{"id":64541,"date":"2025-05-03T09:22:00","date_gmt":"2025-05-03T01:22:00","guid":{"rendered":"https:\/\/fwq.ai\/blog\/64541\/"},"modified":"2025-05-03T09:22:00","modified_gmt":"2025-05-03T01:22:00","slug":"java%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e5%a2%9e%e5%8a%a0%e9%95%bf%e5%ba%a6-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/64541\/","title":{"rendered":"java\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u589e\u52a0\u957f\u5ea6"},"content":{"rendered":"<blockquote><p>\n  java \u4e8c\u7ef4\u6570\u7ec4\u65e0\u6cd5\u76f4\u63a5\u589e\u52a0\u957f\u5ea6\uff0c\u56e0\u4e3a\u5176\u957f\u5ea6\u5728\u521b\u5efa\u65f6\u56fa\u5b9a\u3002\u66ff\u4ee3\u65b9\u6cd5\u5305\u62ec\uff1a1. \u91cd\u65b0\u5206\u914d\u65b0\u6570\u7ec4\uff1b2. \u4f7f\u7528 arraylist \u5b58\u50a8\u5143\u7d20\uff1b3. \u7f16\u5199\u81ea\u5b9a\u4e49\u7c7b\u5b9e\u73b0\u52a8\u6001\u8c03\u6574\u5927\u5c0f\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/04\/2024110400182859202.jpg\" class=\"aligncenter\" title=\"java\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u589e\u52a0\u957f\u5ea6\u63d2\u56fe\" alt=\"java\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u589e\u52a0\u957f\u5ea6\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u4e8c\u7ef4\u6570\u7ec4\u5982\u4f55\u589e\u52a0\u957f\u5ea6<\/strong><\/p>\n<p><strong>\u56de\u7b54\uff1a<\/strong><\/p>\n<p>\u65e0\u6cd5\u76f4\u63a5\u589e\u52a0 Java \u4e8c\u7ef4\u6570\u7ec4\u7684\u957f\u5ea6\u3002<\/p>\n<p><strong>\u8be6\u7ec6\u89e3\u91ca\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>Java \u4e2d\u7684\u6570\u7ec4\u957f\u5ea6\u662f\u5728\u521b\u5efa\u65f6\u6307\u5b9a\u7684\uff0c\u5e76\u4e14\u5728\u521b\u5efa\u540e\u65e0\u6cd5\u66f4\u6539\u3002\u56e0\u6b64\uff0c\u65e0\u6cd5\u52a8\u6001\u5730\u589e\u52a0\u6216\u51cf\u5c11\u4e8c\u7ef4\u6570\u7ec4\u7684\u957f\u5ea6\u3002<\/p>\n<p><strong>\u66ff\u4ee3\u65b9\u6cd5\uff1a<\/strong><\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u6269\u5927\u4e8c\u7ef4\u6570\u7ec4\uff0c\u53ef\u4ee5\u8003\u8651\u4ee5\u4e0b\u66ff\u4ee3\u65b9\u6cd5\uff1a<\/p>\n<ul>\n<li> <strong>\u91cd\u65b0\u5206\u914d\u65b0\u6570\u7ec4\uff1a<\/strong>\u521b\u5efa\u65b0\u6570\u7ec4\uff0c\u957f\u5ea6\u6bd4\u73b0\u6709\u6570\u7ec4\u66f4\u5927\uff0c\u7136\u540e\u5c06\u73b0\u6709\u6570\u7ec4\u5143\u7d20\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d\u3002<\/li>\n<li> <strong>\u4f7f\u7528 ArrayList\uff1a<\/strong>\u4f7f\u7528 ArrayList \u5b58\u50a8\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002ArrayList \u662f\u52a8\u6001\u53ef\u8c03\u6574\u5927\u5c0f\u7684\u5217\u8868\uff0c\u53ef\u4ee5\u6dfb\u52a0\u548c\u5220\u9664\u5143\u7d20\u3002<\/li>\n<li> <strong>\u4f7f\u7528\u81ea\u5b9a\u4e49\u7c7b\uff1a<\/strong>\u7f16\u5199\u81ea\u5df1\u7684\u7c7b\u6765\u6a21\u62df\u4e8c\u7ef4\u6570\u7ec4\uff0c\u5e76\u63d0\u4f9b\u52a8\u6001\u8c03\u6574\u5927\u5c0f\u7684\u65b9\u6cd5\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<p><strong>\u4f7f\u7528 ArrayList\uff1a<\/strong><\/p>\n<pre>import java.util.ArrayList;\n\npublic class Main {\n    public static void main(String[] args) {\n        \/\/ \u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\n        int[][] array = {{1, 2}, {3, 4}};\n\n        \/\/ \u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a ArrayList\n        ArrayList&lt;ArrayList&lt;Integer&gt;&gt; arrayList = new ArrayList&lt;&gt;();\n        for (int[] row : array) {\n            arrayList.add(new ArrayList&lt;&gt;(Arrays.asList(row)));\n        }\n\n        \/\/ \u589e\u52a0 ArrayList \u7684\u884c\u6570\n        arrayList.add(new ArrayList&lt;&gt;(Arrays.asList(5, 6)));\n\n        \/\/ \u5c06 ArrayList \u8f6c\u6362\u4e3a\u6570\u7ec4\n        int[][] newArray = new int[arrayList.size()][];\n        for (int i = 0; i &lt; arrayList.size(); i++) {\n            newArray[i] = arrayList.get(i).stream().mapToInt(Integer::intValue).toArray();\n        }\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u589e\u52a0\u957f\u5ea6\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>java \u4e8c\u7ef4\u6570\u7ec4\u65e0\u6cd5\u76f4\u63a5\u589e\u52a0\u957f\u5ea6\uff0c\u56e0\u4e3a\u5176\u957f\u5ea6\u5728\u521b\u5efa\u65f6\u56fa\u5b9a\u3002\u66ff\u4ee3\u65b9\u6cd5\u5305\u62ec\uff1a1. \u91cd\u65b0\u5206\u914d\u65b0\u6570\u7ec4\uff1b2. \u4f7f\u7528 arraylist \u5b58\u50a8\u5143\u7d20\uff1b3. \u7f16\u5199\u81ea\u5b9a\u4e49\u7c7b\u5b9e\u73b0\u52a8\u6001\u8c03\u6574\u5927\u5c0f\u3002 Java \u4e8c\u7ef4\u6570\u7ec4\u5982\u4f55\u589e\u52a0\u957f\u5ea6 \u56de\u7b54\uff1a \u65e0\u6cd5\u76f4\u63a5\u589e\u52a0 Java \u4e8c\u7ef4\u6570\u7ec4\u7684\u957f\u5ea6\u3002 \u8be6\u7ec6\u89e3\u91ca\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b Java \u4e2d\u7684\u6570\u7ec4\u957f\u5ea6\u662f\u5728\u521b\u5efa\u65f6\u6307\u5b9a\u7684\uff0c\u5e76\u4e14\u5728\u521b\u5efa\u540e\u65e0\u6cd5\u66f4\u6539\u3002\u56e0\u6b64\uff0c\u65e0\u6cd5\u52a8\u6001\u5730\u589e\u52a0\u6216\u51cf\u5c11\u4e8c\u7ef4\u6570\u7ec4\u7684\u957f\u5ea6\u3002 \u66ff\u4ee3\u65b9\u6cd5\uff1a \u5982\u679c\u60a8\u9700\u8981\u6269\u5927\u4e8c\u7ef4\u6570\u7ec4\uff0c\u53ef\u4ee5\u8003\u8651\u4ee5\u4e0b\u66ff\u4ee3\u65b9\u6cd5\uff1a \u91cd\u65b0\u5206\u914d\u65b0\u6570\u7ec4\uff1a\u521b\u5efa\u65b0\u6570\u7ec4\uff0c\u957f\u5ea6\u6bd4\u73b0\u6709\u6570\u7ec4\u66f4\u5927\uff0c\u7136\u540e\u5c06\u73b0\u6709\u6570\u7ec4\u5143\u7d20\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d\u3002 \u4f7f\u7528 ArrayList\uff1a\u4f7f\u7528 ArrayList \u5b58\u50a8\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002ArrayList \u662f\u52a8\u6001\u53ef\u8c03\u6574\u5927\u5c0f\u7684\u5217\u8868\uff0c\u53ef\u4ee5\u6dfb\u52a0\u548c\u5220\u9664\u5143\u7d20\u3002 \u4f7f\u7528\u81ea\u5b9a\u4e49\u7c7b\uff1a\u7f16\u5199\u81ea\u5df1\u7684\u7c7b\u6765\u6a21\u62df\u4e8c\u7ef4\u6570\u7ec4\uff0c\u5e76\u63d0\u4f9b\u52a8\u6001\u8c03\u6574\u5927\u5c0f\u7684\u65b9\u6cd5\u3002 \u793a\u4f8b\uff1a \u4f7f\u7528 ArrayList\uff1a import java.util.ArrayList; public class Main { public static void main(String[] args) { \/\/ \u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4 int[][] array = {{1, 2}, {3, 4}}; \/\/ \u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a ArrayList ArrayList&lt;ArrayList&lt;Integer&gt;&gt; arrayList [&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-64541","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64541","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=64541"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64541\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=64541"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=64541"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=64541"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}