{"id":34905,"date":"2024-11-26T14:01:33","date_gmt":"2024-11-26T06:01:33","guid":{"rendered":"https:\/\/fwq.ai\/blog\/34905\/"},"modified":"2024-11-26T14:01:33","modified_gmt":"2024-11-26T06:01:33","slug":"java%e6%95%b0%e7%bb%84%e7%9a%84%e9%9b%86%e5%90%88%e6%80%8e%e4%b9%88%e5%a2%9e%e5%8a%a0%e6%95%b0%e6%8d%ae","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/34905\/","title":{"rendered":"java\u6570\u7ec4\u7684\u96c6\u5408\u600e\u4e48\u589e\u52a0\u6570\u636e"},"content":{"rendered":"<blockquote><p>\n  \u5411 java \u6570\u7ec4\u96c6\u5408\u4e2d\u6dfb\u52a0\u6570\u636e\u53ef\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u5b8c\u6210\uff1a\u521d\u59cb\u5316\u6570\u7ec4\u96c6\u5408\uff1aarraylist arraylist = new arraylist()\u4f7f\u7528 add() \u65b9\u6cd5\uff1aarraylist.add(\u6570\u636e)\u4f7f\u7528 addall() \u65b9\u6cd5\uff1aarraylist.addall(\u53e6\u4e00\u4e2a\u96c6\u5408\u6216\u6570\u7ec4)\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/03\/2024110305365493410.jpg\" class=\"aligncenter\" title=\"java\u6570\u7ec4\u7684\u96c6\u5408\u600e\u4e48\u589e\u52a0\u6570\u636e\u63d2\u56fe\" alt=\"java\u6570\u7ec4\u7684\u96c6\u5408\u600e\u4e48\u589e\u52a0\u6570\u636e\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5411 Java \u6570\u7ec4\u96c6\u5408\u4e2d\u6dfb\u52a0\u6570\u636e<\/strong><\/p>\n<p>Java \u6570\u7ec4\u96c6\u5408\u662f\u5b58\u50a8\u5143\u7d20\u7684\u6709\u5e8f\u96c6\u5408\uff0c\u5b83\u5141\u8bb8\u91cd\u590d\u5143\u7d20\u3002\u8981\u5411 Java \u6570\u7ec4\u96c6\u5408\u4e2d\u6dfb\u52a0\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n<p><strong>1. \u521d\u59cb\u5316\u4e00\u4e2a\u6570\u7ec4\u96c6\u5408<\/strong><\/p>\n<p>\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\u96c6\u5408\u5bf9\u8c61\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>ArrayList&lt;\u6570\u636e\u7c7b\u578b&gt; arrayList = new ArrayList&lt;&gt;();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d \u66ff\u6362\u4e3a\u8981\u5b58\u50a8\u5728\u6570\u7ec4\u96c6\u5408\u4e2d\u7684\u6570\u636e\u7c7b\u578b\u3002<\/p>\n<p><strong>2. \u4f7f\u7528 add() \u65b9\u6cd5<\/strong><\/p>\n<p>\u8981\u5411\u6570\u7ec4\u96c6\u5408\u6dfb\u52a0\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528 add() \u65b9\u6cd5\uff1a<\/p>\n<pre>arrayList.add(\u6570\u636e);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d \u6570\u636e \u662f\u8981\u6dfb\u52a0\u5230\u6570\u7ec4\u96c6\u5408\u4e2d\u7684\u6570\u636e\u9879\u3002<\/p>\n<p><strong>3. \u4f7f\u7528 addAll() \u65b9\u6cd5<\/strong><\/p>\n<p>\u5982\u679c\u8981\u4ece\u53e6\u4e00\u4e2a\u96c6\u5408\u6216\u6570\u7ec4\u5411\u6570\u7ec4\u96c6\u5408\u4e2d\u6dfb\u52a0\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528 addAll() \u65b9\u6cd5\uff1a<\/p>\n<pre>arrayList.addAll(\u53e6\u4e00\u4e2a\u96c6\u5408\u6216\u6570\u7ec4);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n<pre>ArrayList&lt;String&gt; names = new ArrayList&lt;&gt;();\n\n\/\/ \u4f7f\u7528 