{"id":66012,"date":"2025-05-03T16:55:19","date_gmt":"2025-05-03T08:55:19","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66012\/"},"modified":"2025-05-03T16:55:19","modified_gmt":"2025-05-03T08:55:19","slug":"java%e6%80%8e%e4%b9%88%e6%8a%8a%e5%a4%9a%e4%b8%aalist%e6%94%be%e8%bf%9b%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66012\/","title":{"rendered":"java\u600e\u4e48\u628a\u591a\u4e2alist\u653e\u8fdb\u6570\u7ec4"},"content":{"rendered":"

\n \u5c06\u591a\u4e2a list \u653e\u5165 java \u6570\u7ec4\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a\u521b\u5efa\u4e00\u4e2a object[] \u6570\u7ec4\u6765\u5b58\u50a8 list\u3002\u4f7f\u7528 arrays.aslist() \u5c06 list \u8f6c\u6362\u4e3a\u6570\u7ec4\uff0c\u5e76\u5c06\u5176\u6dfb\u52a0\u5230 object[] \u6570\u7ec4\u4e2d\u3002\uff08\u53ef\u9009\uff09\u7c7b\u578b\u8f6c\u6362\u6570\u7ec4\uff0c\u4ee5\u8bbf\u95ee\u5177\u4f53\u7c7b\u578b\u7684 list\u3002\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u628a\u591a\u4e2alist\u653e\u8fdb\u6570\u7ec4\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u5c06\u591a\u4e2a List \u653e\u5165 Java \u6570\u7ec4<\/strong><\/p>\n

\u8981\u5c06\u591a\u4e2a List \u653e\u5165 Java \u6570\u7ec4\uff0c\u53ef\u4ee5\u9075\u5faa\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n

1. \u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\u6765\u5b58\u50a8 List<\/strong><\/p>\n

\u9996\u5148\uff0c\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\u6765\u5b58\u50a8 List\u3002\u8fd9\u4e2a\u6570\u7ec4\u7684\u7c7b\u578b\u5e94\u8be5\u662f List \u7684\u8d85\u7c7b\u578b\uff0c\u6bd4\u5982 Object[]<\/strong>\u3002<\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

Object[] listArray = new Object[3];<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2. \u5c06 List \u6dfb\u52a0\u5230\u6570\u7ec4\u4e2d<\/strong><\/p>\n
\u4f7f\u7528 Arrays.asList()<\/strong> \u65b9\u6cd5\u53ef\u4ee5\u5c06 List \u8f6c\u6362\u4e3a\u6570\u7ec4\u3002\u7136\u540e\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u6807\u51c6\u7684\u6570\u7ec4\u8d4b\u503c\u64cd\u4f5c\u7b26\uff08=<\/strong>\uff09\u5c06\u8f6c\u6362\u540e\u7684\u6570\u7ec4\u6dfb\u52a0\u5230 listArray<\/strong> \u4e2d\u3002<\/p>\n
listArray[0] = Arrays.asList(\"a\", \"b\", \"c\");\nlistArray[1] = Arrays.asList(1, 2, 3);\nlistArray[2] = Arrays.asList(true, false, true);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
3. \u7c7b\u578b\u8f6c\u6362\uff08\u53ef\u9009\uff09<\/strong><\/p>\n
\u5982\u679c\u4f60\u9700\u8981\u64cd\u4f5c\u5177\u4f53\u7c7b\u578b\u7684 List\uff0c\u5219\u9700\u8981\u5bf9 listArray<\/strong> \u8fdb\u884c\u7c7b\u578b\u8f6c\u6362\u3002\u4f7f\u7528 (List ) listArray[i] <\/strong> \u8bed\u6cd5\uff0c\u5176\u4e2d T<\/strong> \u662f List \u4e2d\u5143\u7d20\u7684\u7c7b\u578b\u3002<\/p>\n
List<String> strList = (List<String>) listArray[0];\nList<Integer> intList = (List<Integer>) listArray[1];\nList<Boolean> boolList = (List<Boolean>) listArray[2];<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u628a\u591a\u4e2alist\u653e\u8fdb\u6570\u7ec4\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5c06\u591a\u4e2a list \u653e\u5165 java \u6570\u7ec4\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a\u521b\u5efa\u4e00\u4e2a object[] \u6570\u7ec4\u6765\u5b58\u50a8 list\u3002\u4f7f\u7528 arrays.aslist() \u5c06 list \u8f6c\u6362\u4e3a\u6570\u7ec4\uff0c\u5e76\u5c06\u5176\u6dfb\u52a0\u5230 object[] \u6570\u7ec4\u4e2d\u3002\uff08\u53ef\u9009\uff09\u7c7b\u578b\u8f6c\u6362\u6570\u7ec4\uff0c\u4ee5\u8bbf\u95ee\u5177\u4f53\u7c7b\u578b\u7684 list\u3002 \u5982\u4f55\u5c06\u591a\u4e2a List \u653e\u5165 Java \u6570\u7ec4 \u8981\u5c06\u591a\u4e2a List \u653e\u5165 Java \u6570\u7ec4\uff0c\u53ef\u4ee5\u9075\u5faa\u4ee5\u4e0b\u6b65\u9aa4\uff1a 1. \u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\u6765\u5b58\u50a8 List \u9996\u5148\uff0c\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\u6765\u5b58\u50a8 List\u3002\u8fd9\u4e2a\u6570\u7ec4\u7684\u7c7b\u578b\u5e94\u8be5\u662f List \u7684\u8d85\u7c7b\u578b\uff0c\u6bd4\u5982 Object[]\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b Object[] listArray = new Object[3]; \u767b\u5f55\u540e\u590d\u5236 2. \u5c06 List \u6dfb\u52a0\u5230\u6570\u7ec4\u4e2d \u4f7f\u7528 Arrays.asList() \u65b9\u6cd5\u53ef\u4ee5\u5c06 List \u8f6c\u6362\u4e3a\u6570\u7ec4\u3002\u7136\u540e\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u6807\u51c6\u7684\u6570\u7ec4\u8d4b\u503c\u64cd\u4f5c\u7b26\uff08=\uff09\u5c06\u8f6c\u6362\u540e\u7684\u6570\u7ec4\u6dfb\u52a0\u5230 listArray \u4e2d\u3002 listArray[0] = Arrays.asList(“a”, “b”, […]<\/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-66012","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66012","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=66012"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66012\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66012"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66012"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66012"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}