{"id":66056,"date":"2025-05-03T10:35:06","date_gmt":"2025-05-03T02:35:06","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66056\/"},"modified":"2025-05-03T10:35:06","modified_gmt":"2025-05-03T02:35:06","slug":"java%e4%bb%bb%e6%84%8f%e9%95%bf%e5%ba%a6%e7%9a%84%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e5%ae%9a%e4%b9%89-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66056\/","title":{"rendered":"java\u4efb\u610f\u957f\u5ea6\u7684\u6570\u7ec4\u600e\u4e48\u5b9a\u4e49"},"content":{"rendered":"

\n java\u4e2d\u4e0d\u5b58\u5728\u4efb\u610f\u957f\u5ea6\u6570\u7ec4\uff0c\u4f46\u53ef\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u6a21\u62df\uff1a1. \u4f7f\u7528object\u6570\u7ec4\uff1b2. \u4f7f\u7528\u6cdb\u578b\u6570\u7ec4\uff1b3. \u4f7f\u7528collection\uff1b4. \u521b\u5efa\u81ea\u5b9a\u4e49\u6570\u7ec4\u7c7b\u3002\n<\/p><\/blockquote>\n

\"java\u4efb\u610f\u957f\u5ea6\u7684\u6570\u7ec4\u600e\u4e48\u5b9a\u4e49\u63d2\u56fe\"<\/p>\n

Java \u4e2d\u4efb\u610f\u957f\u5ea6\u6570\u7ec4\u7684\u5b9a\u4e49<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u6570\u7ec4\u7684\u957f\u5ea6\u662f\u56fa\u5b9a\u7684\uff0c\u4e0d\u80fd\u5728\u521b\u5efa\u540e\u8fdb\u884c\u4fee\u6539\u3002\u4f46\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u5b9a\u4e49\u4efb\u610f\u957f\u5ea6\u7684\u6570\u7ec4\uff1a<\/p>\n

\u4f7f\u7528 Object[] \u6570\u7ec4<\/strong><\/p>\n

\u6700\u901a\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 Object[] \u6570\u7ec4\uff0c\u5b83\u53ef\u4ee5\u5b58\u50a8\u4efb\u4f55\u7c7b\u578b\u7684\u5bf9\u8c61\uff0c\u5305\u62ec\u5176\u4ed6\u6570\u7ec4\u3002<\/p>\n

