Question

I am using LinkedHashMap. I will always process the first value and that can be deleted (if possible) so that during the next iteration I will again take the same first value from the map to process. What can I use to get the first value.

Answer 1

You can use this to get the first element key:

 Object key = linkedHashMap.keySet().iterator().next();

then to get the value:

Object value = linkedHashMap.get(key);

and finally to remove that entry:

linkedHashMap.remove(key);