{"id":65748,"date":"2025-05-03T11:55:01","date_gmt":"2025-05-03T03:55:01","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65748\/"},"modified":"2025-05-03T11:55:01","modified_gmt":"2025-05-03T03:55:01","slug":"java%e6%80%8e%e4%b9%88%e7%bb%99char%e6%95%b0%e7%bb%84%e8%b5%8b%e5%80%bc-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65748\/","title":{"rendered":"java\u600e\u4e48\u7ed9char\u6570\u7ec4\u8d4b\u503c"},"content":{"rendered":"<blockquote><p>\n  java char \u6570\u7ec4\u8d4b\u503c\u6709 5 \u79cd\u65b9\u6cd5\uff1a1. \u76f4\u63a5\u8d4b\u503c\uff1b2. \u4f7f\u7528 string\uff1b3. \u9010\u4e2a\u8d4b\u503c\uff1b4. \u4f7f\u7528 arrays.fill\uff1b5. \u4f7f\u7528 system.arraycopy\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111309065747443.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u7ed9char\u6570\u7ec4\u8d4b\u503c\u63d2\u56fe\" alt=\"java\u600e\u4e48\u7ed9char\u6570\u7ec4\u8d4b\u503c\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u7ed9 Java char \u6570\u7ec4\u8d4b\u503c<\/strong><\/p>\n<p>\u7ed9 Java char \u6570\u7ec4\u8d4b\u503c\u6709\u591a\u79cd\u65b9\u6cd5\uff1a<\/p>\n<p><strong>1. \u76f4\u63a5\u8d4b\u503c<\/strong><\/p>\n<p>\u8fd9\u662f\u6700\u76f4\u63a5\u7684\u65b9\u6cd5\uff0c\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>char[] characters = {'a', 'b', 'c', 'd', 'e'};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 String<\/strong><\/p>\n<p>\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528 String \u5bf9\u8c61\u6784\u9020\u4e00\u4e2a char \u6570\u7ec4\uff1a<\/p>\n<pre>String string = \"abcde\";\nchar[] characters = string.toCharArray();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u9010\u4e2a\u8d4b\u503c<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 for \u5faa\u73af\u9010\u4e2a\u7ed9\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u8d4b\u503c\uff1a<\/p>\n<pre>char[] characters = new char[5];\nfor (int i = 0; i &lt; characters.length; i++) {\n    characters[i] = (char) ('a' + i);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u4f7f\u7528 Arrays.fill<\/strong><\/p>\n<p>Arrays.fill \u65b9\u6cd5\u53ef\u4ee5\u5c06\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\u8d4b\u503c\u4e3a\u6307\u5b9a\u503c\uff1a<\/p>\n<pre>char[] characters = new char[5];\nArrays.fill(characters, 'a');<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>5. \u4f7f\u7528 System.arraycopy<\/strong><\/p>\n<p>System.arraycopy \u65b9\u6cd5\u53ef\u4ee5\u4ece\u4e00\u4e2a\u6570\u7ec4\u590d\u5236\u5143\u7d20\u5230\u53e6\u4e00\u4e2a\u6570\u7ec4\uff1a<\/p>\n<pre>char[] source = {'a', 'b', 'c', 'd', 'e'};\nchar[] destination = new char[5];\nSystem.arraycopy(source, 0, destination, 0, 5);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u7ed9char\u6570\u7ec4\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 char \u6570\u7ec4\u8d4b\u503c\u6709 5 \u79cd\u65b9\u6cd5\uff1a1. \u76f4\u63a5\u8d4b\u503c\uff1b2. \u4f7f\u7528 string\uff1b3. \u9010\u4e2a\u8d4b\u503c\uff1b4. \u4f7f\u7528 arrays.fill\uff1b5. \u4f7f\u7528 system.arraycopy\u3002 \u5982\u4f55\u7ed9 Java char \u6570\u7ec4\u8d4b\u503c \u7ed9 Java char \u6570\u7ec4\u8d4b\u503c\u6709\u591a\u79cd\u65b9\u6cd5\uff1a 1. \u76f4\u63a5\u8d4b\u503c \u8fd9\u662f\u6700\u76f4\u63a5\u7684\u65b9\u6cd5\uff0c\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b char[] characters = {&#8216;a&#8217;, &#8216;b&#8217;, &#8216;c&#8217;, &#8216;d&#8217;, &#8216;e&#8217;}; \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 String \u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528 String \u5bf9\u8c61\u6784\u9020\u4e00\u4e2a char \u6570\u7ec4\uff1a String string = &#8220;abcde&#8221;; char[] characters = string.toCharArray(); \u767b\u5f55\u540e\u590d\u5236 3. \u9010\u4e2a\u8d4b\u503c \u53ef\u4ee5\u4f7f\u7528 for [&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-65748","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65748","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=65748"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65748\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65748"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65748"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}