question: public static String join ( NamedValue [ ] values , String separator ) { StringBuilder buff = new StringBuilder ( ) ; for ( int i = 0 ; i < values . length ; i ++ ) { buff . append ( values [ i ] ) ; if ( i < values . length - 1 ) buff . append ( separator ) ; } return buff . toString ( ) ; }
target:  Joins multiple NamedValues into a single String