dfb\u52a0\u5143\u7d20\u3002\u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b String[] arr = new String[5]; \/\/ \u6dfb\u52a0\u5143\u7d20 for (int i = 0; i &lt; arr.length; i++) { arr[i] = &#8220;\u5143\u7d20&#8221; + (i + 1); } \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 Arrays.fill() [&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-35378","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35378","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=35378"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35378\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=35378"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=35378"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=35378"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}