{"id":36747,"date":"2024-11-26T08:54:04","date_gmt":"2024-11-26T00:54:04","guid":{"rendered":"https:\/\/fwq.ai\/blog\/36747\/"},"modified":"2024-11-26T08:54:04","modified_gmt":"2024-11-26T00:54:04","slug":"java%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e6%8f%92%e5%85%a5","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/36747\/","title":{"rendered":"java\u6570\u7ec4\u600e\u4e48\u63d2\u5165"},"content":{"rendered":"

\n \u5728 java \u4e2d\uff0c\u53ef\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5411\u6570\u7ec4\u63d2\u5165\u5143\u7d20\uff1a\u4f7f\u7528 arrays.copyof() \u65b9\u6cd5\uff1a\u521b\u5efa\u5305\u542b\u539f\u6570\u7ec4\u53ca\u9644\u52a0\u5143\u7d20\u7684\u65b0\u6570\u7ec4\u3002\u4f7f\u7528\u63d2\u5165\u6392\u5e8f\uff1a\u627e\u5230\u65b0\u5143\u7d20\u7684\u63d2\u5165\u4f4d\u7f6e\u5e76\u5c06\u5176\u63d2\u5165\u3002\u4f7f\u7528 arraylist\uff1a\u53ef\u53d8\u957f\u5ea6\u6570\u7ec4\uff0c\u53ef\u65b9\u4fbf\u6dfb\u52a0\u548c\u5220\u9664\u5143\u7d20\u3002\n<\/p><\/blockquote>\n

\"java\u6570\u7ec4\u600e\u4e48\u63d2\u5165\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u5728 Java \u4e2d\u5411\u6570\u7ec4\u63d2\u5165\u5143\u7d20<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u5411\u6570\u7ec4\u4e2d\u63d2\u5165\u5143\u7d20\uff1a<\/p>\n

1. \u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5<\/strong><\/p>\n

\u6b64\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u8be5\u6570\u7ec4\u5305\u542b\u539f\u59cb\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u4ee5\u53ca\u9644\u52a0\u5143\u7d20\u3002<\/p>\n

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

int[] originalArray = {1, 2, 3};\nint[] newArray = Arrays.copyOf(originalArray, originalArray.length + 1);\nnewArray[3] = 4;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2. \u4f7f\u7528\u63d2\u5165\u6392\u5e8f<\/strong><\/p>\n
\u6b64\u7b97\u6cd5\u5728\u6570\u7ec4\u4e2d\u4e3a\u65b0\u5143\u7d20\u627e\u5230\u5408\u9002\u7684\u63d2\u5165\u4f4d\u7f6e\uff0c\u5e76\u5c06\u5176\u63d2\u5165\u5230\u8be5\u4f4d\u7f6e\u3002<\/p>\n
int[] originalArray = {1, 2, 3};\nint elementToInsert = 4;\nint insertionPoint = 0;\n\nwhile (insertionPoint < originalArray.length && originalArray[insertionPoint] < elementToInsert) {\n    insertionPoint++;\n}\n\nint[] newArray = new int[originalArray.length + 1];\nfor (int i = 0; i < insertionPoint; i++) {\n    newArray[i] = originalArray[i];\n}\nnewArray[insertionPoint] = elementToInsert;\nfor (int i = insertionPoint + 1; i < newArray.length; i++) {\n    newArray[i] = originalArray[i - 1];\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
3. \u4f7f\u7528ArrayList<\/strong><\/p>\n
ArrayList \u662f Java \u4e2d\u53ef\u53d8\u957f\u5ea6\u7684\u6570\u7ec4\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u6dfb\u52a0\u548c\u5220\u9664\u5143\u7d20\u3002\u5982\u679c\u60a8\u9700\u8981\u7ecf\u5e38\u63d2\u5165\u6216\u5220\u9664\u5143\u7d20\uff0c\u5219 ArrayList \u662f\u4e00\u4e2a\u66f4\u597d\u7684\u9009\u62e9\u3002<\/p>\n
ArrayList<Integer> originalList = new ArrayList<>();\noriginalList.add(1);\noriginalList.add(2);\noriginalList.add(3);\noriginalList.add(3, 4);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u600e\u4e48\u63d2\u5165\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":"
\u5728 java \u4e2d\uff0c\u53ef\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5411\u6570\u7ec4\u63d2\u5165\u5143\u7d20\uff1a\u4f7f\u7528 arrays.copyof() \u65b9\u6cd5\uff1a\u521b\u5efa\u5305\u542b\u539f\u6570\u7ec4\u53ca\u9644\u52a0\u5143\u7d20\u7684\u65b0\u6570\u7ec4\u3002\u4f7f\u7528\u63d2\u5165\u6392\u5e8f\uff1a\u627e\u5230\u65b0\u5143\u7d20\u7684\u63d2\u5165\u4f4d\u7f6e\u5e76\u5c06\u5176\u63d2\u5165\u3002\u4f7f\u7528 arraylist\uff1a\u53ef\u53d8\u957f\u5ea6\u6570\u7ec4\uff0c\u53ef\u65b9\u4fbf\u6dfb\u52a0\u548c\u5220\u9664\u5143\u7d20\u3002 \u5982\u4f55\u5728 Java \u4e2d\u5411\u6570\u7ec4\u63d2\u5165\u5143\u7d20 \u5728 Java \u4e2d\uff0c\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u5411\u6570\u7ec4\u4e2d\u63d2\u5165\u5143\u7d20\uff1a 1. \u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5 \u6b64\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u8be5\u6570\u7ec4\u5305\u542b\u539f\u59cb\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u4ee5\u53ca\u9644\u52a0\u5143\u7d20\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] originalArray = {1, 2, 3}; int[] newArray = Arrays.copyOf(originalArray, originalArray.length + 1); newArray[3] = 4; \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528\u63d2\u5165\u6392\u5e8f \u6b64\u7b97\u6cd5\u5728\u6570\u7ec4\u4e2d\u4e3a\u65b0\u5143\u7d20\u627e\u5230\u5408\u9002\u7684\u63d2\u5165\u4f4d\u7f6e\uff0c\u5e76\u5c06\u5176\u63d2\u5165\u5230\u8be5\u4f4d\u7f6e\u3002 int[] originalArray = {1, 2, 3}; int elementToInsert = 4; int insertionPoint = 0; while (insertionPoint < […]<\/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-36747","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36747","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=36747"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36747\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=36747"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=36747"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=36747"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}