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I have a two HashSet objects with elements {A,B,C,D} and {A,B,X,Y}. I need a third set with unique elements from both sets result will be like {C,D,X,Y}.

govardhan perasani
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  • Your code ? what have you tried so far ? – voucher_wolves Nov 07 '16 at 14:20
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    look at `Set#retainAll()` – Andrew Tobilko Nov 07 '16 at 14:20
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    Isn't B unique? – nakano531 Nov 07 '16 at 14:22
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    Sounds like you're asking for an implementation of [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference). See also [What is the best way get the symmetric difference between two sets in java?](/q/8064570) and [Symmetric difference of two sets in Java?](/q/8064570). If you meant something else, you should probably [edit] your question to clarify what's different in your situation. – Toby Speight Nov 07 '16 at 14:32

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