How to get element position from Java Map

Question

I have this Java Map:

Can you tell me how I can get the 6-th element of the Map?

private static final Map cache = new HashMap<         


        

Answer 1

HashMap doesn't grantee the order. If you concern about order you should use LinkedHashMap

Map orderedMap=new LinkedHashMap<>();

Now when you put an element it will keep the order what you put.

If you want to get 6th element, now you can do it since you have your elements in order.

 orderedMap.values().toArray()[5]// will give you 6th value in the map. 

Example

 Map orderedMap=new LinkedHashMap<>();
 orderedMap.put("a","a");
 orderedMap.put("b","b");
 System.out.println(orderedMap.values().toArray()[1]);  // you will get b(value)
 System.out.println(orderedMap.keySet().toArray()[1]);  // you will get b(key)
    }