Iterating through a LinkedHashMap in reverse order

Question

I have a LinkedHashMap:

LinkedHashMap

that I need to iterate through from a given key\'s position, backwar

Answer 1

Using "user22745008" solution and labdas with some generics you can have a very neat solution as a method:

  public static  LinkedHashMap reverseMap(LinkedHashMap toReverse)
  {
      LinkedHashMap reversedMap = new LinkedHashMap<>();
      List reverseOrderedKeys = new ArrayList<>(toReverse.keySet());
      Collections.reverse(reverseOrderedKeys);
      reverseOrderedKeys.forEach((key)->reversedMap.put(key,toReverse.get(key)));
      return reversedMap;
    }