Java: how to convert a List<?> to a Map<String,?> [duplicate]

Answer 1

Here's what I would do. I am not entirely sure if I am handling generics right, but oh well:

public  Map mapMe(Collection list) {
   Map map = new HashMap();
   for (T el : list) {
       map.put(el.toString(), el);
   }   
   return map;
}

Just pass a Collection to it, and have your classes implement toString() to return the name. Polymorphism will take care of it.