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TreeSet Question

 
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1Why only the output "dsts" prints ?Can you explain it more using compareTo operator?
 
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You are using a TreeSet. A TreeSet instance performs all element comparisons using its compareTo (or compare) method, so two elements that are deemed equal by this method are, from the standpoint of the set, equal. You cannot add two equals objects in a Set. If all your objects compareTo method returns 0, they are all equal, so only only object can be added in the set : the first one.
 
thejaka samarakoon
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Thanks
 
Of course, I found a very beautiful couch. Definitely. And this tiny ad:
a bit of art, as a gift, the permaculture playing cards
https://gardener-gift.com
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