question: public static Integer zpvc ( Number ... values ) { if ( values == null || values . length == 0 ) { throw new IllegalArgumentException ( "Argument is null or empty" ) ; } int count = 0 ; for ( Number value : values ) { if ( value != null && value . doubleValue ( ) >= 0d ) { count ++ ; } } return count ; }
target:  Function which will return the count of zero or positive values among the given argument values.