{"id":35965,"date":"2024-11-26T12:53:57","date_gmt":"2024-11-26T04:53:57","guid":{"rendered":"https:\/\/fwq.ai\/blog\/35965\/"},"modified":"2024-11-26T12:53:57","modified_gmt":"2024-11-26T04:53:57","slug":"linkedlist-%e7%9a%84-addall-%e6%96%b9%e6%b3%95%e6%98%af%e5%a6%82%e4%bd%95%e7%a1%ae%e5%ae%9a%e5%90%8e%e7%bb%a7%e8%8a%82%e7%82%b9%e4%b8%ba-null-%e7%9a%84%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/35965\/","title":{"rendered":"LinkedList \u7684 addAll \u65b9\u6cd5\u662f\u5982\u4f55\u786e\u5b9a\u540e\u7ee7\u8282\u70b9\u4e3a null \u7684\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173085554582783.jpg\" class=\"aligncenter\" title=\"LinkedList \u7684 addAll \u65b9\u6cd5\u662f\u5982\u4f55\u786e\u5b9a\u540e\u7ee7\u8282\u70b9\u4e3a null \u7684\uff1f\u63d2\u56fe\" alt=\"LinkedList \u7684 addAll \u65b9\u6cd5\u662f\u5982\u4f55\u786e\u5b9a\u540e\u7ee7\u8282\u70b9\u4e3a null \u7684\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>LinkedList\u4e4baddAll(int index, Collection extends E&gt; c)\u65b9\u6cd5<\/strong><\/p>\n<p>\u8be5\u65b9\u6cd5\u7528\u4e8e\u5728\u6307\u5b9a\u7d22\u5f15index\u5904\u5411\u94fe\u8868\u4e2d\u6279\u91cf\u6dfb\u52a0\u5143\u7d20\u3002<\/p>\n<p><strong>\u662f\u5982\u4f55\u786e\u5b9a\u540e\u7ee7\u8282\u70b9\u4e3anull\u7684\uff1f<\/strong><\/p>\n<p>Node  newNode = new Node  (pred, e, null)\u4e2d\u7684\u7b2c\u4e09\u4e2a\u53c2\u6570\u4e3anull\uff0c\u8868\u793a\u65b0\u5efa\u8282\u70b9\u7684\u540e\u7ee7\u8282\u70b9\u4e3anull\u3002\u8fd9\u662f\u56e0\u4e3a\u5728\u904d\u5386\u6dfb\u52a0\u5143\u7d20\u7684\u8fc7\u7a0b\u4e2d\uff0c\u9700\u8981\u5728\u6bcf\u6b21\u5faa\u73af\u4e2d\u63d2\u5165\u4e00\u4e2a\u65b0\u8282\u70b9\uff0c\u800c\u65b0\u8282\u70b9\u7684\u540e\u7ee7\u8282\u70b9\u53ea\u6709\u5728\u63d2\u5165\u94fe\u8868\u672b\u5c3e\u65f6\u624d\u4e3anull\u3002  <\/p>\n<p><strong>\u662f\u5426\u53ef\u4ee5\u4f7f\u7528\u81ea\u5b9a\u4e49\u6784\u9020\u51fd\u6570\uff1f<\/strong><\/p>\n<p>addAll\u65b9\u6cd5\u662fLinkedList\u7c7b\u7684\u516c\u5171\u65b9\u6cd5\uff0c\u60a8\u53ef\u4ee5\u76f4\u63a5\u8c03\u7528\u5b83\u3002\u5b83\u5185\u90e8\u4f7f\u7528Node\u7c7b\u7684\u65e0\u53c2\u6784\u9020\u51fd\u6570\u521b\u5efa\u65b0\u8282\u70b9\u3002\u5982\u679c\u60a8\u5c1d\u8bd5\u4f7f\u7528\u81ea\u5b9a\u4e49\u6784\u9020\u51fd\u6570\u521b\u5efa\u65b0\u8282\u70b9\uff0c\u5c06\u629b\u51faUnsupportedOperationException\u5f02\u5e38\u3002<\/p>\n<p><strong>\u8c03\u7528addAll\u65f6\u9700\u8981\u8003\u8651\u7684\u95ee\u9898<\/strong><\/p>\n<p>\u5f53\u60a8\u4f20\u5165\u4e00\u4e2a\u4e0d\u5728\u94fe\u8868\u672b\u5c3e\u63d2\u5165\u7684\u96c6\u5408\u65f6\uff0c\u786e\u5b9e\u5b58\u5728\u94fe\u8868\u540e\u9762\u6570\u636e\u88ab\u8986\u76d6\u7684\u98ce\u9669\u3002\u8fd9\u662f\u56e0\u4e3aaddAll\u65b9\u6cd5\u4f1a\u76f4\u63a5\u63d2\u5165\u96c6\u5408\u4e2d\u7684\u6240\u6709\u5143\u7d20\uff0c\u800c\u4e0d\u4f1a\u8c03\u6574\u94fe\u8868\u7684\u73b0\u6709\u8282\u70b9\u3002\u56e0\u6b64\uff0c\u5728\u8c03\u7528addAll\u65b9\u6cd5\u4e4b\u524d\uff0c\u60a8\u9700\u8981\u786e\u4fdd\u4f20\u5165\u7684\u96c6\u5408\u4e0e\u8981\u63d2\u5165\u7684\u7d22\u5f15\u4f4d\u7f6e\u76f8\u5339\u914d\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fLinkedList \u7684 addAll \u65b9\u6cd5\u662f\u5982\u4f55\u786e\u5b9a\u540e\u7ee7\u8282\u70b9\u4e3a null \u7684\uff1f\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>LinkedList\u4e4baddAll(int index, Collection extends E&gt; c)\u65b9\u6cd5 \u8be5\u65b9\u6cd5\u7528\u4e8e\u5728\u6307\u5b9a\u7d22\u5f15index\u5904\u5411\u94fe\u8868\u4e2d\u6279\u91cf\u6dfb\u52a0\u5143\u7d20\u3002 \u662f\u5982\u4f55\u786e\u5b9a\u540e\u7ee7\u8282\u70b9\u4e3anull\u7684\uff1f Node newNode = new Node (pred, e, null)\u4e2d\u7684\u7b2c\u4e09\u4e2a\u53c2\u6570\u4e3anull\uff0c\u8868\u793a\u65b0\u5efa\u8282\u70b9\u7684\u540e\u7ee7\u8282\u70b9\u4e3anull\u3002\u8fd9\u662f\u56e0\u4e3a\u5728\u904d\u5386\u6dfb\u52a0\u5143\u7d20\u7684\u8fc7\u7a0b\u4e2d\uff0c\u9700\u8981\u5728\u6bcf\u6b21\u5faa\u73af\u4e2d\u63d2\u5165\u4e00\u4e2a\u65b0\u8282\u70b9\uff0c\u800c\u65b0\u8282\u70b9\u7684\u540e\u7ee7\u8282\u70b9\u53ea\u6709\u5728\u63d2\u5165\u94fe\u8868\u672b\u5c3e\u65f6\u624d\u4e3anull\u3002 \u662f\u5426\u53ef\u4ee5\u4f7f\u7528\u81ea\u5b9a\u4e49\u6784\u9020\u51fd\u6570\uff1f addAll\u65b9\u6cd5\u662fLinkedList\u7c7b\u7684\u516c\u5171\u65b9\u6cd5\uff0c\u60a8\u53ef\u4ee5\u76f4\u63a5\u8c03\u7528\u5b83\u3002\u5b83\u5185\u90e8\u4f7f\u7528Node\u7c7b\u7684\u65e0\u53c2\u6784\u9020\u51fd\u6570\u521b\u5efa\u65b0\u8282\u70b9\u3002\u5982\u679c\u60a8\u5c1d\u8bd5\u4f7f\u7528\u81ea\u5b9a\u4e49\u6784\u9020\u51fd\u6570\u521b\u5efa\u65b0\u8282\u70b9\uff0c\u5c06\u629b\u51faUnsupportedOperationException\u5f02\u5e38\u3002 \u8c03\u7528addAll\u65f6\u9700\u8981\u8003\u8651\u7684\u95ee\u9898 \u5f53\u60a8\u4f20\u5165\u4e00\u4e2a\u4e0d\u5728\u94fe\u8868\u672b\u5c3e\u63d2\u5165\u7684\u96c6\u5408\u65f6\uff0c\u786e\u5b9e\u5b58\u5728\u94fe\u8868\u540e\u9762\u6570\u636e\u88ab\u8986\u76d6\u7684\u98ce\u9669\u3002\u8fd9\u662f\u56e0\u4e3aaddAll\u65b9\u6cd5\u4f1a\u76f4\u63a5\u63d2\u5165\u96c6\u5408\u4e2d\u7684\u6240\u6709\u5143\u7d20\uff0c\u800c\u4e0d\u4f1a\u8c03\u6574\u94fe\u8868\u7684\u73b0\u6709\u8282\u70b9\u3002\u56e0\u6b64\uff0c\u5728\u8c03\u7528addAll\u65b9\u6cd5\u4e4b\u524d\uff0c\u60a8\u9700\u8981\u786e\u4fdd\u4f20\u5165\u7684\u96c6\u5408\u4e0e\u8981\u63d2\u5165\u7684\u7d22\u5f15\u4f4d\u7f6e\u76f8\u5339\u914d\u3002 \u4ee5\u4e0a\u5c31\u662fLinkedList \u7684 addAll \u65b9\u6cd5\u662f\u5982\u4f55\u786e\u5b9a\u540e\u7ee7\u8282\u70b9\u4e3a null \u7684\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\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-35965","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35965","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=35965"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35965\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=35965"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=35965"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=35965"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}