I have a sorting issue with a Hashmap. My constraint is that
I MUST use the Hashmap and work with existing code. I do a
database query and place the results in a Hashmap. When I
iterate thru the Hashmap, it loses the original alphabetical
sorting done by the database. So, my problem is that I must
sort the results coming out of the Hashmap which is then
placed into another class.
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Answer Posted / murali.25
1) Use a tree map or construct a treemap from hashmap.
2) If you have used order by in the query to DB, use LinkedHashMap
3) Have a java class with attributes corresponding to fields from the database table. Implement comparator interface.
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