// nio
//копирование файла
     public   static   void  copyFile(String p_srcFileName, String p_dstFileName) {
         try  {
            FileChannel srcChannel =  new  FileInputStream(p_srcFileName).getChannel();
            FileChannel dstChannel =  new  FileOutputStream(p_dstFileName).getChannel();
            dstChannel.transferFrom(srcChannel,  0 , srcChannel.size());

            srcChannel.close();
            dstChannel.close();
        }  catch  (IOException e) {
            e.printStackTrace();
        }
    }