OutputStreamWriter<\/code> class of the java.io<\/code> package can be used to convert data in character form into data in bytes form.<\/p>\n\n\n\nIt extends the abstract class Writer<\/code>.<\/p>\n\n\n\n![\"The](\"https:\/\/cdn.programiz.com\/sites\/tutorial2program\/files\/java-%20output-stream-writer.png\" "\\"Java")
<\/figure>\n\n\n\nThe OutputStreamWriter<\/code> class works with other output streams. It is also known as a bridge between byte streams and character streams. This is because the OutputStreamWriter<\/code> converts its characters into bytes.<\/p>\n\n\n\nFor example, some characters require 2 bytes to be stored in the storage. To write such data we can use the output stream writer that converts the character into corresponding bytes and stores the bytes together.<\/p>\n\n\n\n
\n\n\n\nCreate an OutputStreamWriter<\/h2>\n\n\n\n
In order to create an OutputStreamWriter<\/code>, we must import the java.io.OutputStreamWriter<\/code> package first. Once we import the package here is how we can create the output stream writer.<\/p>\n\n\n\n\/\/ Creates an OutputStream\nFileOutputStream file = new FileOutputStream(String path);\n\n\/\/ Creates an OutputStreamWriter\nOutputStreamWriter output = new OutputStreamWriter(file);\n<\/code><\/pre>\n\n\n\nIn the above example, we have created an OutputStreamWriter<\/code> named output along with the FileOutputStream<\/code> named file.<\/p>\n\n\n\nHere, we are using the default character encoding to write characters to the output stream.<\/p>\n\n\n\n
However, we can specify the type of character encoding (UTF8<\/strong> or UTF16<\/strong>) to be used to write data.<\/p>\n\n\n\n\/\/ Creates an OutputStreamWriter specifying the character encoding\nOutputStreamWriter output = new OutputStreamWriter(file, Charset cs);\n<\/code><\/pre>\n\n\n\nHere, we have used the Charset<\/code> class to specify the type of character encoding.<\/p>\n\n\n\n
\n\n\n\nMethods of OutputStreamWriter<\/h2>\n\n\n\n
The OutputStreamWriter<\/code> class provides implementations for different methods present in the Writer<\/code> class.<\/p>\n\n\n\nwrite() Method<\/h3>\n\n\n\nwrite()<\/code> – writes a single character to the writer<\/li>write(char[] array)<\/code> – writes the characters from the specified array to the writer<\/li>write(String data)<\/code> – writes the specified string to the writer<\/li><\/ul>\n\n\n\n
\n\n\n\nExample: OutputStreamWriter to write data to a File<\/h3>\n\n\n\nimport java.io.FileOutputStream;\nimport java.io.OutputStreamWriter;\n\npublic class Main {\n\n public static void main(String args[]) {\n\n String data = \"This is a line of text inside the file.\";\n\n try {\n \/\/ Creates a FileOutputStream\n FileOutputStream file = new FileOutputStream(\"output.txt\");\n\n \/\/ Creates an OutputStreamWriter\n OutputStreamWriter output = new OutputStreamWriter(file);\n\n \/\/ Writes string to the file\n output.write(data);\n\n \/\/ Closes the writer\n output.close();\n }\n\n catch (Exception e) {\n e.getStackTrace();\n }\n }\n}\n<\/code><\/pre>\n\n\n\nIn the above example, we have created an output stream reader using the file output stream. The output stream reader is linked with the output.txt<\/strong> file.<\/p>\n\n\n\nFileOutputStream file = new FileOutputStream(\"output.txt\");\nOutputStreamWriter output = new OutputStreamWriter(file);\n<\/code><\/pre>\n\n\n\nTo write data to the file, we have used the write()<\/code> method.<\/p>\n\n\n\nHere, when we run the program, the output.txt<\/strong> file is filled with the following content.<\/p>\n\n\n\nThis is a line of text inside the file.\n<\/code><\/pre>\n\n\n\n
\n\n\n\ngetEncoding() Method<\/h2>\n\n\n\n
The getEncoding()<\/code> method can be used to get the type of encoding that is used to write data to the output stream. For example,<\/p>\n\n\n\nimport java.io.OutputStreamWriter;\nimport java.nio.charset.Charset;\nimport java.io.FileOutputStream;\n\nclass Main {\n public static void main(String[] args) {\n\n try {\n \/\/ Creates an output stream\n FileOutputStream file = new FileOutputStream(\"output.txt\");\n\n \/\/ Creates an output stream reader with default encoding\n OutputStreamWriter output1 = new OutputStreamWriter(file);\n\n \/\/ Creates an output stream reader specifying the encoding\n OutputStreamWriter output2 = new OutputStreamWriter(file, Charset.forName(\"UTF8\"));\n\n \/\/ Returns the character encoding of the output stream\n System.out.println(\"Character encoding of output1: \" + output1.getEncoding());\n System.out.println(\"Character encoding of output2: \" + output2.getEncoding());\n\n \/\/ Closes the reader\n output1.close();\n output2.close();\n }\n\n catch(Exception e) {\n e.getStackTrace();\n }\n }\n}\n<\/code><\/pre>\n\n\n\nOutput<\/strong><\/p>\n\n\n\nThe character encoding of output1: Cp1252\nThe character encoding of output2: UTF8\n<\/samp><\/code><\/pre>\n\n\n\nIn the above example, we have created 2 output stream writer named output1<\/var> and output2<\/var>.<\/p>\n\n\n\n- output1<\/var> does not specify the character encoding. Hence the
getEncoding()<\/code> method returns the default character encoding.<\/li>- output2<\/var> specifies the character encoding, UTF8<\/strong>. Hence the
getEncoding()<\/code> method returns the specified character encoding.<\/li><\/ul>\n\n\n\nNote<\/strong>: We have used the\u00a0Charset.forName()<\/code>\u00a0method to specify the type of character encoding. <\/p>\n\n\n\n
\n\n\n\nclose() Method<\/h2>\n\n\n\n
To close the output stream writer, we can use the close()<\/code> method. Once the close()<\/code> method is called, we cannot use the writer to write the data.<\/p>\n\n\n\n
\n\n\n\nOther methods of Output Stream Writer<\/h2>\n\n\n\nMethod<\/th> Description<\/th><\/tr> flush()<\/code><\/td>forces to write all the data present in the writer to the corresponding destination<\/td><\/tr> append()<\/code><\/td>inserts the specified character to the current writer<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"In this tutorial, we will learn about Java OutputStreamWriter and its methods with the help of examples. The OutputStreamWriter class of the java.io package can be used to convert data in character form into data in bytes form. It extends the abstract class Writer. The OutputStreamWriter class works with other output streams. It is also known as a bridge between byte streams […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[532],"tags":[],"_links":{"self":[{"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/posts\/1300"}],"collection":[{"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/comments?post=1300"}],"version-history":[{"count":0,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/posts\/1300\/revisions"}],"wp:attachment":[{"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/media?parent=1300"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/categories?post=1300"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/tags?post=1300"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}