public void connect() throws IOException
   {
      if (connected)
         return;

      if (!file.exists())
      {
         throw new FileNotFoundException(file.getPath());
      }
      connected = true;
   }
public void connect() throws IOException
   {
      if (connected)
         return;

      if (!file.exists())
      {
         throw new FileNotFoundException(file.getPath());
      }
      connected = true;
   }
public void connect ( ) throws IOException { if ( connected ) return ; if ( ! file . exists ( ) ) { throw new FileNotFoundException ( file . getPath ( ) ) ; } connected = true ; }
Checks if the underlying file for this connection exists.

@throws FileNotFoundException
Checks if the underlying file for this connection exists .