question: public String nextToken ( ) throws NoSuchElementException { if ( pos < len && delim . indexOf ( str . charAt ( pos ) ) >= 0 ) { if ( retDelims ) return str . substring ( pos , ++ pos ) ; while ( ++ pos < len && delim . indexOf ( str . charAt ( pos ) ) >= 0 ) ; } if ( pos < len ) { int start = pos ; while ( ++ pos < len && delim . indexOf ( str . charAt ( pos ) ) < 0 ) ; return str . substring ( start , pos ) ; } throw new NoSuchElementException ( ) ; }
target:  Returns the nextToken of the string.