{"id":889,"date":"2026-03-07T17:34:55","date_gmt":"2026-03-07T09:34:55","guid":{"rendered":"https:\/\/yunyanglib.cn\/?p=889"},"modified":"2026-03-07T17:34:55","modified_gmt":"2026-03-07T09:34:55","slug":"%e3%80%90java%e3%80%91%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%ef%bc%9a%e4%bb%8e%e5%9f%ba%e7%a1%80%e5%ae%9a%e4%b9%89%e5%88%b0%e6%9d%a8%e8%be%89%e4%b8%89%e8%a7%92%e5%ae%9e%e6%88%98","status":"publish","type":"post","link":"https:\/\/yunyanglib.cn\/?p=889","title":{"rendered":"\u3010Java\u3011\u4e8c\u7ef4\u6570\u7ec4\uff1a\u4ece\u57fa\u7840\u5b9a\u4e49\u5230\u6768\u8f89\u4e09\u89d2\u5b9e\u6218"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u4e00\u3001\u4ec0\u4e48\u662f\u4e8c\u7ef4\u6570\u7ec4\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e8c\u7ef4\u6570\u7ec4\u672c\u8d28\u662f\u300c\u6570\u7ec4\u7684\u6570\u7ec4\u300d\uff0c\u53ef\u4ee5\u7406\u89e3\u4e3a\u4e00\u4e2a\u8868\u683c\u6216\u77e9\u9635\uff0c\u901a\u8fc7\u300c\u884c\u7d22\u5f15 + \u5217\u7d22\u5f15\u300d\u5b9a\u4f4d\u5143\u7d20\uff0c\u975e\u5e38\u9002\u5408\u5b58\u50a8\u8868\u683c\u5316\u6570\u636e\uff08\u6bd4\u5982\u5b66\u751f\u6210\u7ee9\u8868\u3001\u77e9\u9635\u8fd0\u7b97\u3001\u56fe\u50cf\u50cf\u7d20\u6570\u636e\u7b49\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u76f4\u89c2\u793a\u4f8b<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u5b58\u50a83\u884c4\u5217\u7684\u5b57\u7b26\u6570\u636e\nchar&#91;]&#91;] letterArray = { \n    {'a', 'b', 'c', 'd'}, \n    {'e', 'f', 'g', 'h'}, \n    {'i', 'j', 'k', 'l'} \n};\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c31\u50cf Excel \u8868\u683c\u4e00\u6837\uff0c<code>letterArray[0][0]<\/code> \u5bf9\u5e94\u7b2c\u4e00\u884c\u7b2c\u4e00\u5217\u7684 &#8216;a&#8217;\uff0c<code>letterArray[2][3]<\/code> \u5bf9\u5e94\u7b2c\u4e09\u884c\u7b2c\u56db\u5217\u7684 &#8216;l&#8217;\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001Java \u4e8c\u7ef4\u6570\u7ec4\u7684\u521b\u5efa\u65b9\u5f0f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u9759\u6001\u521d\u59cb\u5316\uff08\u76f4\u63a5\u8d4b\u503c\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9002\u5408\u5df2\u77e5\u6240\u6709\u5143\u7d20\u7684\u573a\u666f\uff0c\u8bed\u6cd5\u7b80\u6d01\u76f4\u89c2\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u65b9\u5f0f1\uff1a\u5b8c\u6574\u8bed\u6cd5\nint&#91;]&#91;] oddNumbers = { {1, 3, 5, 7}, {9, 11, 13, 15}, {17, 19, 21, 23} };\n\n\/\/ \u65b9\u5f0f2\uff1a\u7b80\u5316\u5199\u6cd5\uff08\u63a8\u8350\uff09\nint&#91;]&#91;] evenNumbers = { {2,4}, {6,8}, {10,12} };\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u52a8\u6001\u521d\u59cb\u5316\uff08\u6307\u5b9a\u957f\u5ea6\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9002\u5408\u63d0\u524d\u77e5\u9053\u6570\u7ec4\u5927\u5c0f\uff0c\u4f46\u5143\u7d20\u540e\u7eed\u8d4b\u503c\u7684\u573a\u666f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u65b9\u5f0f1\uff1a\u6307\u5b9a\u884c\u6570\u548c\u5217\u6570\uff08\u6bcf\u884c\u5217\u6570\u76f8\u540c\uff09\nString&#91;]&#91;] studentScores = new String&#91;3]&#91;4]; \/\/ 3\u884c4\u5217\u7684\u5b57\u7b26\u4e32\u6570\u7ec4\nstudentScores&#91;0]&#91;0] = \"\u5f20\u4e09\";\nstudentScores&#91;0]&#91;1] = \"95\"; \/\/ \u5f20\u4e09\u7684\u6570\u5b66\u6210\u7ee9\nstudentScores&#91;0]&#91;2] = \"88\"; \/\/ \u5f20\u4e09\u7684\u8bed\u6587\u6210\u7ee9\nstudentScores&#91;0]&#91;3] = \"92\"; \/\/ \u5f20\u4e09\u7684\u82f1\u8bed\u6210\u7ee9\n\n\/\/ \u65b9\u5f0f2\uff1a\u4e0d\u89c4\u5219\u6570\u7ec4\uff08\u6bcf\u884c\u5217\u6570\u53ef\u4e0d\u540c\uff09\nint&#91;]&#91;] irregularArray = new int&#91;3]&#91;]; \/\/ \u53ea\u6307\u5b9a\u884c\u6570\uff0c\u4e0d\u6307\u5b9a\u5217\u6570\nirregularArray&#91;0] = new int&#91;2]; \/\/ \u7b2c1\u884c2\u5217\nirregularArray&#91;1] = new int&#91;3]; \/\/ \u7b2c2\u884c3\u5217\nirregularArray&#91;2] = new int&#91;1]; \/\/ \u7b2c3\u884c1\u5217\nirregularArray&#91;1]&#91;2] = 99; \/\/ \u8d4b\u503c\u7b2c2\u884c\u7b2c3\u5217\u5143\u7d20\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001\u5982\u4f55\u8bbf\u95ee\u4e8c\u7ef4\u6570\u7ec4\u7684\u5143\u7d20\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7\u300c\u884c\u7d22\u5f15 + \u5217\u7d22\u5f15\u300d\u8bbf\u95ee\uff0c<strong>\u7d22\u5f15\u4ece 0 \u5f00\u59cb<\/strong>\uff01\u8bed\u6cd5\uff1a<code>array[\u884c\u7d22\u5f15][\u5217\u7d22\u5f15]<\/code><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4ee3\u7801\u793a\u4f8b<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class ArrayAccessDemo {\n    public static void main(String&#91;] args) {\n        int&#91;]&#91;] oddNumbers = { \n            {1, 3, 5, 7}, \n            {9, 11, 13, 15}, \n            {17, 19, 21, 23} \n        };\n        \n        \/\/ \u8bbf\u95ee\u7b2c3\u884c\u7b2c3\u5217\u7684\u5143\u7d20\uff08\u7d22\u5f152,2\uff09\n        int target = oddNumbers&#91;2]&#91;2];\n        System.out.println(\"\u7b2c3\u884c\u7b2c3\u5217\u7684\u5143\u7d20\uff1a\" + target); \/\/ \u8f93\u51fa\uff1a21\n        \n        \/\/ \u904d\u5386\u6574\u4e2a\u4e8c\u7ef4\u6570\u7ec4\uff08\u5d4c\u5957\u5faa\u73af\uff09\n        System.out.println(\"\\n\u904d\u5386\u4e8c\u7ef4\u6570\u7ec4\uff1a\");\n        for (int i = 0; i&lt;oddNumbers.length; i++) { \/\/ \u5faa\u73af\u884c\n            for (int j = 0; j&lt;oddNumbers&#91;0].length ; j++) { \/\/ \u5faa\u73af\u5217\n                System.out.print(oddNumbers&#91;i]&#91;j] + \" \");\n            }\n            System.out.println(); \/\/ \u6362\u884c\n        }\n    }\n}\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8fd0\u884c\u7ed3\u679c<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u7b2c3\u884c\u7b2c3\u5217\u7684\u5143\u7d20\uff1a21\n\n\u904d\u5386\u4e8c\u7ef4\u6570\u7ec4\uff1a\n1 3 5 7 \n9 11 13 15 \n17 19 21 23 \n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u5b9e\u6218\uff1a\u7528\u4e8c\u7ef4\u6570\u7ec4\u6253\u5370\u6768\u8f89\u4e09\u89d2<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6768\u8f89\u4e09\u89d2\u7684\u6838\u5fc3\u89c4\u5f8b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u7b2c\u4e00\u5217\u548c\u5bf9\u89d2\u7ebf\u5143\u7d20\u5747\u4e3a 