{"id":66084,"date":"2025-05-03T16:15:23","date_gmt":"2025-05-03T08:15:23","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66084\/"},"modified":"2025-05-03T16:15:23","modified_gmt":"2025-05-03T08:15:23","slug":"java%e6%80%8e%e4%b9%88%e5%b0%86%e6%95%b0%e7%bb%84%e6%9b%bf%e6%8d%a2%e6%88%90%e9%9b%86%e5%90%88-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66084\/","title":{"rendered":"java\u600e\u4e48\u5c06\u6570\u7ec4\u66ff\u6362\u6210\u96c6\u5408"},"content":{"rendered":"<blockquote><p>\n  \u901a\u8fc7\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff0c\u53ef\u4ee5\u5728 java \u4e2d\u5c06\u6570\u7ec4\u66ff\u6362\u4e3a\u96c6\u5408\uff1a\u521b\u5efa\u4e00\u4e2a\u5408\u9002\u7c7b\u578b\u7684\u96c6\u5408\u3002\u4f7f\u7528\u5faa\u73af\u5c06\u6570\u7ec4\u5143\u7d20\u6dfb\u52a0\u5230\u96c6\u5408\u4e2d\u3002\u5c06\u96c6\u5408\u5206\u914d\u7ed9\u6570\u7ec4\u539f\u6765\u7684\u53d8\u91cf\u540d\uff0c\u4f7f\u6570\u7ec4\u5f15\u7528\u65b0\u7684\u96c6\u5408\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/14\/2024111413483294848.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u5c06\u6570\u7ec4\u66ff\u6362\u6210\u96c6\u5408\u63d2\u56fe\" alt=\"java\u600e\u4e48\u5c06\u6570\u7ec4\u66ff\u6362\u6210\u96c6\u5408\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528 Java \u5c06\u6570\u7ec4\u66ff\u6362\u4e3a\u96c6\u5408<\/strong><\/p>\n<p>\u8981\u5c06 Java \u4e2d\u7684\u6570\u7ec4\u66ff\u6362\u4e3a\u96c6\u5408\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n<p><strong>1. \u521b\u5efa\u96c6\u5408<\/strong><\/p>\n<ul>\n<li>\u9996\u5148\uff0c\u6839\u636e\u6570\u7ec4\u7684\u5143\u7d20\u7c7b\u578b\uff0c\u521b\u5efa\u4e00\u4e2a\u9002\u5f53\u7684\u96c6\u5408\u3002\u652f\u6301\u7684\u96c6\u5408\u7c7b\u578b\u5305\u62ec List\u3001Set \u548c Map\u3002<\/li>\n<li>\n<p>\u4f8b\u5982\uff0c\u8981\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u5b57\u7b26\u4e32\u5143\u7d20\u7684\u5217\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>List&lt;String&gt; list = new ArrayList&lt;&gt;();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<\/ul>\n<p><strong>2. \u5c06\u6570\u7ec4\u5143\u7d20\u6dfb\u52a0\u5230\u96c6\u5408<\/strong><\/p>\n<ul>\n<li>\u4f7f\u7528\u5faa\u73af\u6216\u5176\u4ed6\u65b9\u6cd5\u5c06\u6570\u7ec4\u5143\u7d20\u6dfb\u52a0\u5230\u96c6\u5408\u4e2d\u3002<\/li>\n<li>\n<p>\u4f8b\u5982\uff0c\u8981\u5c06\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\u6dfb\u52a0\u5230\u5217\u8868\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre>for (String element : array) {\n  list.add(element);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<\/ul>\n<p><strong>3. \u66ff\u6362\u6570\u7ec4<\/strong><\/p>\n<ul>\n<li>\u4e00\u65e6\u96c6\u5408\u521b\u5efa\u5b8c\u6bd5\uff0c\u53ef\u4ee5\u4f7f\u7528\u96c6\u5408\u66ff\u6362\u6570\u7ec4\u3002<\/li>\n<li>\u5c06\u96c6\u5408\u5206\u914d\u7ed9\u6570\u7ec4\u539f\u6765\u7684\u53d8\u91cf\u540d\uff0c\u5b83\u5c06\u4f7f\u6570\u7ec4\u5f15\u7528\u65b0\u7684\u96c6\u5408\u3002<\/li>\n<li>\n<p>\u4f8b\u5982\uff0c\u5c06\u5217\u8868 list \u66ff\u6362\u4e3a\u6570\u7ec4 array\uff1a<\/p>\n<pre>array = list.toArray();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\u4ee3\u7801<\/strong><\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5b8c\u6574\u7684\u793a\u4f8b\u4ee3\u7801\uff0c\u6f14\u793a\u5982\u4f55\u5c06\u6570\u7ec4\u66ff\u6362\u4e3a\u96c6\u5408\uff1a<\/p>\n<pre>int[] array = {1, 2, 3, 4, 5};\n\n\/\/ \u521b\u5efa\u4e00\u4e2a\u5217\u8868\nList&lt;Integer&gt; list = new ArrayList&lt;&gt;();\n\n\/\/ \u5c06\u6570\u7ec4\u5143\u7d20\u6dfb\u52a0\u5230\u5217\u8868\nfor (int element : array) {\n    list.add(element);\n}\n\n\/\/ \u66ff\u6362\u6570\u7ec4\narray = list.toArray();\n\n\/\/ \u6253\u5370\u66ff\u6362\u540e\u7684\u6570\u7ec4\nfor (int element : array) {\n    System.out.println(element);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u7ed3\u679c<\/strong><\/p>\n<p>\u8f93\u51fa\u7ed3\u679c\u5c06\u662f\uff1a<\/p>\n<pre>1\n2\n3\n4\n5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u8868\u660e\u6570\u7ec4 array \u5df2\u88ab\u96c6\u5408 list \u6210\u529f\u66ff\u6362\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5c06\u6570\u7ec4\u66ff\u6362\u6210\u96c6\u5408\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>\u901a\u8fc7\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff0c\u53ef\u4ee5\u5728 java \u4e2d\u5c06\u6570\u7ec4\u66ff\u6362\u4e3a\u96c6\u5408\uff1a\u521b\u5efa\u4e00\u4e2a\u5408\u9002\u7c7b\u578b\u7684\u96c6\u5408\u3002\u4f7f\u7528\u5faa\u73af\u5c06\u6570\u7ec4\u5143\u7d20\u6dfb\u52a0\u5230\u96c6\u5408\u4e2d\u3002\u5c06\u96c6\u5408\u5206\u914d\u7ed9\u6570\u7ec4\u539f\u6765\u7684\u53d8\u91cf\u540d\uff0c\u4f7f\u6570\u7ec4\u5f15\u7528\u65b0\u7684\u96c6\u5408\u3002 \u5982\u4f55\u4f7f\u7528 Java \u5c06\u6570\u7ec4\u66ff\u6362\u4e3a\u96c6\u5408 \u8981\u5c06 Java \u4e2d\u7684\u6570\u7ec4\u66ff\u6362\u4e3a\u96c6\u5408\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a 1. \u521b\u5efa\u96c6\u5408 \u9996\u5148\uff0c\u6839\u636e\u6570\u7ec4\u7684\u5143\u7d20\u7c7b\u578b\uff0c\u521b\u5efa\u4e00\u4e2a\u9002\u5f53\u7684\u96c6\u5408\u3002\u652f\u6301\u7684\u96c6\u5408\u7c7b\u578b\u5305\u62ec List\u3001Set \u548c Map\u3002 \u4f8b\u5982\uff0c\u8981\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u5b57\u7b26\u4e32\u5143\u7d20\u7684\u5217\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b List&lt;String&gt; list = new ArrayList&lt;&gt;(); \u767b\u5f55\u540e\u590d\u5236 2. \u5c06\u6570\u7ec4\u5143\u7d20\u6dfb\u52a0\u5230\u96c6\u5408 \u4f7f\u7528\u5faa\u73af\u6216\u5176\u4ed6\u65b9\u6cd5\u5c06\u6570\u7ec4\u5143\u7d20\u6dfb\u52a0\u5230\u96c6\u5408\u4e2d\u3002 \u4f8b\u5982\uff0c\u8981\u5c06\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\u6dfb\u52a0\u5230\u5217\u8868\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a for (String element : array) { list.add(element); } \u767b\u5f55\u540e\u590d\u5236 3. \u66ff\u6362\u6570\u7ec4 \u4e00\u65e6\u96c6\u5408\u521b\u5efa\u5b8c\u6bd5\uff0c\u53ef\u4ee5\u4f7f\u7528\u96c6\u5408\u66ff\u6362\u6570\u7ec4\u3002 \u5c06\u96c6\u5408\u5206\u914d\u7ed9\u6570\u7ec4\u539f\u6765\u7684\u53d8\u91cf\u540d\uff0c\u5b83\u5c06\u4f7f\u6570\u7ec4\u5f15\u7528\u65b0\u7684\u96c6\u5408\u3002 \u4f8b\u5982\uff0c\u5c06\u5217\u8868 list \u66ff\u6362\u4e3a\u6570\u7ec4 array\uff1a array = list.toArray(); \u767b\u5f55\u540e\u590d\u5236 \u793a\u4f8b\u4ee3\u7801 \u4ee5\u4e0b\u662f\u4e00\u4e2a\u5b8c\u6574\u7684\u793a\u4f8b\u4ee3\u7801\uff0c\u6f14\u793a\u5982\u4f55\u5c06\u6570\u7ec4\u66ff\u6362\u4e3a\u96c6\u5408\uff1a int[] array = {1, 2, [&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-66084","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66084","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=66084"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66084\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66084"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66084"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66084"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}