{"id":65470,"date":"2025-05-03T13:04:16","date_gmt":"2025-05-03T05:04:16","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65470\/"},"modified":"2025-05-03T13:04:16","modified_gmt":"2025-05-03T05:04:16","slug":"java%e6%80%8e%e4%b9%88%e5%88%9b%e5%bb%ba%e6%97%a0%e4%b8%8a%e9%99%90%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65470\/","title":{"rendered":"java\u600e\u4e48\u521b\u5efa\u65e0\u4e0a\u9650\u6570\u7ec4"},"content":{"rendered":"

\n \u5728 java \u4e2d\u65e0\u6cd5\u521b\u5efa\u65e0\u4e0a\u9650\u6570\u7ec4\uff0c\u56e0\u4e3a\u6570\u7ec4\u5927\u5c0f\u5728\u521b\u5efa\u65f6\u56fa\u5b9a\u3002\u66ff\u4ee3\u65b9\u6cd5\u662f\u4f7f\u7528 arraylist \u7b49\u96c6\u5408\u7c7b\uff0c\u5b83\u4eec\u5141\u8bb8\u52a8\u6001\u589e\u52a0\u5927\u5c0f\u4ee5\u5b58\u50a8\u66f4\u591a\u5143\u7d20\u3002\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u521b\u5efa\u65e0\u4e0a\u9650\u6570\u7ec4\u63d2\u56fe\"<\/p>\n

Java \u4e2d\u521b\u5efa\u65e0\u4e0a\u9650\u6570\u7ec4<\/strong><\/p>\n

\u89e3\u7b54\uff1a<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u65e0\u6cd5\u521b\u5efa\u5927\u5c0f\u65e0\u4e0a\u9650\u7684\u6570\u7ec4\u3002\u6570\u7ec4\u662f\u56fa\u5b9a\u5927\u5c0f\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5728\u521b\u5efa\u65f6\u5fc5\u987b\u6307\u5b9a\u5927\u5c0f\u3002<\/p>\n

\u8be6\u7ec6\u89e3\u91ca\uff1a<\/strong><\/p>\n

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

Java \u4e2d\u7684\u6570\u7ec4\u5927\u5c0f\u5728\u521b\u5efa\u65f6\u7531 [] \u4e4b\u540e\u7684\u6574\u6570\u51b3\u5b9a\u3002\u4f8b\u5982\uff1a<\/p>\n