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

Object[] anyLengthArray = new Object[] {1, \"String\", new int[] {1, 2, 3}};<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4f7f\u7528\u6cdb\u578b\u6570\u7ec4<\/strong><\/p>\n
\u6cdb\u578b\u6570\u7ec4\u5141\u8bb8\u6307\u5b9a\u6240\u5b58\u50a8\u5bf9\u8c61\u7684\u7c7b\u578b\uff1a<\/p>\n
Integer[] anyLengthArray = new Integer[] {1, 2, 3};<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4f7f\u7528 Collection<\/strong><\/p>\n
Collection \u63a5\u53e3\u53ca\u5176\u5b9e\u73b0\uff08\u4f8b\u5982 ArrayList\uff09\u4e0d\u9700\u8981\u6307\u5b9a\u56fa\u5b9a\u957f\u5ea6\uff0c\u8fd8\u53ef\u4ee5\u5b58\u50a8\u4efb\u4f55\u7c7b\u578b\u7684\u5bf9\u8c61\u3002<\/p>\n
List<Integer> anyLengthArray = new ArrayList<>()<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4f7f\u7528\u81ea\u5b9a\u4e49\u6570\u7ec4\u7c7b<\/strong><\/p>\n
\u53ef\u4ee5\u521b\u5efa\u81ea\u5df1\u7684\u6570\u7ec4\u7c7b\uff0c\u8be5\u7c7b\u5305\u542b\u4e00\u4e2a\u52a8\u6001\u5927\u5c0f\u7684\u5e95\u5c42\u6570\u636e\u7ed3\u6784\uff1a<\/p>\n
public class AnyLengthArray<T> {\n    private Object[] array;\n\n    public AnyLengthArray() {\n        array = new Object[0];\n    }\n\n    \/\/ \u6dfb\u52a0\u5143\u7d20\n    public void add(T element) {\n        Object[] newArray = new Object[array.length + 1];\n        for (int i = 0; i < array.length; i++) {\n            newArray[i] = array[i];\n        }\n        newArray[array.length] = element;\n        array = newArray;\n    }\n\n    \/\/ \u83b7\u53d6\u5143\u7d20\n    public T get(int index) {\n        if (index >= 0 && index < array.length) {\n            return (T) array[index];\n        }\n        return null;\n    }\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u5c31\u662fjava\u4efb\u610f\u957f\u5ea6\u7684\u6570\u7ec4\u600e\u4e48\u5b9a\u4e49\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
java\u4e2d\u4e0d\u5b58\u5728\u4efb\u610f\u957f\u5ea6\u6570\u7ec4\uff0c\u4f46\u53ef\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u6a21\u62df\uff1a1. \u4f7f\u7528object\u6570\u7ec4\uff1b2. \u4f7f\u7528\u6cdb\u578b\u6570\u7ec4\uff1b3. \u4f7f\u7528collection\uff1b4. \u521b\u5efa\u81ea\u5b9a\u4e49\u6570\u7ec4\u7c7b\u3002 Java \u4e2d\u4efb\u610f\u957f\u5ea6\u6570\u7ec4\u7684\u5b9a\u4e49 \u5728 Java \u4e2d\uff0c\u6570\u7ec4\u7684\u957f\u5ea6\u662f\u56fa\u5b9a\u7684\uff0c\u4e0d\u80fd\u5728\u521b\u5efa\u540e\u8fdb\u884c\u4fee\u6539\u3002\u4f46\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u5b9a\u4e49\u4efb\u610f\u957f\u5ea6\u7684\u6570\u7ec4\uff1a \u4f7f\u7528 Object[] \u6570\u7ec4 \u6700\u901a\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 Object[] \u6570\u7ec4\uff0c\u5b83\u53ef\u4ee5\u5b58\u50a8\u4efb\u4f55\u7c7b\u578b\u7684\u5bf9\u8c61\uff0c\u5305\u62ec\u5176\u4ed6\u6570\u7ec4\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b Object[] anyLengthArray = new Object[] {1, “String”, new int[] {1, 2, 3}}; \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u6cdb\u578b\u6570\u7ec4 \u6cdb\u578b\u6570\u7ec4\u5141\u8bb8\u6307\u5b9a\u6240\u5b58\u50a8\u5bf9\u8c61\u7684\u7c7b\u578b\uff1a Integer[] anyLengthArray = new Integer[] {1, 2, 3}; \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528 Collection Collection \u63a5\u53e3\u53ca\u5176\u5b9e\u73b0\uff08\u4f8b\u5982 ArrayList\uff09\u4e0d\u9700\u8981\u6307\u5b9a\u56fa\u5b9a\u957f\u5ea6\uff0c\u8fd8\u53ef\u4ee5\u5b58\u50a8\u4efb\u4f55\u7c7b\u578b\u7684\u5bf9\u8c61\u3002 List<Integer> anyLengthArray = new ArrayList<>() \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u81ea\u5b9a\u4e49\u6570\u7ec4\u7c7b \u53ef\u4ee5\u521b\u5efa\u81ea\u5df1\u7684\u6570\u7ec4\u7c7b\uff0c\u8be5\u7c7b\u5305\u542b\u4e00\u4e2a\u52a8\u6001\u5927\u5c0f\u7684\u5e95\u5c42\u6570\u636e\u7ed3\u6784\uff1a public […]<\/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-66056","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66056","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=66056"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66056\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66056"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66056"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66056"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}