add() \u65b9\u6cd5\u6dfb\u52a0\u6570\u636e\nnames.add(\"John\");\nnames.add(\"Mary\");\nnames.add(\"Bob\");\n\n\/\/ \u4f7f\u7528 addAll() \u65b9\u6cd5\u6dfb\u52a0\u6570\u636e\nString[] moreNames = {\"Alice\", \"Tom\", \"Susan\"};\nnames.addAll(Arrays.asList(moreNames));\n\n\/\/ \u6253\u5370\u6570\u7ec4\u96c6\u5408\nSystem.out.println(names);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre>[John, Mary, Bob, Alice, Tom, Susan]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u7684\u96c6\u5408\u600e\u4e48\u589e\u52a0\u6570\u636e\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>\u5411 java \u6570\u7ec4\u96c6\u5408\u4e2d\u6dfb\u52a0\u6570\u636e\u53ef\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u5b8c\u6210\uff1a\u521d\u59cb\u5316\u6570\u7ec4\u96c6\u5408\uff1aarraylist arraylist = new arraylist()\u4f7f\u7528 add() \u65b9\u6cd5\uff1aarraylist.add(\u6570\u636e)\u4f7f\u7528 addall() \u65b9\u6cd5\uff1aarraylist.addall(\u53e6\u4e00\u4e2a\u96c6\u5408\u6216\u6570\u7ec4) \u5982\u4f55\u5411 Java \u6570\u7ec4\u96c6\u5408\u4e2d\u6dfb\u52a0\u6570\u636e Java \u6570\u7ec4\u96c6\u5408\u662f\u5b58\u50a8\u5143\u7d20\u7684\u6709\u5e8f\u96c6\u5408\uff0c\u5b83\u5141\u8bb8\u91cd\u590d\u5143\u7d20\u3002\u8981\u5411 Java \u6570\u7ec4\u96c6\u5408\u4e2d\u6dfb\u52a0\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a 1. \u521d\u59cb\u5316\u4e00\u4e2a\u6570\u7ec4\u96c6\u5408 \u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\u96c6\u5408\u5bf9\u8c61\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b ArrayList&lt;\u6570\u636e\u7c7b\u578b&gt; arrayList = new ArrayList&lt;&gt;(); \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d \u66ff\u6362\u4e3a\u8981\u5b58\u50a8\u5728\u6570\u7ec4\u96c6\u5408\u4e2d\u7684\u6570\u636e\u7c7b\u578b\u3002 2. \u4f7f\u7528 add() \u65b9\u6cd5 \u8981\u5411\u6570\u7ec4\u96c6\u5408\u6dfb\u52a0\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528 add() \u65b9\u6cd5\uff1a arrayList.add(\u6570\u636e); \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d \u6570\u636e \u662f\u8981\u6dfb\u52a0\u5230\u6570\u7ec4\u96c6\u5408\u4e2d\u7684\u6570\u636e\u9879\u3002 3. \u4f7f\u7528 addAll() \u65b9\u6cd5 \u5982\u679c\u8981\u4ece\u53e6\u4e00\u4e2a\u96c6\u5408\u6216\u6570\u7ec4\u5411\u6570\u7ec4\u96c6\u5408\u4e2d\u6dfb\u52a0\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528 addAll() \u65b9\u6cd5\uff1a arrayList.addAll(\u53e6\u4e00\u4e2a\u96c6\u5408\u6216\u6570\u7ec4); \u767b\u5f55\u540e\u590d\u5236 \u793a\u4f8b ArrayList&lt;String&gt; names = [&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-34905","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34905","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=34905"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34905\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=34905"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=34905"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=34905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}