{"id":12882,"date":"2024-03-14T16:47:27","date_gmt":"2024-03-14T16:47:27","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-use-filereader-in-java-to-read-a-txt-file\/"},"modified":"2025-08-05T08:15:21","modified_gmt":"2025-08-05T08:15:21","slug":"how-to-use-filereader-in-java-to-read-a-txt-file","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-use-filereader-in-java-to-read-a-txt-file\/","title":{"rendered":"Java FileReader: Read Text Files"},"content":{"rendered":"<p>You can use the following steps to read a txt file using FileReader:<\/p>\n<ol>\n<li>Importing necessary packages: import java.io.FileReader;<\/li>\n<li>Create a FileReader object and pass the path of the txt file you want to read as a parameter: FileReader reader = new FileReader(\u201cfile path\u201d);<\/li>\n<li>Create a character array to store the read data: char[] buffer = new char[1024];<\/li>\n<li>Use the read() method to read data from a txt file and store it in a character array, then return the number of characters read: int length = reader.read(buffer);<\/li>\n<li>While looping through the character array, continue until the read character count is -1, indicating the end of the file has been reached.<\/li>\n<li>In a loop, you can manipulate the data that is read as needed, such as printing it to the console using System.out.println(buffer).<\/li>\n<li>Close the FileReader object: reader.close();<\/li>\n<\/ol>\n<p>The complete sample code is shown below:<\/p>\n<pre class=\"post-pre\"><code><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_\">FileReaderExample<\/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\">FileReader<\/span> <span class=\"hljs-variable\">reader<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-literal\">null<\/span>;\r\n        <span class=\"hljs-keyword\">try<\/span> {\r\n            reader = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">FileReader<\/span>(<span class=\"hljs-string\">\"path\/to\/file.txt\"<\/span>);\r\n            <span class=\"hljs-type\">char<\/span>[] buffer = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">char<\/span>[<span class=\"hljs-number\">1024<\/span>];\r\n            <span class=\"hljs-type\">int<\/span> length;\r\n            <span class=\"hljs-keyword\">while<\/span> ((length = reader.read(buffer)) != -<span class=\"hljs-number\">1<\/span>) {\r\n                System.out.println(buffer);\r\n            }\r\n        } <span class=\"hljs-keyword\">catch<\/span> (IOException e) {\r\n            e.printStackTrace();\r\n        } <span class=\"hljs-keyword\">finally<\/span> {\r\n            <span class=\"hljs-keyword\">try<\/span> {\r\n                <span class=\"hljs-keyword\">if<\/span> (reader != <span class=\"hljs-literal\">null<\/span>) {\r\n                    reader.close();\r\n                }\r\n            } <span class=\"hljs-keyword\">catch<\/span> (IOException e) {\r\n                e.printStackTrace();\r\n            }\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>Please replace &#8220;file path&#8221; with the actual path to the txt file.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>You can use the following steps to read a txt file using FileReader: Importing necessary packages: import java.io.FileReader; Create a FileReader object and pass the path of the txt file you want to read as a parameter: FileReader reader = new FileReader(\u201cfile path\u201d); Create a character array to store the read data: char[] buffer = [&hellip;]<\/p>\n","protected":false},"author":5,"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":[8126,16982,10380,6613,16983],"class_list":["post-12882","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-java-file-handling","tag-java-filereader","tag-java-io-tutorial","tag-read-file-java","tag-text-file-tutorial"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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