{"id":35592,"date":"2024-11-26T08:50:48","date_gmt":"2024-11-26T00:50:48","guid":{"rendered":"https:\/\/fwq.ai\/blog\/35592\/"},"modified":"2024-11-26T08:50:48","modified_gmt":"2024-11-26T00:50:48","slug":"java%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e5%88%a0%e9%99%a4%e7%ac%ac%e4%b8%80%e4%b8%aa%e5%85%83%e7%b4%a0","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/35592\/","title":{"rendered":"java\u6570\u7ec4\u600e\u4e48\u5220\u9664\u7b2c\u4e00\u4e2a\u5143\u7d20"},"content":{"rendered":"<blockquote><p>\n  \u5220\u9664\u6570\u7ec4\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u65b9\u6cd5\u6709\u4e24\u4e2a\uff1a\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\u521b\u5efa\u65b0\u6570\u7ec4\uff0c\u5e76\u590d\u5236\u539f\u6570\u7ec4\u4e2d\u7684\u7b2c 2 \u4e2a\u5143\u7d20\u5f00\u59cb\u7684\u90e8\u5206\u3002\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a arraylist\uff0c\u4f7f\u7528 remove() \u5220\u9664\u7b2c\u4e00\u4e2a\u5143\u7d20\uff0c\u7136\u540e\u518d\u8f6c\u6362\u56de\u6570\u7ec4\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/04\/2024110406400221795.jpg\" class=\"aligncenter\" title=\"java\u6570\u7ec4\u600e\u4e48\u5220\u9664\u7b2c\u4e00\u4e2a\u5143\u7d20\u63d2\u56fe\" alt=\"java\u6570\u7ec4\u600e\u4e48\u5220\u9664\u7b2c\u4e00\u4e2a\u5143\u7d20\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u7528 Java \u5220\u9664\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20<\/strong><\/p>\n<p><strong>\u76f4\u63a5\u65b9\u6cd5<\/strong><\/p>\n<p>\u4f7f\u7528 System.arraycopy() \u65b9\u6cd5\uff1a<\/p>\n<pre>int[] myArray = {1, 2, 3, 4, 5};\n\n\/\/ \u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5927\u5c0f\u6bd4\u539f\u59cb\u6570\u7ec4\u5c11\u4e00\u4e2a\u5143\u7d20\nint[] newArray = new int[myArray.length - 1];\n\n\/\/ \u5c06\u539f\u59cb\u6570\u7ec4\u4e2d\u7d22\u5f15 1 \u5f00\u59cb\u7684\u5143\u7d20\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d\nSystem.arraycopy(myArray, 1, newArray, 0, newArray.length);\n\n\/\/ \u539f\u59cb\u6570\u7ec4\u73b0\u5728\u5c11\u4e86\u4e00\u4e2a\u5143\u7d20\nmyArray = newArray;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 Collection<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a ArrayList\uff0c\u7136\u540e\u4f7f\u7528 remove() \u65b9\u6cd5\uff1a<\/p>\n<pre>\/\/ \u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a ArrayList\nArrayList&lt;Integer&gt; myList = new ArrayList&lt;&gt;(Arrays.asList(myArray));\n\n\/\/ \u5220\u9664\u7b2c\u4e00\u4e2a\u5143\u7d20\nmyList.remove(0);\n\n\/\/ \u5c06 ArrayList \u8f6c\u6362\u56de\u6570\u7ec4\nmyArray = myList.stream().mapToInt(i -&gt; i).toArray();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u600e\u4e48\u5220\u9664\u7b2c\u4e00\u4e2a\u5143\u7d20\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":"<p>\u5220\u9664\u6570\u7ec4\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u65b9\u6cd5\u6709\u4e24\u4e2a\uff1a\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\u521b\u5efa\u65b0\u6570\u7ec4\uff0c\u5e76\u590d\u5236\u539f\u6570\u7ec4\u4e2d\u7684\u7b2c 2 \u4e2a\u5143\u7d20\u5f00\u59cb\u7684\u90e8\u5206\u3002\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a arraylist\uff0c\u4f7f\u7528 remove() \u5220\u9664\u7b2c\u4e00\u4e2a\u5143\u7d20\uff0c\u7136\u540e\u518d\u8f6c\u6362\u56de\u6570\u7ec4\u3002 \u5982\u4f55\u7528 Java \u5220\u9664\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20 \u76f4\u63a5\u65b9\u6cd5 \u4f7f\u7528 System.arraycopy() \u65b9\u6cd5\uff1a int[] myArray = {1, 2, 3, 4, 5}; \/\/ \u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5927\u5c0f\u6bd4\u539f\u59cb\u6570\u7ec4\u5c11\u4e00\u4e2a\u5143\u7d20 int[] newArray = new int[myArray.length &#8211; 1]; \/\/ \u5c06\u539f\u59cb\u6570\u7ec4\u4e2d\u7d22\u5f15 1 \u5f00\u59cb\u7684\u5143\u7d20\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d System.arraycopy(myArray, 1, newArray, 0, newArray.length); \/\/ \u539f\u59cb\u6570\u7ec4\u73b0\u5728\u5c11\u4e86\u4e00\u4e2a\u5143\u7d20 myArray = newArray; \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528 Collection \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a ArrayList\uff0c\u7136\u540e\u4f7f\u7528 remove() \u65b9\u6cd5\uff1a \/\/ [&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-35592","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35592","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=35592"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35592\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=35592"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=35592"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=35592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}