I want to return data from TreeMap in order from DB

i want to return data from treemap in the order from the db... but it returns it in alphabetical order...

You do realise of course that a TreeMap is a SORTED Map.
It will sort whatever you put into it as you put items into it.
If you don't want the items sorted, don't use a TreeMap.
As suggested, a LinkedHashMap gives you the best of both worlds
I often use a LinkedHashMap, indexed by primary key id, but ordered by something else (name for instance)
- Retains insertion order (by default) for iteration
- Provides the quick access of the Map - by id

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