Discussion :: Objects and Collections - General Questions (Q.No.{QUES_NO})
| Ashok said: (Jun 6, 2011) | |
| I think its wrong because as the question is like collection that don't allow duplicate elements not the keys, so it must be option D. | |
| Chandra said: (Jun 14, 2011) | |
| Map allow duplicates but I will overide with previous value. So we can, t say duplicate keys not allow. | |
| Dave Hampton said: (Dec 7, 2011) | |
| The question is ambiguous. It does not refer to 'unique keys' - it just states 'no duplicates'. You can in fact have duplicate object values in a Map referenced by different keys. The answer to the question as it stands is java.util.Set which translates to answer D as it's not listed. | |
| Saroj Kumar Das said: (Mar 14, 2012) | |
| See Map don't contain duplicate keys but it contain duplicate values, it may be uses HashMap. I think the answer is D. | |
| Sonam said: (Sep 5, 2012) | |
| Yes, the correct answer is D because the answer is asking about duplicate elements not the duplicate keys. | |
| Kirk said: (Apr 11, 2013) | |
| This is simply a confusingly worded question. If you consider Key/Value pairs as the element then the answer is correct, however if you only care about the Value then the answer is wrong. I got it wrong, but I think that considering the Key/Value pair as the element is probably more correct. I'd still give 1/2 points for selecting Map ! |
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| Gautam Prusty said: (Apr 25, 2016) | |
| Here you have written that, You need to store elements in a collection that guarantees that no duplicates are stored. Which one of the following interfaces provide that capability? Ans- But, Map is not part of the collection, so the answer is (D). |
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| Moiz Nagourwala said: (May 17, 2016) | |
| Can an interface provide any type of capability? I guess we just can't do anything than specifying the contract in terms of methods. So there is no way to forbid duplicate entries as methods are abstract. |
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