{"id":36929,"date":"2024-11-26T15:20:25","date_gmt":"2024-11-26T07:20:25","guid":{"rendered":"https:\/\/fwq.ai\/blog\/36929\/"},"modified":"2024-11-26T15:20:25","modified_gmt":"2024-11-26T07:20:25","slug":"%e6%80%8e%e4%b9%88%e5%ae%9a%e4%b9%89list%e6%95%b0%e7%bb%84-java","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/36929\/","title":{"rendered":"\u600e\u4e48\u5b9a\u4e49list\u6570\u7ec4 java"},"content":{"rendered":"<blockquote><p>\n  java\u4e2dlist\u6570\u7ec4\u662f\u4e00\u79cd\u6709\u5e8f\u7684\u53ef\u53d8\u957f\u96c6\u5408\uff0c\u5b83\u5141\u8bb8\u5b58\u50a8\u5404\u79cd\u6570\u636e\u7c7b\u578b\u7684\u5143\u7d20\u5e76\u6309\u63d2\u5165\u987a\u5e8f\u8bbf\u95ee\u5b83\u4eec\u3002\u5173\u952e\u7279\u6027\u5305\u62ec\uff1a\u6709\u5e8f\u3001\u53ef\u53d8\u957f\u3001\u5141\u8bb8\u91cd\u590d\u548c\u7d22\u5f15\u8bbf\u95ee\u3002\u5b9a\u4e49\u8bed\u6cd5\u4e3a\uff1alist listname = new arraylist()\uff0c\u5176\u4e2d\u6307\u5b9a\u5143\u7d20\u7c7b\u578b\uff0clistname\u662f\u53d8\u91cf\u540d\uff0cnew arraylist()\u521b\u5efaarraylist\u5bf9\u8c61\u3002\u5e38\u7528\u65b9\u6cd5\u6709add(\u5143\u7d20)\u3001get(\u7d22\u5f15)\u3001size()\u3001contains(\u5143\u7d20)\u548cremove(\u7d22\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/12\/2024111221512490838.jpg\" class=\"aligncenter\" title=\"\u600e\u4e48\u5b9a\u4e49list\u6570\u7ec4 java\u63d2\u56fe\" alt=\"\u600e\u4e48\u5b9a\u4e49list\u6570\u7ec4 java\u63d2\u56fe\" \/><\/p>\n<p><strong>Java\u4e2dList\u6570\u7ec4\u7684\u5b9a\u4e49<\/strong><\/p>\n<p>List\u6570\u7ec4\u662fJava\u4e2d\u4e00\u79cd\u52a8\u6001\u5927\u5c0f\u7684\u6709\u5e8f\u96c6\u5408\uff0c\u5b83\u53ef\u4ee5\u5b58\u50a8\u5404\u79cd\u6570\u636e\u7c7b\u578b\u7684\u5143\u7d20\u3002\u5b83\u7684\u4e3b\u8981\u76ee\u7684\u662f\u4ee5\u5143\u7d20\u63d2\u5165\u987a\u5e8f\u5b58\u50a8\u548c\u8bbf\u95ee\u6570\u636e\u3002<\/p>\n<p><strong>\u5173\u952e\u7279\u6027\uff1a<\/strong><\/p>\n<ul>\n<li>\u6709\u5e8f\uff1a\u5143\u7d20\u6309\u63d2\u5165\u987a\u5e8f\u3002<\/li>\n<li>\u53ef\u53d8\u957f\uff1a\u53ef\u4ee5\u5728\u8fd0\u884c\u65f6\u52a8\u6001\u6dfb\u52a0\u6216\u5220\u9664\u5143\u7d20\uff0c\u56e0\u6b64\u6570\u7ec4\u5927\u5c0f\u4f1a\u6839\u636e\u9700\u8981\u8c03\u6574\u3002<\/li>\n<li>\u5141\u8bb8\u91cd\u590d\uff1a\u53ef\u4ee5\u5b58\u50a8\u591a\u4e2a\u76f8\u540c\u5143\u7d20\u3002<\/li>\n<li>\u7d22\u5f15\u8bbf\u95ee\uff1a\u53ef\u4ee5\u4f7f\u7528\u7d22\u5f15\uff08\u4ece0\u5f00\u59cb\uff09\u8bbf\u95ee\u5404\u4e2a\u5143\u7d20\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9a\u4e49\u8bed\u6cd5\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>List&lt;\u5143\u7d20\u7c7b\u578b&gt; listName = new ArrayList&lt;&gt;();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li> <strong>List\uff1a<\/strong>\u6307\u5b9a\u5217\u8868\u8981\u5b58\u50a8\u7684\u5143\u7d20\u7c7b\u578b\u3002<\/li>\n<li> <strong>listName\uff1a<\/strong>\u53d8\u91cf\u540d\uff0c\u7528\u4e8e\u5f15\u7528List\u6570\u7ec4\u3002<\/li>\n<li> <strong>new ArrayList()\uff1a<\/strong>\u521b\u5efaArrayList\u5bf9\u8c61\uff0c\u5b83\u5b9e\u73b0\u4e86List\u63a5\u53e3\u3002<\/li>\n<\/ul>\n<p><strong>\u5e38\u7528\u65b9\u6cd5\uff1a<\/strong><\/p>\n<ul>\n<li> <strong>add(\u5143\u7d20)\uff1a<\/strong>\u6dfb\u52a0\u5143\u7d20\u5230\u5217\u8868\u7684\u672b\u5c3e\u3002<\/li>\n<li> <strong>get(\u7d22\u5f15)\uff1a<\/strong>\u83b7\u53d6\u6307\u5b9a\u7d22\u5f15\u5904\u7684\u5143\u7d20\u3002<\/li>\n<li> <strong>size()\uff1a<\/strong>\u8fd4\u56de\u5217\u8868\u4e2d\u7684\u5143\u7d20\u6570\u91cf\u3002<\/li>\n<li> <strong>contns(\u5143\u7d20)\uff1a<\/strong>\u68c0\u67e5\u5217\u8868\u4e2d\u662f\u5426\u5305\u542b\u6307\u5b9a\u5143\u7d20\u3002<\/li>\n<li> <strong>remove(\u7d22\u5f15\/\u5143\u7d20)\uff1a<\/strong>\u4ece\u5217\u8868\u4e2d\u5220\u9664\u7d22\u5f15\u6216\u5143\u7d20\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>List&lt;String&gt; names = new ArrayList&lt;&gt;();\nnames.add(\"Alice\");\nnames.add(\"Bob\");\nnames.add(\"John\");\n\nString secondName = names.get(1);\nSystem.out.println(secondName); \/\/ \u8f93\u51fa\uff1aBob<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u600e\u4e48\u5b9a\u4e49list\u6570\u7ec4 java\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\u4e2dlist\u6570\u7ec4\u662f\u4e00\u79cd\u6709\u5e8f\u7684\u53ef\u53d8\u957f\u96c6\u5408\uff0c\u5b83\u5141\u8bb8\u5b58\u50a8\u5404\u79cd\u6570\u636e\u7c7b\u578b\u7684\u5143\u7d20\u5e76\u6309\u63d2\u5165\u987a\u5e8f\u8bbf\u95ee\u5b83\u4eec\u3002\u5173\u952e\u7279\u6027\u5305\u62ec\uff1a\u6709\u5e8f\u3001\u53ef\u53d8\u957f\u3001\u5141\u8bb8\u91cd\u590d\u548c\u7d22\u5f15\u8bbf\u95ee\u3002\u5b9a\u4e49\u8bed\u6cd5\u4e3a\uff1alist listname = new arraylist()\uff0c\u5176\u4e2d\u6307\u5b9a\u5143\u7d20\u7c7b\u578b\uff0clistname\u662f\u53d8\u91cf\u540d\uff0cnew arraylist()\u521b\u5efaarraylist\u5bf9\u8c61\u3002\u5e38\u7528\u65b9\u6cd5\u6709add(\u5143\u7d20)\u3001get(\u7d22\u5f15)\u3001size()\u3001contains(\u5143\u7d20)\u548cremove(\u7d22 Java\u4e2dList\u6570\u7ec4\u7684\u5b9a\u4e49 List\u6570\u7ec4\u662fJava\u4e2d\u4e00\u79cd\u52a8\u6001\u5927\u5c0f\u7684\u6709\u5e8f\u96c6\u5408\uff0c\u5b83\u53ef\u4ee5\u5b58\u50a8\u5404\u79cd\u6570\u636e\u7c7b\u578b\u7684\u5143\u7d20\u3002\u5b83\u7684\u4e3b\u8981\u76ee\u7684\u662f\u4ee5\u5143\u7d20\u63d2\u5165\u987a\u5e8f\u5b58\u50a8\u548c\u8bbf\u95ee\u6570\u636e\u3002 \u5173\u952e\u7279\u6027\uff1a \u6709\u5e8f\uff1a\u5143\u7d20\u6309\u63d2\u5165\u987a\u5e8f\u3002 \u53ef\u53d8\u957f\uff1a\u53ef\u4ee5\u5728\u8fd0\u884c\u65f6\u52a8\u6001\u6dfb\u52a0\u6216\u5220\u9664\u5143\u7d20\uff0c\u56e0\u6b64\u6570\u7ec4\u5927\u5c0f\u4f1a\u6839\u636e\u9700\u8981\u8c03\u6574\u3002 \u5141\u8bb8\u91cd\u590d\uff1a\u53ef\u4ee5\u5b58\u50a8\u591a\u4e2a\u76f8\u540c\u5143\u7d20\u3002 \u7d22\u5f15\u8bbf\u95ee\uff1a\u53ef\u4ee5\u4f7f\u7528\u7d22\u5f15\uff08\u4ece0\u5f00\u59cb\uff09\u8bbf\u95ee\u5404\u4e2a\u5143\u7d20\u3002 \u5b9a\u4e49\u8bed\u6cd5\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b List&lt;\u5143\u7d20\u7c7b\u578b&gt; listName = new ArrayList&lt;&gt;(); \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a List\uff1a\u6307\u5b9a\u5217\u8868\u8981\u5b58\u50a8\u7684\u5143\u7d20\u7c7b\u578b\u3002 listName\uff1a\u53d8\u91cf\u540d\uff0c\u7528\u4e8e\u5f15\u7528List\u6570\u7ec4\u3002 new ArrayList()\uff1a\u521b\u5efaArrayList\u5bf9\u8c61\uff0c\u5b83\u5b9e\u73b0\u4e86List\u63a5\u53e3\u3002 \u5e38\u7528\u65b9\u6cd5\uff1a add(\u5143\u7d20)\uff1a\u6dfb\u52a0\u5143\u7d20\u5230\u5217\u8868\u7684\u672b\u5c3e\u3002 get(\u7d22\u5f15)\uff1a\u83b7\u53d6\u6307\u5b9a\u7d22\u5f15\u5904\u7684\u5143\u7d20\u3002 size()\uff1a\u8fd4\u56de\u5217\u8868\u4e2d\u7684\u5143\u7d20\u6570\u91cf\u3002 contns(\u5143\u7d20)\uff1a\u68c0\u67e5\u5217\u8868\u4e2d\u662f\u5426\u5305\u542b\u6307\u5b9a\u5143\u7d20\u3002 remove(\u7d22\u5f15\/\u5143\u7d20)\uff1a\u4ece\u5217\u8868\u4e2d\u5220\u9664\u7d22\u5f15\u6216\u5143\u7d20\u3002 \u793a\u4f8b\uff1a List&lt;String&gt; names = new ArrayList&lt;&gt;(); names.add(&#8220;Alice&#8221;); names.add(&#8220;Bob&#8221;); names.add(&#8220;John&#8221;); String secondName = names.get(1); System.out.println(secondName); \/\/ \u8f93\u51fa\uff1aBob \u767b\u5f55\u540e\u590d\u5236 \u4ee5\u4e0a\u5c31\u662f\u600e\u4e48\u5b9a\u4e49list\u6570\u7ec4 java\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/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-36929","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36929","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=36929"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36929\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=36929"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=36929"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=36929"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}