{"id":65301,"date":"2025-05-03T14:41:16","date_gmt":"2025-05-03T06:41:16","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65301\/"},"modified":"2025-05-03T14:41:16","modified_gmt":"2025-05-03T06:41:16","slug":"%e7%b1%bb%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e5%ae%9a%e4%b9%89java-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65301\/","title":{"rendered":"\u7c7b\u6570\u7ec4\u600e\u4e48\u5b9a\u4e49JAVA"},"content":{"rendered":"<blockquote><p>\n  \u7c7b\u6570\u7ec4\u662f java \u4e2d\u7c7b\u4f3c\u6570\u7ec4\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5177\u6709\u52a8\u6001\u5927\u5c0f\u548c\u6cdb\u578b\u7b49\u5176\u4ed6\u529f\u80fd\u3002\u7279\u70b9\u5305\u62ec\uff1a1. \u52a8\u6001\u5927\u5c0f\uff0c\u53ef\u6839\u636e\u9700\u8981\u589e\u957f\u6216\u7f29\u5c0f\uff1b2. \u6cdb\u578b\uff0c\u53ef\u5b58\u50a8\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\uff1b3. \u65b9\u6cd5\uff0c\u7528\u4e8e\u6dfb\u52a0\u3001\u5220\u9664\u548c\u904d\u5386\u5143\u7d20\uff1b4. \u52a8\u6001\u5927\u5c0f\uff0c\u53ef\u6839\u636e\u9700\u8981\u589e\u957f\u6216\u7f29\u5c0f\uff1b5. \u6cdb\u578b\uff0c\u53ef\u5b58\u50a8\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\uff1b6. \u65b9\u6cd5\uff0c\u7528\u4e8e\u6dfb\u52a0\u3001\u5220\u9664\u548c\u904d\u5386\u5143\u7d20\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/12\/2024111219220376895.jpg\" class=\"aligncenter\" title=\"\u7c7b\u6570\u7ec4\u600e\u4e48\u5b9a\u4e49JAVA\u63d2\u56fe\" alt=\"\u7c7b\u6570\u7ec4\u600e\u4e48\u5b9a\u4e49JAVA\u63d2\u56fe\" \/><\/p>\n<p><strong>\u4ec0\u4e48\u662f\u7c7b\u6570\u7ec4\uff1f<\/strong><\/p>\n<p>\u7c7b\u6570\u7ec4\u662f Java \u4e2d\u7684\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u4e0e\u6570\u7ec4\u7c7b\u4f3c\uff0c\u4f46\u5177\u6709\u989d\u5916\u7684\u529f\u80fd\u548c\u7075\u6d3b\u6027\u3002\u5b83\u5141\u8bb8\u52a8\u6001\u5730\u5b58\u50a8\u548c\u8bbf\u95ee\u539f\u59cb\u7c7b\u578b\u6216\u5bf9\u8c61\u3002<\/p>\n<p><strong>\u5b9a\u4e49\u7c7b\u6570\u7ec4<\/strong><\/p>\n<p>\u8981\u5b9a\u4e49\u4e00\u4e2a\u7c7b\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>public class MyArrayList&lt;T&gt; {\n    private T[] arr;\n    private int size;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li> <strong>MyArrayList \uff1a <\/strong>\u8fd9\u662f\u7c7b\u6570\u7ec4\u7684\u540d\u79f0\uff0c\u5176\u4e2d T \u662f\u6cdb\u578b\u7c7b\u578b\u53c2\u6570\uff0c\u7528\u4e8e\u6307\u5b9a\u5b58\u50a8\u5143\u7d20\u7684\u7c7b\u578b\u3002<\/li>\n<li> <strong>private T[] arr\uff1a<\/strong>\u8fd9\u662f\u7c7b\u6570\u7ec4\u4e2d\u5b58\u50a8\u6570\u636e\u7684\u5185\u90e8\u6570\u7ec4\u3002<\/li>\n<li> <strong>private int