Write file using FileOutputStream

    public class WriteFile

   {

     public static void main(String[] args)

     {

       String strFilePath = "C:/FileIO/demo.txt";

       try

       {

         FileOutputStream fos = new FileOutputStream(strFilePath);

         byte b = 01;

         /*

         * To write byte data to a file, use

         * void write(int i) method of Java FileOutputStream class.

         * This method writes given byte to a file.

         */

        

         fos.write(b);

        

         /*

         * Close FileOutputStream using,

         * void close() method of Java FileOutputStream class.

         *

         */

         fos.close();

       }

       catch(FileNotFoundException ex)

       {

         System.out.println("FileNotFoundException : " + ex);

       }

       catch(IOException ioe)

       {

          System.out.println("IOException : " + ioe);

       }

     }

   }