{"id":8189,"date":"2024-03-14T07:41:08","date_gmt":"2024-03-14T07:41:08","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-use-readline-to-read-a-specific-line-in-java\/"},"modified":"2025-08-03T01:41:28","modified_gmt":"2025-08-03T01:41:28","slug":"how-to-use-readline-to-read-a-specific-line-in-java","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-use-readline-to-read-a-specific-line-in-java\/","title":{"rendered":"Reading Specific Lines in Java"},"content":{"rendered":"<p>In Java, you can use the readLine() method of the BufferedReader class to read a text file line by line. Here is an example code demonstrating how to use the readLine() method to read the content of a specific line number:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> java.io.BufferedReader;\r\n<span class=\"hljs-keyword\">import<\/span> java.io.FileReader;\r\n<span class=\"hljs-keyword\">import<\/span> java.io.IOException;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">ReadSpecificLine<\/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        <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">filePath<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">\"path\/to\/file.txt\"<\/span>;\r\n        <span class=\"hljs-type\">int<\/span> <span class=\"hljs-variable\">lineNumber<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">5<\/span>; <span class=\"hljs-comment\">\/\/ \u8bfb\u53d6\u7b2c5\u884c\u7684\u5185\u5bb9<\/span>\r\n\r\n        <span class=\"hljs-keyword\">try<\/span> (<span class=\"hljs-type\">BufferedReader<\/span> <span class=\"hljs-variable\">br<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">BufferedReader<\/span>(<span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">FileReader<\/span>(filePath))) {\r\n            String line;\r\n            <span class=\"hljs-type\">int<\/span> <span class=\"hljs-variable\">currentLine<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">0<\/span>;\r\n\r\n            <span class=\"hljs-keyword\">while<\/span> ((line = br.readLine()) != <span class=\"hljs-literal\">null<\/span>) {\r\n                currentLine++;\r\n                <span class=\"hljs-keyword\">if<\/span> (currentLine == lineNumber) {\r\n                    System.out.println(<span class=\"hljs-string\">\"Line \"<\/span> + lineNumber + <span class=\"hljs-string\">\": \"<\/span> + line);\r\n                    <span class=\"hljs-keyword\">break<\/span>;\r\n                }\r\n            }\r\n        } <span class=\"hljs-keyword\">catch<\/span> (IOException e) {\r\n            e.printStackTrace();\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>In the example above, the file path and line number to read are first specified. Then, a BufferedReader is used to read the file and its contents line by line. When the line number being read matches the specified line number, the content of that line is output. Finally, a try-with-resources statement is used to handle any exceptions that may occur during the file reading process.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Java, you can use the readLine() method of the BufferedReader class to read a text file line by line. Here is an example code demonstrating how to use the readLine() method to read the content of a specific line number: import java.io.BufferedReader; import java.io.FileReader; import java.io.IOException; public class ReadSpecificLine { public static void main(String[] [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[6593,87,6612,1862,10867],"class_list":["post-8189","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-bufferedreader","tag-java","tag-java-file-reading","tag-java-i-o","tag-readline"],"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>Reading Specific Lines in Java - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how to use Java&#039;s readline method to read specific lines from a file. 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