size\uff1a<\/strong>\u8fd9\u662f\u7c7b\u6570\u7ec4\u4e2d\u5f53\u524d\u5b58\u50a8\u7684\u5143\u7d20\u6570\u91cf\u3002<\/li>\n<\/ul>\n<p><strong>\u7c7b\u6570\u7ec4\u7684\u7279\u70b9<\/strong><\/p>\n<ul>\n<li> <strong>\u52a8\u6001\u5927\u5c0f\uff1a<\/strong>\u7c7b\u6570\u7ec4\u7684\u5927\u5c0f\u53ef\u4ee5\u6839\u636e\u9700\u8981\u52a8\u6001\u589e\u957f\u6216\u7f29\u5c0f\u3002<\/li>\n<li> <strong>\u6cdb\u578b\uff1a<\/strong>\u7c7b\u6570\u7ec4\u53ef\u4ee5\u4f7f\u7528\u6cdb\u578b\u6765\u5b58\u50a8\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\uff0c\u4ece\u800c\u589e\u5f3a\u5176\u7075\u6d3b\u6027\u3002<\/li>\n<li> <strong>\u65b9\u6cd5\uff1a<\/strong>\u7c7b\u6570\u7ec4\u5305\u542b\u5404\u79cd\u65b9\u6cd5\uff0c\u7528\u4e8e\u6dfb\u52a0\u3001\u5220\u9664\u3001\u68c0\u7d22\u548c\u904d\u5386\u5143\u7d20\u3002<\/li>\n<\/ul>\n<p><strong>\u4f7f\u7528\u65b9\u6cd5<\/strong><\/p>\n<p>\u4f7f\u7528\u7c7b\u6570\u7ec4\u65f6\uff0c\u53ef\u4ee5\u6267\u884c\u4ee5\u4e0b\u64cd\u4f5c\uff1a<\/p>\n<ul>\n<li> <strong>\u6dfb\u52a0\u5143\u7d20\uff1a<\/strong>\u4f7f\u7528 add() \u65b9\u6cd5\u5c06\u5143\u7d20\u6dfb\u52a0\u5230\u7c7b\u6570\u7ec4\u7684\u672b\u5c3e\u3002<\/li>\n<li> <strong>\u5220\u9664\u5143\u7d20\uff1a<\/strong>\u4f7f\u7528 remove() \u65b9\u6cd5\u6839\u636e\u7d22\u5f15\u6216\u5143\u7d20\u672c\u8eab\u5220\u9664\u5143\u7d20\u3002<\/li>\n<li> <strong>\u68c0\u7d22\u5143\u7d20\uff1a<\/strong>\u4f7f\u7528 get() \u65b9\u6cd5\u6839\u636e\u7d22\u5f15\u68c0\u7d22\u4e00\u4e2a\u5143\u7d20\u3002<\/li>\n<li> <strong>\u904d\u5386\u5143\u7d20\uff1a<\/strong>\u4f7f\u7528 for-each \u5faa\u73af\u6216\u8fed\u4ee3\u5668\u904d\u5386\u7c7b\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\u3002<\/li>\n<li> <strong>\u83b7\u53d6\u5927\u5c0f\uff1a<\/strong>\u4f7f\u7528 size() \u65b9\u6cd5\u83b7\u53d6\u7c7b\u6570\u7ec4\u4e2d\u5b58\u50a8\u7684\u5143\u7d20\u6570\u91cf\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u7c7b\u6570\u7ec4\u600e\u4e48\u5b9a\u4e49JAVA\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7c7b\u6570\u7ec4\u662f java \u4e2d\u7c7b\u4f3c\u6570\u7ec4\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5177\u6709\u52a8\u6001\u5927\u5c0f\u548c\u6cdb\u578b\u7b49\u5176\u4ed6\u529f\u80fd\u3002\u7279\u70b9\u5305\u62ec\uff1a1. \u52a8\u6001\u5927\u5c0f\uff0c\u53ef\u6839\u636e\u9700\u8981\u589e\u957f\u6216\u7f29\u5c0f\uff1b2. \u6cdb\u578b\uff0c\u53ef\u5b58\u50a8\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\uff1b3. \u65b9\u6cd5\uff0c\u7528\u4e8e\u6dfb\u52a0\u3001\u5220\u9664\u548c\u904d\u5386\u5143\u7d20\uff1b4. \u52a8\u6001\u5927\u5c0f\uff0c\u53ef\u6839\u636e\u9700\u8981\u589e\u957f\u6216\u7f29\u5c0f\uff1b5. \u6cdb\u578b\uff0c\u53ef\u5b58\u50a8\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\uff1b6. \u65b9\u6cd5\uff0c\u7528\u4e8e\u6dfb\u52a0\u3001\u5220\u9664\u548c\u904d\u5386\u5143\u7d20\u3002 \u4ec0\u4e48\u662f\u7c7b\u6570\u7ec4\uff1f \u7c7b\u6570\u7ec4\u662f Java \u4e2d\u7684\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u4e0e\u6570\u7ec4\u7c7b\u4f3c\uff0c\u4f46\u5177\u6709\u989d\u5916\u7684\u529f\u80fd\u548c\u7075\u6d3b\u6027\u3002\u5b83\u5141\u8bb8\u52a8\u6001\u5730\u5b58\u50a8\u548c\u8bbf\u95ee\u539f\u59cb\u7c7b\u578b\u6216\u5bf9\u8c61\u3002 \u5b9a\u4e49\u7c7b\u6570\u7ec4 \u8981\u5b9a\u4e49\u4e00\u4e2a\u7c7b\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b public class MyArrayList&lt;T&gt; { private T[] arr; private int size; } \u767b\u5f55\u540e\u590d\u5236 MyArrayList \uff1a \u8fd9\u662f\u7c7b\u6570\u7ec4\u7684\u540d\u79f0\uff0c\u5176\u4e2d T \u662f\u6cdb\u578b\u7c7b\u578b\u53c2\u6570\uff0c\u7528\u4e8e\u6307\u5b9a\u5b58\u50a8\u5143\u7d20\u7684\u7c7b\u578b\u3002 private T[] arr\uff1a\u8fd9\u662f\u7c7b\u6570\u7ec4\u4e2d\u5b58\u50a8\u6570\u636e\u7684\u5185\u90e8\u6570\u7ec4\u3002 private int size\uff1a\u8fd9\u662f\u7c7b\u6570\u7ec4\u4e2d\u5f53\u524d\u5b58\u50a8\u7684\u5143\u7d20\u6570\u91cf\u3002 \u7c7b\u6570\u7ec4\u7684\u7279\u70b9 \u52a8\u6001\u5927\u5c0f\uff1a\u7c7b\u6570\u7ec4\u7684\u5927\u5c0f\u53ef\u4ee5\u6839\u636e\u9700\u8981\u52a8\u6001\u589e\u957f\u6216\u7f29\u5c0f\u3002 \u6cdb\u578b\uff1a\u7c7b\u6570\u7ec4\u53ef\u4ee5\u4f7f\u7528\u6cdb\u578b\u6765\u5b58\u50a8\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\uff0c\u4ece\u800c\u589e\u5f3a\u5176\u7075\u6d3b\u6027\u3002 \u65b9\u6cd5\uff1a\u7c7b\u6570\u7ec4\u5305\u542b\u5404\u79cd\u65b9\u6cd5\uff0c\u7528\u4e8e\u6dfb\u52a0\u3001\u5220\u9664\u3001\u68c0\u7d22\u548c\u904d\u5386\u5143\u7d20\u3002 \u4f7f\u7528\u65b9\u6cd5 \u4f7f\u7528\u7c7b\u6570\u7ec4\u65f6\uff0c\u53ef\u4ee5\u6267\u884c\u4ee5\u4e0b\u64cd\u4f5c\uff1a \u6dfb\u52a0\u5143\u7d20\uff1a\u4f7f\u7528 add() \u65b9\u6cd5\u5c06\u5143\u7d20\u6dfb\u52a0\u5230\u7c7b\u6570\u7ec4\u7684\u672b\u5c3e\u3002 \u5220\u9664\u5143\u7d20\uff1a\u4f7f\u7528 remove() \u65b9\u6cd5\u6839\u636e\u7d22\u5f15\u6216\u5143\u7d20\u672c\u8eab\u5220\u9664\u5143\u7d20\u3002 \u68c0\u7d22\u5143\u7d20\uff1a\u4f7f\u7528 get() \u65b9\u6cd5\u6839\u636e\u7d22\u5f15\u68c0\u7d22\u4e00\u4e2a\u5143\u7d20\u3002 \u904d\u5386\u5143\u7d20\uff1a\u4f7f\u7528 [&hellip;]<\/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-65301","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65301","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=65301"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65301\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65301"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65301"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65301"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}