Flush output stream

/*
  Flush output stream
  This Java example shows how to flush output stream using flush method of
  DataOutputStream class.
*/

import java.io.DataOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;


public class FlushStream {

  public static void main(String[] args) {
    String strFilePath = "C://FileIO//WriteByte.txt";
   
    try
    {
      //create FileOutputStream object
      FileOutputStream fos = new FileOutputStream(strFilePath);
     
      /*
       * To create DataOutputStream object from FileOutputStream use,
       * DataOutputStream(OutputStream os) constructor.
       *
       */
      
       DataOutputStream dos = new DataOutputStream(fos);
      
       String strContent = "This example shows how to flush output stream!";
       dos.writeBytes(strContent);
      
       /*
        * To flush output stream, use
        * void flush() method of DataOutputStream class.
        *
        * This method internally calls flush method of underlying OutputStream
        * class which forces any buffered output bytes to be written in the stream.
        */
       
        dos.flush();
       
        //close the stream
        dos.close();
        
    }
    catch (IOException e)
    {
      System.out.println("IOException : " + e);
    }

  }
}