{"id":20302,"date":"2024-03-15T20:15:53","date_gmt":"2024-03-15T20:15:53","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-print-a-table-in-java\/"},"modified":"2024-03-21T17:45:42","modified_gmt":"2024-03-21T17:45:42","slug":"how-to-print-a-table-in-java","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-print-a-table-in-java\/","title":{"rendered":"How to print a table in Java?"},"content":{"rendered":"<p>In Java, you can use string formatting and loops to print a table. Here is a simple example:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">TablePrinter<\/span> {\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">(String[] args)<\/span> {\r\n        String[][] data = {\r\n            {<span class=\"hljs-string\">\"Name\"<\/span>, <span class=\"hljs-string\">\"Age\"<\/span>, <span class=\"hljs-string\">\"Gender\"<\/span>},\r\n            {<span class=\"hljs-string\">\"John\"<\/span>, <span class=\"hljs-string\">\"25\"<\/span>, <span class=\"hljs-string\">\"Male\"<\/span>},\r\n            {<span class=\"hljs-string\">\"Alice\"<\/span>, <span class=\"hljs-string\">\"30\"<\/span>, <span class=\"hljs-string\">\"Female\"<\/span>},\r\n            {<span class=\"hljs-string\">\"Bob\"<\/span>, <span class=\"hljs-string\">\"18\"<\/span>, <span class=\"hljs-string\">\"Male\"<\/span>}\r\n        };\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u8ba1\u7b97\u6bcf\u5217\u7684\u6700\u5927\u5bbd\u5ea6<\/span>\r\n        <span class=\"hljs-type\">int<\/span>[] columnWidths = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">int<\/span>[data[<span class=\"hljs-number\">0<\/span>].length];\r\n        <span class=\"hljs-keyword\">for<\/span> (String[] row : data) {\r\n            <span class=\"hljs-keyword\">for<\/span> (<span class=\"hljs-type\">int<\/span> <span class=\"hljs-variable\">i<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">0<\/span>; i &lt; row.length; i++) {\r\n                <span class=\"hljs-keyword\">if<\/span> (row[i].length() &gt; columnWidths[i]) {\r\n                    columnWidths[i] = row[i].length();\r\n                }\r\n            }\r\n        }\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u6253\u5370\u8868\u5934<\/span>\r\n        <span class=\"hljs-keyword\">for<\/span> (<span class=\"hljs-type\">int<\/span> <span class=\"hljs-variable\">i<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">0<\/span>; i &lt; data[<span class=\"hljs-number\">0<\/span>].length; i++) {\r\n            System.out.format(<span class=\"hljs-string\">\"%-\"<\/span> + columnWidths[i] + <span class=\"hljs-string\">\"s\"<\/span>, data[<span class=\"hljs-number\">0<\/span>][i]);\r\n            System.out.print(<span class=\"hljs-string\">\" | \"<\/span>);\r\n        }\r\n        System.out.println();\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u6253\u5370\u5206\u9694\u7ebf<\/span>\r\n        <span class=\"hljs-keyword\">for<\/span> (<span class=\"hljs-type\">int<\/span> <span class=\"hljs-variable\">i<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">0<\/span>; i &lt; columnWidths.length; i++) {\r\n            <span class=\"hljs-keyword\">for<\/span> (<span class=\"hljs-type\">int<\/span> <span class=\"hljs-variable\">j<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">0<\/span>; j &lt; columnWidths[i] + <span class=\"hljs-number\">3<\/span>; j++) {\r\n                System.out.print(<span class=\"hljs-string\">\"-\"<\/span>);\r\n            }\r\n        }\r\n        System.out.println();\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u6253\u5370\u6570\u636e\u884c<\/span>\r\n        <span class=\"hljs-keyword\">for<\/span> (<span class=\"hljs-type\">int<\/span> <span class=\"hljs-variable\">i<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">1<\/span>; i &lt; data.length; i++) {\r\n            <span class=\"hljs-keyword\">for<\/span> (<span class=\"hljs-type\">int<\/span> <span class=\"hljs-variable\">j<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">0<\/span>; j &lt; data[i].length; j++) {\r\n                System.out.format(<span class=\"hljs-string\">\"%-\"<\/span> + columnWidths[j] + <span class=\"hljs-string\">\"s\"<\/span>, data[i][j]);\r\n                System.out.print(<span class=\"hljs-string\">\" | \"<\/span>);\r\n            }\r\n            System.out.println();\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>The above code first defines a two-dimensional string array named data, which contains the data of the table. Then, it calculates the maximum width of each column through a loop and stores it in the columnWidths array. Next, it uses a loop to print the table header, separating lines, and data rows.<\/p>\n<p>The output is as follows:<\/p>\n<pre class=\"post-pre\"><code>Name  | Age | Gender\r\n------|-----|-------\r\nJohn  | 25  | Male  \r\nAlice | 30  | Female\r\nBob   | 18  | Male  \r\n<\/code><\/pre>\n<p>By adjusting the data in the array, different tables can be printed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Java, you can use string formatting and loops to print a table. Here is a simple example: public class TablePrinter { public static void main(String[] args) { String[][] data = { {&#8220;Name&#8221;, &#8220;Age&#8221;, &#8220;Gender&#8221;}, {&#8220;John&#8221;, &#8220;25&#8221;, &#8220;Male&#8221;}, {&#8220;Alice&#8221;, &#8220;30&#8221;, &#8220;Female&#8221;}, {&#8220;Bob&#8221;, &#8220;18&#8221;, &#8220;Male&#8221;} }; \/\/ \u8ba1\u7b97\u6bcf\u5217\u7684\u6700\u5927\u5bbd\u5ea6 int[] columnWidths = new int[data[0].length]; for (String[] row [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-20302","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to print a table in Java? - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/how-to-print-a-table-in-java\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to print a table in Java?\" \/>\n<meta property=\"og:description\" content=\"In Java, you can use string formatting and loops to print a table. Here is a simple example: public class TablePrinter { public static void main(String[] args) { String[][] data = { {&quot;Name&quot;, &quot;Age&quot;, &quot;Gender&quot;}, {&quot;John&quot;, &quot;25&quot;, &quot;Male&quot;}, {&quot;Alice&quot;, &quot;30&quot;, &quot;Female&quot;}, {&quot;Bob&quot;, &quot;18&quot;, &quot;Male&quot;} }; \/\/ \u8ba1\u7b97\u6bcf\u5217\u7684\u6700\u5927\u5bbd\u5ea6 int[] columnWidths = new int[data[0].length]; for (String[] row [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-to-print-a-table-in-java\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-15T20:15:53+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-21T17:45:42+00:00\" \/>\n<meta name=\"author\" content=\"William Carter\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:site\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"William Carter\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-print-a-table-in-java\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-print-a-table-in-java\/\"},\"author\":{\"name\":\"William Carter\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/f697031891aacefc4b681d139781d3c0\"},\"headline\":\"How to print a table in Java?\",\"datePublished\":\"2024-03-15T20:15:53+00:00\",\"dateModified\":\"2024-03-21T17:45:42+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-print-a-table-in-java\/\"},\"wordCount\":94,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-print-a-table-in-java\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/how-to-print-a-table-in-java\/\",\"name\":\"How to print a table in Java? 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