Code to find repeated elements in List

public class Repeatedcount
{        
 public static void main(String...args)
             {  
          List<String> userNameList = new ArrayList();
userNameList.add("ram");
userNameList.add("som");
userNameList.add("som");
userNameList.add("som");
userNameList.add("ram");

            Map<String, Integer> mp = new HashMap<String, Integer>();

   for (String userName : userNameList) {

    Integer count = mp.get(userName);

    mp.put(userName, count == null ? 1 : ++count);

System.out.println(mp);
           }
}