public long skip(long n) throws IOException, LogException {
  if (length < n)   badRead((int)n);
  n=in.skip(n);
  length-=(int)n;
  return n;
}

public long skip ( long n ) throws IOException , LogException { if ( length < n ) badRead ( ( int ) n ) ; n = in . skip ( n ) ; length -= ( int ) n ; return n ; }
skips n bytes of input .
