{"id":40075,"date":"2024-11-26T09:03:45","date_gmt":"2024-11-26T01:03:45","guid":{"rendered":"https:\/\/fwq.ai\/blog\/40075\/"},"modified":"2024-11-26T09:03:45","modified_gmt":"2024-11-26T01:03:45","slug":"java%e4%b8%ad%e9%9a%8f%e6%9c%ba%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e5%81%9a","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/40075\/","title":{"rendered":"Java\u4e2d\u968f\u673a\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u505a"},"content":{"rendered":"<blockquote><p>\n  \u5982\u4f55\u521b\u5efa java \u4e2d\u7684\u968f\u673a\u4e8c\u7ef4\u6570\u7ec4\uff1f\u521b\u5efa\u968f\u673a\u4e8c\u7ef4\u6570\u7ec4\u7684\u65b9\u6cd5\u5982\u4e0b\uff1a\u786e\u5b9a\u6570\u7ec4\u5927\u5c0f\u3002\u521b\u5efa\u4e00\u4e2a\u5916\u5c42\u6570\u7ec4\u3002\u4e3a\u5916\u5c42\u6570\u7ec4\u7684\u6bcf\u4e00\u884c\u521b\u5efa\u4e00\u4e2a\u5185\u5c42\u6570\u7ec4\u3002\u4f7f\u7528\u968f\u673a\u6570\u751f\u6210\u5668\u586b\u5145\u6570\u7ec4\u3002\u901a\u8fc7\u8fd9\u4e9b\u6b65\u9aa4\uff0c\u60a8\u53ef\u4ee5\u521b\u5efa\u5177\u6709\u6307\u5b9a\u5927\u5c0f\u548c\u968f\u673a\u503c\u7684\u4e8c\u7ef4\u6570\u7ec4\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/17\/2024111719392186599.jpg\" class=\"aligncenter\" title=\"Java\u4e2d\u968f\u673a\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u505a\u63d2\u56fe\" alt=\"Java\u4e2d\u968f\u673a\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u505a\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u521b\u5efa Java \u4e2d\u7684\u968f\u673a\u4e8c\u7ef4\u6570\u7ec4<\/strong><\/p>\n<p><strong>\u5f00\u95e8\u89c1\u5c71\uff1a<\/strong><\/p>\n<p>\u4f7f\u7528 Java \u521b\u5efa\u968f\u673a\u4e8c\u7ef4\u6570\u7ec4\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5b9e\u73b0\uff1a<\/p>\n<p><strong>\u8be6\u7ec6\u6b65\u9aa4\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ol>\n<li> <strong>\u786e\u5b9a\u6570\u7ec4\u5927\u5c0f\uff1a<\/strong>\u9996\u5148\uff0c\u786e\u5b9a\u60a8\u60f3\u8981\u7684\u4e8c\u7ef4\u6570\u7ec4\u7684\u884c\u6570\u548c\u5217\u6570\u3002<\/li>\n<li> <strong>\u521b\u5efa\u5916\u5c42\u6570\u7ec4\uff1a<\/strong>\u4f7f\u7528 int[][] outerArray = new intnumRows; \u521b\u5efa\u4e00\u4e2a\u5916\u5c42\u6570\u7ec4\uff0c\u5176\u4e2d numRows \u548c numCols \u5206\u522b\u662f\u884c\u6570\u548c\u5217\u6570\u3002<\/li>\n<li> <strong>\u521b\u5efa\u5185\u5c42\u6570\u7ec4\uff1a<\/strong>\u5bf9\u4e8e\u5916\u5c42\u6570\u7ec4\u7684\u6bcf\u4e00\u884c\uff0c\u4f7f\u7528 int[] innerArray = new int[numCols]; \u521b\u5efa\u4e00\u4e2a\u5185\u5c42\u6570\u7ec4\uff0c\u5176\u4e2d numCols \u662f\u5217\u6570\u3002<\/li>\n<li> <strong>\u586b\u5145\u6570\u7ec4\uff1a<\/strong>\u4f7f\u7528\u4e00\u4e2a\u5faa\u73af\u4ece 0 \u586b\u5145\u5230 outerArray.length-1\uff0c\u5e76\u5728\u5faa\u73af\u4f53\u5185\u4f7f\u7528\u53e6\u4e00\u4e2a\u5faa\u73af\u4ece 0 \u586b\u5145\u5230 outerArray[i].length-1\u3002\u5728\u8fd9\u4e9b\u5faa\u73af\u4e2d\uff0c\u4f7f\u7528 Math.random() * max + min \u751f\u6210\u968f\u673a\u6570\u5e76\u5c06\u5176\u5b58\u50a8\u5728\u6570\u7ec4\u5143\u7d20\u4e2d\uff0c\u5176\u4e2d max \u548c min \u662f\u968f\u673a\u6570\u7684\u8303\u56f4\u3002<\/li>\n<\/ol>\n<p><strong>\u793a\u4f8b\u4ee3\u7801\uff1a<\/strong><\/p>\n<pre>import java.util.Random;\n\npublic class Random2DArray {\n\n    public static void main(String[] args) {\n        \/\/ \u8bbe\u7f6e\u6570\u7ec4\u5927\u5c0f\n        int numRows = 5;\n        int numCols = 3;\n\n        \/\/ \u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\n        int[][] randomArray = new int[numRows][numCols];\n\n        \/\/ \u586b\u5145\u6570\u7ec4\n        Random random = new Random();\n        for (int i = 0; i &lt; randomArray.length; i++) {\n            for (int j = 0; j &lt; randomArray[i].length; j++) {\n                randomArray[i][j] = random.nextInt(100); \/\/ \u751f\u6210 0-99 \u4e4b\u95f4\u7684\u968f\u673a\u6570\n            }\n        }\n\n        \/\/ \u6253\u5370\u6570\u7ec4\n        for (int[] row : randomArray) {\n            for (int element : row) {\n                System.out.print(element + \" \");\n            }\n            System.out.println();\n        }\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u8f93\u51fa\uff1a<\/strong><\/p>\n<pre>23 78 15\n92 54 67\n34 96 29\n74 13 82\n60 76 45<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u901a\u8fc7\u8fd9\u79cd\u65b9\u6cd5\uff0c\u60a8\u53ef\u4ee5\u521b\u5efa\u5177\u6709\u4efb\u610f\u5927\u5c0f\u548c\u968f\u673a\u503c\u7684 Java \u4e8c\u7ef4\u6570\u7ec4\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fJava\u4e2d\u968f\u673a\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u505a\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>\u5982\u4f55\u521b\u5efa java \u4e2d\u7684\u968f\u673a\u4e8c\u7ef4\u6570\u7ec4\uff1f\u521b\u5efa\u968f\u673a\u4e8c\u7ef4\u6570\u7ec4\u7684\u65b9\u6cd5\u5982\u4e0b\uff1a\u786e\u5b9a\u6570\u7ec4\u5927\u5c0f\u3002\u521b\u5efa\u4e00\u4e2a\u5916\u5c42\u6570\u7ec4\u3002\u4e3a\u5916\u5c42\u6570\u7ec4\u7684\u6bcf\u4e00\u884c\u521b\u5efa\u4e00\u4e2a\u5185\u5c42\u6570\u7ec4\u3002\u4f7f\u7528\u968f\u673a\u6570\u751f\u6210\u5668\u586b\u5145\u6570\u7ec4\u3002\u901a\u8fc7\u8fd9\u4e9b\u6b65\u9aa4\uff0c\u60a8\u53ef\u4ee5\u521b\u5efa\u5177\u6709\u6307\u5b9a\u5927\u5c0f\u548c\u968f\u673a\u503c\u7684\u4e8c\u7ef4\u6570\u7ec4\u3002 \u5982\u4f55\u521b\u5efa Java \u4e2d\u7684\u968f\u673a\u4e8c\u7ef4\u6570\u7ec4 \u5f00\u95e8\u89c1\u5c71\uff1a \u4f7f\u7528 Java \u521b\u5efa\u968f\u673a\u4e8c\u7ef4\u6570\u7ec4\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5b9e\u73b0\uff1a \u8be6\u7ec6\u6b65\u9aa4\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u786e\u5b9a\u6570\u7ec4\u5927\u5c0f\uff1a\u9996\u5148\uff0c\u786e\u5b9a\u60a8\u60f3\u8981\u7684\u4e8c\u7ef4\u6570\u7ec4\u7684\u884c\u6570\u548c\u5217\u6570\u3002 \u521b\u5efa\u5916\u5c42\u6570\u7ec4\uff1a\u4f7f\u7528 int[][] outerArray = new intnumRows; \u521b\u5efa\u4e00\u4e2a\u5916\u5c42\u6570\u7ec4\uff0c\u5176\u4e2d numRows \u548c numCols \u5206\u522b\u662f\u884c\u6570\u548c\u5217\u6570\u3002 \u521b\u5efa\u5185\u5c42\u6570\u7ec4\uff1a\u5bf9\u4e8e\u5916\u5c42\u6570\u7ec4\u7684\u6bcf\u4e00\u884c\uff0c\u4f7f\u7528 int[] innerArray = new int[numCols]; \u521b\u5efa\u4e00\u4e2a\u5185\u5c42\u6570\u7ec4\uff0c\u5176\u4e2d numCols \u662f\u5217\u6570\u3002 \u586b\u5145\u6570\u7ec4\uff1a\u4f7f\u7528\u4e00\u4e2a\u5faa\u73af\u4ece 0 \u586b\u5145\u5230 outerArray.length-1\uff0c\u5e76\u5728\u5faa\u73af\u4f53\u5185\u4f7f\u7528\u53e6\u4e00\u4e2a\u5faa\u73af\u4ece 0 \u586b\u5145\u5230 outerArray[i].length-1\u3002\u5728\u8fd9\u4e9b\u5faa\u73af\u4e2d\uff0c\u4f7f\u7528 Math.random() * max + min \u751f\u6210\u968f\u673a\u6570\u5e76\u5c06\u5176\u5b58\u50a8\u5728\u6570\u7ec4\u5143\u7d20\u4e2d\uff0c\u5176\u4e2d max \u548c min \u662f\u968f\u673a\u6570\u7684\u8303\u56f4\u3002 \u793a\u4f8b\u4ee3\u7801\uff1a import java.util.Random; public class [&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-40075","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/40075","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=40075"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/40075\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=40075"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=40075"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=40075"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}