Java Program to 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);
       }
     }
   }