int[] numbers = new int[5]; \/\/ \u521b\u5efa\u4e00\u4e2a\u5927\u5c0f\u4e3a 5 \u7684\u6570\u7ec4<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4e00\u65e6\u521b\u5efa\u4e86\u6570\u7ec4\uff0c\u5176\u5927\u5c0f\u65e0\u6cd5\u66f4\u6539\u3002\u5982\u679c\u9700\u8981\u5b58\u50a8\u66f4\u591a\u5143\u7d20\uff0c\u5219\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\u6216\u4f7f\u7528\u5176\u4ed6\u6570\u636e\u7ed3\u6784\uff0c\u4f8b\u5982 ArrayList\u3002<\/p>\n
\u66ff\u4ee3\u65b9\u6cd5\uff1a<\/strong><\/p>\n
\u867d\u7136 Java \u4e2d\u65e0\u6cd5\u521b\u5efa\u65e0\u4e0a\u9650\u6570\u7ec4\uff0c\u4f46\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528 ArrayList \u7b49\u96c6\u5408\u7c7b\u6765\u5b9e\u73b0\u7c7b\u4f3c\u7684\u6548\u679c\u3002ArrayList \u662f\u4e00\u4e2a\u52a8\u6001\u5927\u5c0f\u7684\u5217\u8868\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u6dfb\u52a0\u6216\u5220\u9664\u5143\u7d20\u3002<\/p>\n
\u8981\u521b\u5efa ArrayList\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n
ArrayList<Integer> numbers = new ArrayList<>();<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u7136\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528 add() \u65b9\u6cd5\u6dfb\u52a0\u5143\u7d20\uff1a<\/p>\n
numbers.add(10);\nnumbers.add(20);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4e0e\u6570\u7ec4\u4e0d\u540c\uff0cArrayList \u7684\u5927\u5c0f\u53ef\u4ee5\u52a8\u6001\u589e\u52a0\uff0c\u800c\u65e0\u9700\u521b\u5efa\u65b0\u6570\u7ec4\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u521b\u5efa\u65e0\u4e0a\u9650\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":"
\u5728 java \u4e2d\u65e0\u6cd5\u521b\u5efa\u65e0\u4e0a\u9650\u6570\u7ec4\uff0c\u56e0\u4e3a\u6570\u7ec4\u5927\u5c0f\u5728\u521b\u5efa\u65f6\u56fa\u5b9a\u3002\u66ff\u4ee3\u65b9\u6cd5\u662f\u4f7f\u7528 arraylist \u7b49\u96c6\u5408\u7c7b\uff0c\u5b83\u4eec\u5141\u8bb8\u52a8\u6001\u589e\u52a0\u5927\u5c0f\u4ee5\u5b58\u50a8\u66f4\u591a\u5143\u7d20\u3002 Java \u4e2d\u521b\u5efa\u65e0\u4e0a\u9650\u6570\u7ec4 \u89e3\u7b54\uff1a \u5728 Java \u4e2d\uff0c\u65e0\u6cd5\u521b\u5efa\u5927\u5c0f\u65e0\u4e0a\u9650\u7684\u6570\u7ec4\u3002\u6570\u7ec4\u662f\u56fa\u5b9a\u5927\u5c0f\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5728\u521b\u5efa\u65f6\u5fc5\u987b\u6307\u5b9a\u5927\u5c0f\u3002 \u8be6\u7ec6\u89e3\u91ca\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b Java \u4e2d\u7684\u6570\u7ec4\u5927\u5c0f\u5728\u521b\u5efa\u65f6\u7531 [] \u4e4b\u540e\u7684\u6574\u6570\u51b3\u5b9a\u3002\u4f8b\u5982\uff1a int[] numbers = new int[5]; \/\/ \u521b\u5efa\u4e00\u4e2a\u5927\u5c0f\u4e3a 5 \u7684\u6570\u7ec4 \u767b\u5f55\u540e\u590d\u5236 \u4e00\u65e6\u521b\u5efa\u4e86\u6570\u7ec4\uff0c\u5176\u5927\u5c0f\u65e0\u6cd5\u66f4\u6539\u3002\u5982\u679c\u9700\u8981\u5b58\u50a8\u66f4\u591a\u5143\u7d20\uff0c\u5219\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\u6216\u4f7f\u7528\u5176\u4ed6\u6570\u636e\u7ed3\u6784\uff0c\u4f8b\u5982 ArrayList\u3002 \u66ff\u4ee3\u65b9\u6cd5\uff1a \u867d\u7136 Java \u4e2d\u65e0\u6cd5\u521b\u5efa\u65e0\u4e0a\u9650\u6570\u7ec4\uff0c\u4f46\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528 ArrayList \u7b49\u96c6\u5408\u7c7b\u6765\u5b9e\u73b0\u7c7b\u4f3c\u7684\u6548\u679c\u3002ArrayList \u662f\u4e00\u4e2a\u52a8\u6001\u5927\u5c0f\u7684\u5217\u8868\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u6dfb\u52a0\u6216\u5220\u9664\u5143\u7d20\u3002 \u8981\u521b\u5efa ArrayList\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a ArrayList<Integer> numbers = new ArrayList<>(); \u767b\u5f55\u540e\u590d\u5236 \u7136\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528 add() \u65b9\u6cd5\u6dfb\u52a0\u5143\u7d20\uff1a numbers.add(10); numbers.add(20); \u767b\u5f55\u540e\u590d\u5236 \u4e0e\u6570\u7ec4\u4e0d\u540c\uff0cArrayList \u7684\u5927\u5c0f\u53ef\u4ee5\u52a8\u6001\u589e\u52a0\uff0c\u800c\u65e0\u9700\u521b\u5efa\u65b0\u6570\u7ec4\u3002 \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u521b\u5efa\u65e0\u4e0a\u9650\u6570\u7ec4\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\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-65470","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65470","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=65470"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65470\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65470"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65470"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65470"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}