OutputStreamWriter OutputStreamWriter(OutputStream, String) in Java

OutputStreamWriter(OutputStream, String): This method is available in the java.io.OutputStreamWriter class of Java.

Syntax:

java.io.OutputStreamWriter.OutputStreamWriter(OutputStream out, String charsetName) throws UnsupportedEncodingException

This method takes two arguments. This method creates an OutputStreamWriter that uses the named charset.

Parameters: Two parameters are required for this method.

out: An OutputStream.

charsetName: The name of a supported charset.

Throws:

1. UnsupportedEncodingException - If the named encoding is not supported

Approach 1: When no exception

Java

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;

public class OutputStreamWriterOutputStreamWriter4 {
    public static void main(String[] args) throws IOException {

        OutputStream out = new FileOutputStream("D:\\hello.txt");
        String charsetName = "UTF-8";
        OutputStreamWriter outputStreamWriter =
             new OutputStreamWriter(out, charsetName);

        System.out.println(outputStreamWriter);
        outputStreamWriter.close();
    }
}

Output:

java.io.OutputStreamWriter@26f0a63f

Approach 2: UnsupportedEncodingException 

Java

package com.OutputStreamWriter;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;

public class OutputStreamWriterOutputStreamWriter4 {
    public static void main(String[] args) throws IOException {

        OutputStream out = new FileOutputStream("D:\\hello.txt");
        String charsetName = "UTF-899999";
        OutputStreamWriter outputStreamWriter = 
                 new OutputStreamWriter(out, charsetName);

        System.out.println(outputStreamWriter);
        outputStreamWriter.close();
    }
}

Output:

Exception in thread "main" java.io.UnsupportedEncodingException: UTF-899999
	at java.base/sun.nio.cs.StreamEncoder.forOutputStreamWriter(StreamEncoder.java:67)
	at java.base/java.io.OutputStreamWriter.<init>(OutputStreamWriter.java:99)
	at com.OutputStreamWriter.OutputStreamWriterOutputStreamWriter4.main(OutputStreamWriterOutputStreamWriter4.java:13)

Some other methods of OutputStreamWriter

close(): This method closes the stream, flushing it first.

flush(): This method flushes the stream.

getEncoding(): This method returns the name of the character encoding being used by this stream.

OutputStreamWriter(OutputStream): This method creates an OutputStreamWriter that uses the default character encoding.

OutputStreamWriter(OutputStream, Charset): This method creates an OutputStreamWriter that uses the given charset.

OutputStreamWriter(OutputStream, CharsetEncoder): This method creates an OutputStreamWriter that uses the given charset encoder.

OutputStreamWriter(OutputStream, String): This method creates an OutputStreamWriter that uses the named charset.

write(int): This method writes a single character.

write(char[], int, int): This method writes a portion of an array of characters.

write(String, int, int): This method writes a portion of a string.