{"id":38158,"date":"2024-11-26T08:57:27","date_gmt":"2024-11-26T00:57:27","guid":{"rendered":"https:\/\/fwq.ai\/blog\/38158\/"},"modified":"2024-11-26T08:57:27","modified_gmt":"2024-11-26T00:57:27","slug":"java%e9%87%8c%e6%80%8e%e4%b9%88%e6%8a%8a%e6%95%b0%e7%bb%84%e8%bd%ac%e6%88%90%e9%9b%86%e5%90%88","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/38158\/","title":{"rendered":"java\u91cc\u600e\u4e48\u628a\u6570\u7ec4\u8f6c\u6210\u96c6\u5408"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\uff0c\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u96c6\u5408\u7684\u65b9\u6cd5\u6709\uff1a\u4f7f\u7528 arrays.aslist() \u8f6c\u6362\u4e3a\u4e0d\u53ef\u53d8\u5217\u8868\uff0c\u9002\u7528\u4e8e\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\u3002\u4f7f\u7528 arraylist(arrays.aslist()) \u8f6c\u6362\u4e3a\u53ef\u53d8\u5217\u8868\uff0c\u5141\u8bb8\u6dfb\u52a0\u548c\u5220\u9664\u5143\u7d20\uff0c\u6027\u80fd\u66f4\u4f73\u3002\u4f7f\u7528 stream.of() \u548c collectors.tolist() \u521b\u5efa\u53ef\u53d8\u5217\u8868\uff0c\u901a\u7528\u6027\u66f4\u5f3a\uff0c\u53ef\u5904\u7406\u57fa\u672c\u7c7b\u578b\u548c\u5f15\u7528\u7c7b\u578b\u6570\u7ec4\u3002\u4f7f\u7528 for \u5faa\u73af\u9010\u4e2a\u6dfb\u52a0\u5143\u7d20\u5230\u5217\u8868\uff0c\u9002\u7528\u4e8e\u6240\u6709\u7c7b\u578b\u7684\u6570\u7ec4\uff0c\u4f46\u6548\u7387\u8f83\u4f4e\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/14\/2024111409460164461.jpg\" class=\"aligncenter\" title=\"java\u91cc\u600e\u4e48\u628a\u6570\u7ec4\u8f6c\u6210\u96c6\u5408\u63d2\u56fe\" alt=\"java\u91cc\u600e\u4e48\u628a\u6570\u7ec4\u8f6c\u6210\u96c6\u5408\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u96c6\u5408<\/strong><\/p>\n<p><strong>\u7b80\u4ecb\uff1a<\/strong><br \/>\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u96c6\u5408\u3002\u96c6\u5408\u6bd4\u6570\u7ec4\u6709\u66f4\u591a\u7684\u4f18\u70b9\uff0c\u5305\u62ec\u52a8\u6001\u6570\u636e\u7ed3\u6784\u3001\u7b80\u5316\u7684\u5143\u7d20\u6dfb\u52a0\u548c\u5220\u9664\u4ee5\u53ca\u5f3a\u5927\u7684\u8fc7\u6ee4\u548c\u6620\u5c04\u529f\u80fd\u3002<\/p>\n<p><strong>\u65b9\u6cd5\uff1a<\/strong><\/p>\n<p><strong>1. \u4f7f\u7528 Arrays.asList()\uff1a<\/strong><br \/>\u8fd9\u662f\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u4e0d\u53ef\u53d8\u5217\u8868\u7684\u6700\u7b80\u5355\u65b9\u6cd5\u3002\u4f46\u662f\uff0c\u5b83\u53ea\u9002\u7528\u4e8e\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\uff0c\u5e76\u4e14\u4e0d\u5141\u8bb8\u6dfb\u52a0\u6216\u5220\u9664\u5143\u7d20\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] arr = {1, 2, 3};\nList&lt;Integer&gt; list = Arrays.asList(arr);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 ArrayList(Arrays.asList())\uff1a<\/strong><br \/>\u6b64\u65b9\u6cd5\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u53ef\u53d8\u5217\u8868\u3002\u5b83\u5141\u8bb8\u6dfb\u52a0\u548c\u5220\u9664\u5143\u7d20\uff0c\u800c\u4e14\u6bd4 Arrays.asList() \u66f4\u9ad8\u6548\u3002<\/p>\n<pre>int[] arr = {1, 2, 3};\nList&lt;Integer&gt; list = new ArrayList&lt;&gt;(Arrays.asList(arr));<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528 Stream.of() \u548c Collectors.toList()\uff1a<\/strong><br \/>\u6b64\u65b9\u6cd5\u4f7f\u7528 Java 8 Stream API \u6765\u521b\u5efa\u53ef\u53d8\u5217\u8868\u3002\u5b83\u6bd4\u524d\u9762\u7684\u65b9\u6cd5\u66f4\u901a\u7528\uff0c\u53ef\u4ee5\u5904\u7406\u57fa\u672c\u7c7b\u578b\u548c\u5f15\u7528\u7c7b\u578b\u6570\u7ec4\u3002<\/p>\n<pre>int[] arr = {1, 2, 3};\nList&lt;Integer&gt; list = Stream.of(arr).collect(Collectors.toList());<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u4f7f\u7528 for \u5faa\u73af\uff1a<\/strong><br \/>\u6b64\u65b9\u6cd5\u4f7f\u7528 for \u5faa\u73af\u5c06\u6570\u7ec4\u5143\u7d20\u9010\u4e2a\u6dfb\u52a0\u5230\u5217\u8868\u4e2d\u3002\u5b83\u9002\u7528\u4e8e\u6240\u6709\u7c7b\u578b\u7684\u6570\u7ec4\uff0c\u4f46\u6548\u7387\u8f83\u4f4e\u3002<\/p>\n<pre>int[] arr = {1, 2, 3};\nList&lt;Integer&gt; list = new ArrayList&lt;&gt;();\nfor (int num : arr) {\n    list.add(num);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u9009\u62e9\u5efa\u8bae\uff1a<\/strong><\/p>\n<p>\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u6570\u7ec4\u7c7b\u578b\u3001\u6027\u80fd\u8981\u6c42\u548c\u6240\u9700\u7684\u529f\u80fd\u3002\u5bf9\u4e8e\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\u7684\u7b80\u5355\u8f6c\u6362\uff0c\u53ef\u4ee5\u4f7f\u7528 Arrays.asList()\u3002\u5bf9\u4e8e\u53ef\u53d8\u5217\u8868\u548c\u66f4\u9ad8\u7684\u6548\u7387\uff0c\u4f7f\u7528 ArrayList(Arrays.asList()) \u6216 Stream.of() \u548c Collectors.toList()\u3002\u5bf9\u4e8e\u5904\u7406\u5f15\u7528\u7c7b\u578b\u6570\u7ec4\u6216\u9700\u8981\u66f4\u591a\u81ea\u5b9a\u4e49\uff0c\u8bf7\u4f7f\u7528 for \u5faa\u73af\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u91cc\u600e\u4e48\u628a\u6570\u7ec4\u8f6c\u6210\u96c6\u5408\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>\u5728 java \u4e2d\uff0c\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u96c6\u5408\u7684\u65b9\u6cd5\u6709\uff1a\u4f7f\u7528 arrays.aslist() \u8f6c\u6362\u4e3a\u4e0d\u53ef\u53d8\u5217\u8868\uff0c\u9002\u7528\u4e8e\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\u3002\u4f7f\u7528 arraylist(arrays.aslist()) \u8f6c\u6362\u4e3a\u53ef\u53d8\u5217\u8868\uff0c\u5141\u8bb8\u6dfb\u52a0\u548c\u5220\u9664\u5143\u7d20\uff0c\u6027\u80fd\u66f4\u4f73\u3002\u4f7f\u7528 stream.of() \u548c collectors.tolist() \u521b\u5efa\u53ef\u53d8\u5217\u8868\uff0c\u901a\u7528\u6027\u66f4\u5f3a\uff0c\u53ef\u5904\u7406\u57fa\u672c\u7c7b\u578b\u548c\u5f15\u7528\u7c7b\u578b\u6570\u7ec4\u3002\u4f7f\u7528 for \u5faa\u73af\u9010\u4e2a\u6dfb\u52a0\u5143\u7d20\u5230\u5217\u8868\uff0c\u9002\u7528\u4e8e\u6240\u6709\u7c7b\u578b\u7684\u6570\u7ec4\uff0c\u4f46\u6548\u7387\u8f83\u4f4e\u3002 \u5982\u4f55\u5728 Java \u4e2d\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u96c6\u5408 \u7b80\u4ecb\uff1a\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u96c6\u5408\u3002\u96c6\u5408\u6bd4\u6570\u7ec4\u6709\u66f4\u591a\u7684\u4f18\u70b9\uff0c\u5305\u62ec\u52a8\u6001\u6570\u636e\u7ed3\u6784\u3001\u7b80\u5316\u7684\u5143\u7d20\u6dfb\u52a0\u548c\u5220\u9664\u4ee5\u53ca\u5f3a\u5927\u7684\u8fc7\u6ee4\u548c\u6620\u5c04\u529f\u80fd\u3002 \u65b9\u6cd5\uff1a 1. \u4f7f\u7528 Arrays.asList()\uff1a\u8fd9\u662f\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u4e0d\u53ef\u53d8\u5217\u8868\u7684\u6700\u7b80\u5355\u65b9\u6cd5\u3002\u4f46\u662f\uff0c\u5b83\u53ea\u9002\u7528\u4e8e\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\uff0c\u5e76\u4e14\u4e0d\u5141\u8bb8\u6dfb\u52a0\u6216\u5220\u9664\u5143\u7d20\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] arr = {1, 2, 3}; List&lt;Integer&gt; list = Arrays.asList(arr); \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 ArrayList(Arrays.asList())\uff1a\u6b64\u65b9\u6cd5\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u53ef\u53d8\u5217\u8868\u3002\u5b83\u5141\u8bb8\u6dfb\u52a0\u548c\u5220\u9664\u5143\u7d20\uff0c\u800c\u4e14\u6bd4 Arrays.asList() \u66f4\u9ad8\u6548\u3002 int[] arr = {1, 2, 3}; List&lt;Integer&gt; list = new ArrayList&lt;&gt;(Arrays.asList(arr)); \u767b\u5f55\u540e\u590d\u5236 3. \u4f7f\u7528 Stream.of() [&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-38158","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38158","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=38158"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38158\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=38158"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=38158"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=38158"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}