Having a Multimap sorted on keys only in Java

Question

I would like to have a c.g.c.c.Multimap that is sorted based on keys only. The values shouldn\'t be sorted. I\'ve tried to build something with guava\'s T

Answer 1

Best solution which always works for me is to use Multimap & TreeMultiMap. this will order results in ascending order on keys even if you have multiple duplicate keys. Solution below:

Multimap map= TreeMultimap.create(Ordering.natural().reverse(),         Ordering.natural());

if (!map.isEmpty()) {               
                printMap(map);
            }

public static  void printMap(Multimap map) throws Exception {
        for (Map.Entry entry : map.entries()) {
            System.out.println("Key : " + entry.getKey() 
                + " Value : " + entry.getValue());              
        }
    }