public static String mapToCsv ( Map < String , String > map ) { StringBuilder sb = new StringBuilder ( ) ; for ( String key : map . keySet ( ) ) { sb . append ( "," ) ; String val = map . get ( key ) ; sb . append ( key + "=" + val ) ; } return sb . toString ( ) . substring ( 1 ) ; }
Returns a String containing a comma - separated list of name = value pairs from a map .