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Editorial Team
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Asked: 2026-06-06T10:00:03+00:00

I need to create a class that will store a unique object elements. I

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I need to create a class that will store a unique object elements. I don’t need to sort these elements but they must be unique.

Can someone give me advice as to what interface I should be using? It was suggested to me by one person that I could use Set and then another person said Vector or List. Now I am totally confused 🙁

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1 Answer

  1. Editorial Team

    Set is what exactly you are looking for 

    Set<Integer> uniqueValues = new HashSet<Integer>();
uniqueValues.add(1);
uniqueValues.add(2);
uniqueValues.add(3);
uniqueValues.add(2);// will be ignored
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