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

 
Ranch Hand
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Hi,
How can be retrieve elements from HashMap,TreeSet,TreeMap,Hashtable... into our own order like reverse or ascending?
 
Bartender
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Use a Comparator, or make your objects Comparable, then you can sort your collection using whatever logic you like.
 
Sheriff
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That will only work for TreeMap and TreeSet. HashMap, HashSet and Hashtable are not meant to be ordered.
 
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