question: @ Override public void deletePage ( int pageID ) { try { super . deletePage ( pageID ) ; countWrite ( ) ; byte [ ] array = pageToByteArray ( null ) ; long offset = ( ( long ) ( header . getReservedPages ( ) + pageID ) ) * ( long ) pageSize ; file . seek ( offset ) ; file . write ( array ) ; } catch ( IOException e ) { throw new RuntimeException ( e ) ; } }
target:  Deletes the node with the specified id from this file.