OutputStreamWriter class

                                       
    java.lang.Object                                  
     |                                 
     |--java.io.Writer                              
         |                             
         |--java.io.OutputStreamWriter                          
                                       

An OutputStreamWriter is a bridge from character streams to byte streams: Characters written to it are encoded into bytes using a specified charset.

ConstructorSummary
OutputStreamWriter(OutputStream out)Creates an OutputStreamWriter that uses the default character encoding.
OutputStreamWriter(OutputStream out, Charset cs)Creates an OutputStreamWriter that uses the given charset.
OutputStreamWriter(OutputStream out, CharsetEncoder enc)Creates an OutputStreamWriter that uses the given charset encoder.
OutputStreamWriter(OutputStream out, String charsetName)Creates an OutputStreamWriter that uses the named charset.

ReturnMethodSummary
voidclose()Closes the stream, flushing it first.
voidflush()Flushes the stream.
StringgetEncoding()Returns the name of the character encoding being used by this stream.
voidwrite(char[] cbuf, int off, int len)Writes a portion of an array of characters.
voidwrite(int c)Writes a single character.
voidwrite(String str, int off, int len)Writes a portion of a string.
Revised from Open JDK source code

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

public class Main {
  public static void main(String[] args) throws Exception {
    try {
      FileOutputStream fos = new FileOutputStream("test.txt");
      Writer out = new OutputStreamWriter(fos, "UTF8");
      out.write("java2s.com");
      out.close();
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
}
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