how can be retrieve from any collection into our own order?

[Rahul Noel]

Hi,
How can be retrieve elements from HashMap,TreeSet,TreeMap,Hashtable... into our own order like reverse or ascending?

[Paul Sturrock]

Use a Comparator, or make your objects Comparable, then you can sort your collection using whatever logic you like.

[Rob Spoor]

That will only work for TreeMap and TreeSet. HashMap, HashSet and Hashtable are not meant to be ordered.