question: public int read ( char [ ] buffer , int offset , int length ) throws IOException { byte [ ] bytes = new byte [ length ] ; int count = _file . read ( bytes , 0 , length ) ; for ( int i = 0 ; i < count ; i ++ ) { buffer [ offset + i ] = ( char ) bytes [ i ] ; } return count ; }
target:  Reads a block starting from the current file pointer.