{"id":37370,"date":"2024-11-26T13:41:17","date_gmt":"2024-11-26T05:41:17","guid":{"rendered":"https:\/\/fwq.ai\/blog\/37370\/"},"modified":"2024-11-26T13:41:17","modified_gmt":"2024-11-26T05:41:17","slug":"java%e6%80%8e%e4%b9%88%e5%b0%86%e6%95%b0%e7%bb%84%e8%bd%aclist","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/37370\/","title":{"rendered":"java\u600e\u4e48\u5c06\u6570\u7ec4\u8f6clist"},"content":{"rendered":"

\n \u5c06 java \u6570\u7ec4\u8f6c\u6362\u4e3a list \u6709\u4ee5\u4e0b\u4e09\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 arrays.aslist() \u65b9\u6cd5\u521b\u5efa\u56fa\u5b9a\u5927\u5c0f\u7684 list\uff0c\u5f15\u7528\u539f\u59cb\u6570\u7ec4\u3002\u4f7f\u7528 arraylist \u6784\u9020\u51fd\u6570\u521b\u5efa\u53ef\u53d8\u5927\u5c0f\u7684 list\uff0c\u4e0d\u5f15\u7528\u539f\u59cb\u6570\u7ec4\u3002\u4f7f\u7528 java 8 \u53ca\u66f4\u9ad8\u7248\u672c\u7684\u6d41\u5904\u7406\u521b\u5efa\u72ec\u7acb\u7684 list\uff0c\u5141\u8bb8\u8fc7\u6ee4\u6216\u8f6c\u6362\u3002\u63a8\u8350\u4f7f\u7528 arraylist \u6784\u9020\u51fd\u6570\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u521b\u5efa\u4e86\u4e00\u4e2a\u72ec\u7acb\u4e14\u53ef\u4fee\u6539\u7684 list\u3002\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u5c06\u6570\u7ec4\u8f6clist\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u5c06 Java \u6570\u7ec4\u8f6c\u6362\u4e3a List<\/strong><\/p>\n

\u76f4\u63a5\u65b9\u6cd5\uff1a<\/strong><\/p>\n

\u4f7f\u7528 Arrays.asList() \u65b9\u6cd5\uff1a<\/p>\n

int[] intArr = {1, 2, 3, 4, 5};\nList<Integer> intList = Arrays.asList(intArr);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6b64\u65b9\u6cd5\u4f1a\u8fd4\u56de\u4e00\u4e2a\u56fa\u5b9a\u5927\u5c0f\u7684 List\uff0c\u5b83\u5f15\u7528\u539f\u59cb\u6570\u7ec4\uff0c\u5bf9\u8be5 List \u6240\u505a\u7684\u4efb\u4f55\u66f4\u6539\u4e5f\u4f1a\u53cd\u6620\u5728\u6570\u7ec4\u4e2d\u3002<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
\u53ef\u53d8\u5927\u5c0f List\uff1a<\/strong><\/p>\n
\u4f7f\u7528 ArrayList(Collection extends E>) \u6784\u9020\u51fd\u6570\uff1a<\/p>\n
List<Integer> intList = new ArrayList<>(Arrays.asList(intArr));<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6b64\u65b9\u6cd5\u4f1a\u521b\u5efa\u4e00\u4e2a\u72ec\u7acb\u7684 List\uff0c\u5b83\u4e0d\u5f15\u7528\u539f\u59cb\u6570\u7ec4\uff0c\u5bf9\u8be5 List \u6240\u505a\u7684\u4efb\u4f55\u66f4\u6539\u90fd\u4e0d\u4f1a\u5f71\u54cd\u6570\u7ec4\u3002<\/p>\n
\u6d41\u5904\u7406\uff1a<\/strong><\/p>\n
\u4f7f\u7528 Java 8 \u53ca\u66f4\u9ad8\u7248\u672c\u7684 IntStream\uff1a<\/p>\n
intList = IntStream.of(intArr).boxed().collect(Collectors.toList());<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6b64\u65b9\u6cd5\u4f1a\u521b\u5efa\u4e00\u4e2a\u72ec\u7acb\u7684 List\uff0c\u5b83\u4e0d\u5f15\u7528\u539f\u59cb\u6570\u7ec4\uff0c\u8fd8\u5141\u8bb8\u5bf9\u6570\u7ec4\u8fdb\u884c\u8fc7\u6ee4\u6216\u8f6c\u6362\u3002<\/p>\n
\u63a8\u8350\u7684\u65b9\u6cd5\uff1a<\/strong><\/p>\n
\u53ef\u53d8\u5927\u5c0f\u7684 ArrayList \u65b9\u6cd5\u662f\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a List \u7684\u9996\u9009\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u521b\u5efa\u4e86\u4e00\u4e2a\u72ec\u7acb\u7684 List\uff0c\u5141\u8bb8\u5bf9 List \u8fdb\u884c\u4fee\u6539\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5c06\u6570\u7ec4\u8f6clist\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":"
\u5c06 java \u6570\u7ec4\u8f6c\u6362\u4e3a list \u6709\u4ee5\u4e0b\u4e09\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 arrays.aslist() \u65b9\u6cd5\u521b\u5efa\u56fa\u5b9a\u5927\u5c0f\u7684 list\uff0c\u5f15\u7528\u539f\u59cb\u6570\u7ec4\u3002\u4f7f\u7528 arraylist \u6784\u9020\u51fd\u6570\u521b\u5efa\u53ef\u53d8\u5927\u5c0f\u7684 list\uff0c\u4e0d\u5f15\u7528\u539f\u59cb\u6570\u7ec4\u3002\u4f7f\u7528 java 8 \u53ca\u66f4\u9ad8\u7248\u672c\u7684\u6d41\u5904\u7406\u521b\u5efa\u72ec\u7acb\u7684 list\uff0c\u5141\u8bb8\u8fc7\u6ee4\u6216\u8f6c\u6362\u3002\u63a8\u8350\u4f7f\u7528 arraylist \u6784\u9020\u51fd\u6570\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u521b\u5efa\u4e86\u4e00\u4e2a\u72ec\u7acb\u4e14\u53ef\u4fee\u6539\u7684 list\u3002 \u5982\u4f55\u5c06 Java \u6570\u7ec4\u8f6c\u6362\u4e3a List \u76f4\u63a5\u65b9\u6cd5\uff1a \u4f7f\u7528 Arrays.asList() \u65b9\u6cd5\uff1a int[] intArr = {1, 2, 3, 4, 5}; List<Integer> intList = Arrays.asList(intArr); \u767b\u5f55\u540e\u590d\u5236 \u6b64\u65b9\u6cd5\u4f1a\u8fd4\u56de\u4e00\u4e2a\u56fa\u5b9a\u5927\u5c0f\u7684 List\uff0c\u5b83\u5f15\u7528\u539f\u59cb\u6570\u7ec4\uff0c\u5bf9\u8be5 List \u6240\u505a\u7684\u4efb\u4f55\u66f4\u6539\u4e5f\u4f1a\u53cd\u6620\u5728\u6570\u7ec4\u4e2d\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u53ef\u53d8\u5927\u5c0f List\uff1a \u4f7f\u7528 ArrayList(Collection extends E>) \u6784\u9020\u51fd\u6570\uff1a List<Integer> intList = new […]<\/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-37370","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37370","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=37370"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37370\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=37370"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=37370"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=37370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}