private void initVoldFstabToCache() throws IOException {
  cache.clear();
  BufferedReader br=new BufferedReader(new FileReader(VOLD_FSTAB));
  String tmp=null;
  while ((tmp=br.readLine()) != null) {
    if (tmp.startsWith(HEAD)) {
      cache.add(tmp);
    }
  }
  br.close();
  cache.trimToSize();
}

private void initVoldFstabToCache ( ) throws IOException { cache . clear ( ) ; BufferedReader br = new BufferedReader ( new FileReader ( VOLD_FSTAB ) ) ; String tmp = null ; while ( ( tmp = br . readLine ( ) ) != null ) { if ( tmp . startsWith ( HEAD ) ) { cache . add ( tmp ) ; } } br . close ( ) ; cache . trimToSize ( ) ; }
init the words into the cache array
