{"id":65646,"date":"2025-05-03T17:34:53","date_gmt":"2025-05-03T09:34:53","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65646\/"},"modified":"2025-05-03T17:34:53","modified_gmt":"2025-05-03T09:34:53","slug":"java%e6%95%b0%e7%bb%84%e5%af%b9%e8%b1%a1%e6%80%8e%e4%b9%88%e8%b0%83%e7%94%a8%e6%8e%a5%e5%8f%a3-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65646\/","title":{"rendered":"java\u6570\u7ec4\u5bf9\u8c61\u600e\u4e48\u8c03\u7528\u63a5\u53e3"},"content":{"rendered":"<blockquote><p>\n  java\u6570\u7ec4\u5bf9\u8c61\u8c03\u7528\u63a5\u53e3\u7684\u6b65\u9aa4\uff1a\u521b\u5efa\u5b9e\u73b0\u63a5\u53e3\u7684\u533f\u540d\u5185\u90e8\u7c7b\u3002\u5c06\u6570\u7ec4\u5bf9\u8c61\u5305\u88c5\u5230list\u63a5\u53e3\u4e2d\u3002\u76f4\u63a5\u4f7f\u7528\u63a5\u53e3\u65b9\u6cd5\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111306185236931.jpg\" class=\"aligncenter\" title=\"java\u6570\u7ec4\u5bf9\u8c61\u600e\u4e48\u8c03\u7528\u63a5\u53e3\u63d2\u56fe\" alt=\"java\u6570\u7ec4\u5bf9\u8c61\u600e\u4e48\u8c03\u7528\u63a5\u53e3\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u8c03\u7528 Java \u6570\u7ec4\u5bf9\u8c61\u7684\u63a5\u53e3<\/strong><\/p>\n<p>Java \u6570\u7ec4\u5bf9\u8c61\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u8c03\u7528\u63a5\u53e3\uff1a<\/p>\n<p><strong>1. \u521b\u5efa\u4e00\u4e2a\u5b9e\u73b0\u63a5\u53e3\u7684\u533f\u540d\u5185\u90e8\u7c7b<\/strong><\/p>\n<pre>String[] names = {\"John\", \"Mary\", \"Bob\"};\n\n\/\/ \u521b\u5efa\u4e00\u4e2a\u5b9e\u73b0 List \u63a5\u53e3\u7684\u533f\u540d\u5185\u90e8\u7c7b\nList&lt;String&gt; namesList = new ArrayList&lt;&gt;() {\n    {\n        addAll(Arrays.asList(names));\n    }\n};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u5c06\u6570\u7ec4\u5bf9\u8c61\u5305\u88c5\u5230 List \u63a5\u53e3\u4e2d<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>List&lt;String&gt; namesList = Arrays.asList(names);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u76f4\u63a5\u4f7f\u7528\u63a5\u53e3\u65b9\u6cd5<\/strong><\/p>\n<pre>System.out.println(namesList.size()); \/\/ \u8f93\u51fa\u6570\u7ec4\u7684\u957f\u5ea6\nnamesList.add(\"Alice\"); \/\/ \u6570\u7ec4\u4e2d\u6dfb\u52a0\u4e00\u4e2a\u65b0\u5143\u7d20<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>\u5305\u88c5\u6570\u7ec4\u65f6\uff0c\u8fd4\u56de\u7684\u662f\u4e00\u4e2a\u4e0d\u53ef\u53d8\u7684 List\u3002\u4efb\u4f55\u5bf9 List \u7684\u4fee\u6539\u90fd\u4e0d\u4f1a\u5f71\u54cd\u539f\u59cb\u6570\u7ec4\u3002<\/li>\n<li>\u5c06\u6570\u7ec4\u5305\u88c5\u5230 List \u4e2d\u9700\u8981\u8fdb\u884c\u989d\u5916\u7684\u5185\u5b58\u5206\u914d\uff0c\u56e0\u6b64\u5728\u4e0d\u9700\u8981\u63a5\u53e3\u65b9\u6cd5\u65f6\uff0c\u8bf7\u907f\u514d\u8fd9\u6837\u505a\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u5bf9\u8c61\u600e\u4e48\u8c03\u7528\u63a5\u53e3\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\u6570\u7ec4\u5bf9\u8c61\u8c03\u7528\u63a5\u53e3\u7684\u6b65\u9aa4\uff1a\u521b\u5efa\u5b9e\u73b0\u63a5\u53e3\u7684\u533f\u540d\u5185\u90e8\u7c7b\u3002\u5c06\u6570\u7ec4\u5bf9\u8c61\u5305\u88c5\u5230list\u63a5\u53e3\u4e2d\u3002\u76f4\u63a5\u4f7f\u7528\u63a5\u53e3\u65b9\u6cd5\u3002 \u5982\u4f55\u8c03\u7528 Java \u6570\u7ec4\u5bf9\u8c61\u7684\u63a5\u53e3 Java \u6570\u7ec4\u5bf9\u8c61\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u8c03\u7528\u63a5\u53e3\uff1a 1. \u521b\u5efa\u4e00\u4e2a\u5b9e\u73b0\u63a5\u53e3\u7684\u533f\u540d\u5185\u90e8\u7c7b String[] names = {&#8220;John&#8221;, &#8220;Mary&#8221;, &#8220;Bob&#8221;}; \/\/ \u521b\u5efa\u4e00\u4e2a\u5b9e\u73b0 List \u63a5\u53e3\u7684\u533f\u540d\u5185\u90e8\u7c7b List&lt;String&gt; namesList = new ArrayList&lt;&gt;() { { addAll(Arrays.asList(names)); } }; \u767b\u5f55\u540e\u590d\u5236 2. \u5c06\u6570\u7ec4\u5bf9\u8c61\u5305\u88c5\u5230 List \u63a5\u53e3\u4e2d \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b List&lt;String&gt; namesList = Arrays.asList(names); \u767b\u5f55\u540e\u590d\u5236 3. \u76f4\u63a5\u4f7f\u7528\u63a5\u53e3\u65b9\u6cd5 System.out.println(namesList.size()); \/\/ \u8f93\u51fa\u6570\u7ec4\u7684\u957f\u5ea6 namesList.add(&#8220;Alice&#8221;); \/\/ \u6570\u7ec4\u4e2d\u6dfb\u52a0\u4e00\u4e2a\u65b0\u5143\u7d20 \u767b\u5f55\u540e\u590d\u5236 \u6ce8\u610f\uff1a \u5305\u88c5\u6570\u7ec4\u65f6\uff0c\u8fd4\u56de\u7684\u662f\u4e00\u4e2a\u4e0d\u53ef\u53d8\u7684 List\u3002\u4efb\u4f55\u5bf9 List \u7684\u4fee\u6539\u90fd\u4e0d\u4f1a\u5f71\u54cd\u539f\u59cb\u6570\u7ec4\u3002 \u5c06\u6570\u7ec4\u5305\u88c5\u5230 List [&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-65646","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65646","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=65646"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65646\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65646"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65646"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}