1\uff1b<\/li>\n\n\n\n<li>\u5176\u4ed6\u5143\u7d20 = \u4e0a\u4e00\u884c\u76f8\u90bb\u4e24\u4e2a\u5143\u7d20\u4e4b\u548c\uff08<code>triangle[i][j] = triangle[i-1][j-1] + triangle[i-1][j]<\/code>\uff09\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5b8c\u6574\u4ee3\u7801\u5b9e\u73b0<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import java.util.Scanner;\n\npublic class YangHuiTriangle {\n    public static void main(String&#91;] args) {\n        \/\/ 1. \u83b7\u53d6\u7528\u6237\u8f93\u5165\u7684\u884c\u6570\n        Scanner scanner = new Scanner(System.in);\n        System.out.print(\"\u8bf7\u8f93\u5165\u6768\u8f89\u4e09\u89d2\u7684\u884c\u6570\uff1a\");\n        int rows = scanner.nextInt();\n        scanner.close();\n        \n        \/\/ 2. \u8c03\u7528\u65b9\u6cd5\u6253\u5370\u6768\u8f89\u4e09\u89d2\n        printYangHuiTriangle(rows);\n    }\n    \n    \/\/ \u751f\u6210\u5e76\u6253\u5370\u6768\u8f89\u4e09\u89d2\n    public static void printYangHuiTriangle(int rows) {\n        \/\/ \u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\uff08\u884c\u6570=rows\uff0c\u5217\u6570\u968f\u884c\u6570\u53d8\u5316\uff09\n        int&#91;]&#91;] triangle = new int&#91;rows]&#91;];\n        \n        \/\/ 3. \u586b\u5145\u4e8c\u7ef4\u6570\u7ec4\uff08\u6838\u5fc3\u903b\u8f91\u6b63\u786e\uff09\n        for (int i = 0; i &lt; rows; i++) {\n            triangle&#91;i] = new int&#91;i + 1]; \/\/ \u7b2ci\u884c\u6709i+1\u5217\uff08\u7d22\u5f15\u4ece0\u5f00\u59cb\uff09\n            \n            \/\/ \u7b2c\u4e00\u5217\u548c\u6700\u540e\u4e00\u5217\u8bbe\u4e3a1\n            triangle&#91;i]&#91;0] = 1;\n            triangle&#91;i]&#91;i] = 1;\n            \n            \/\/ \u586b\u5145\u5176\u4ed6\u4f4d\u7f6e\u7684\u5143\u7d20\uff08\u4ece\u7b2c2\u884c\u7b2c2\u5217\u5f00\u59cb\uff09\n            for (int j = 1; j &lt; i; j++)  {\n                triangle&#91;i]&#91;j] = triangle&#91;i-1]&#91;j-1] + triangle&#91;i-1]&#91;j];\n            }\n        }\n        \n        \/\/ 4. \u6253\u5370\u6768\u8f89\u4e09\u89d2\uff08\u4fee\u590d\u683c\u5f0f\u5316\u8f93\u51fa\u903b\u8f91\uff09\n        System.out.println(\"\\n\u6768\u8f89\u4e09\u89d2\uff08\" + rows + \"\u884c\uff09\uff1a\");\n        for (int i = 0; i &lt; rows; i++) {\n            \/\/ \u6253\u5370\u524d\u7f6e\u7a7a\u683c\u5b9e\u73b0\u5c45\u4e2d\uff1a\u884c\u6570\u8d8a\u5927\uff0c\u524d\u7f6e\u7a7a\u683c\u8d8a\u5c11\n            for (int k = 0; k &lt; rows - i - 1; k++) {\n                System.out.print(\" \");\n            }\n            \n            \/\/ \u6253\u5370\u6570\u5b57\uff1a\u5faa\u73af\u7ec8\u6b62\u6761\u4ef6\u6539\u4e3aj &lt;= i\uff0c\u786e\u4fdd\u6253\u5370\u6bcf\u884c\u6240\u6709\u6570\u5b57\n            for (int j = 0; j &lt;= i; j++) {\n                System.out.print(triangle&#91;i]&#91;j] + \" \");\n            }\n            System.out.println(); \/\/ \u6362\u884c\n        }\n    }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8fd0\u884c\u793a\u4f8b<\/strong>\uff08\u8f93\u5165\u884c\u6570 5\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u8bf7\u8f93\u5165\u6768\u8f89\u4e09\u89d2\u7684\u884c\u6570\uff1a5\n\n\u6768\u8f89\u4e09\u89d2\uff085\u884c\uff09\uff1a\n    1 \n   1 1 \n  1 2 1 \n 1 3 3 1 \n1 4 6 4 1 \n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e94\u3001\u5b66\u4e60\u5c0f\u7ed3<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4e8c\u7ef4\u6570\u7ec4\u662f\u300c\u6570\u7ec4\u7684\u6570\u7ec4\u300d\uff0c\u6838\u5fc3\u662f\u901a\u8fc7\u300c\u884c + \u5217\u300d\u7d22\u5f15\u64cd\u4f5c\u5143\u7d20\uff1b<\/li>\n\n\n\n<li>\u9759\u6001\u521d\u59cb\u5316\u9002\u5408\u5df2\u77e5\u5143\u7d20\uff0c\u52a8\u6001\u521d\u59cb\u5316\u9002\u5408\u7075\u6d3b\u8d4b\u503c\uff0c\u652f\u6301\u4e0d\u89c4\u5219\u6570\u7ec4\uff1b<\/li>\n\n\n\n<li>\u904d\u5386\u9700\u7528\u5d4c\u5957\u5faa\u73af\uff0c\u5916\u5c42\u63a7\u884c\u3001\u5185\u5c42\u63a7\u5217\uff1b<\/li>\n\n\n\n<li>\u5b9e\u6218\u4e2d\u8981\u7ed3\u5408\u4e1a\u52a1\u573a\u666f\uff08\u5982\u6768\u8f89\u4e09\u89d2\u3001\u77e9\u9635\u8fd0\u7b97\uff09\u7406\u89e3\u5143\u7d20\u5173\u7cfb\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u89c9\u5f97\u6709\u7528\uff0c\u6b22\u8fce\u70b9\u8d5e\u6536\u85cf\uff5e \u540e\u7eed\u8fd8\u4f1a\u5206\u4eab\u66f4\u591a Java \u5b9e\u6218\u6280\u5de7\uff0c\u4e4b\u524d\u7684\u300c\u6570\u636e\u7c7b\u578b\u8f6c\u6362\u300d\u6587\u7ae0\u4e5f\u53ef\u4ee5\u642d\u914d\u5b66\u4e60\uff0c\u57fa\u7840\u66f4\u624e\u5b9e\u54e6\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001\u4ec0\u4e48\u662f\u4e8c\u7ef4\u6570\u7ec4\uff1f \u4e8c\u7ef4\u6570\u7ec4\u672c\u8d28\u662f\u300c\u6570\u7ec4\u7684\u6570\u7ec4\u300d\uff0c\u53ef\u4ee5\u7406\u89e3\u4e3a\u4e00\u4e2a\u8868\u683c\u6216\u77e9\u9635\uff0c\u901a\u8fc7\u300c\u884c\u7d22\u5f15 + \u5217\u7d22\u5f15\u300d\u5b9a\u4f4d\u5143<\/p>\n<div class=\"more-link\">\n\t\t\t\t <a href=\"https:\/\/yunyanglib.cn\/?p=889\" class=\"link-btn theme-btn\"><span>Read More <\/span> <i class=\"fa fa-caret-right\"><\/i><\/a>\n\t\t\t<\/div>\n","protected":false},"author":1,"featured_media":892,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[15],"class_list":["post-889","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java","tag-java"],"_links":{"self":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/889","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=889"}],"version-history":[{"count":2,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/889\/revisions"}],"predecessor-version":[{"id":891,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/889\/revisions\/891"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/media\/892"}],"wp:attachment":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=889"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=889"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=889"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}