Which class has no duplicate elements?
- 8 Answers
- 13524 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / ranganathkini
The java.util.Set interface and related implementations dont
support duplicate elements.
| Is This Answer Correct ? | 13 Yes | 0 No |
Answer / ramanareddy333
in java .util package there is one interface (set interface)
that interface does not allows the duplicate values.that
interface implementations class are
hashset,treeset....these classes don't allow the duplicate
values.
| Is This Answer Correct ? | 9 Yes | 1 No |
Answer / shweta
set wont allow duplicate element all the classes implementin
set interface wont allow for eg HashSet TreeSet
Hash map will allow for two different key u can have same value
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / neeti
the set inteface does'nt allow duplicate
elements.therefore,the add() method return false if an
attempt is made to add duplicate elements to a set.
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / venkatesh
Which one will not allow duplicates, is it HashMap or
HashTable? Please explain the corect answer with an
example. Thanks in advance
| Is This Answer Correct ? | 3 Yes | 1 No |
Answer / rajesh
hashset,treeset....these classes don't allow the duplicate
values.
| Is This Answer Correct ? | 2 Yes | 2 No |
What is the platform?
How to overcome the exception object reference not set to an instance of object?
Is it compulsory for a try block to be followed by a catch block in java for exception handling?
What is a instance variable?
What are use cases?
What code optimizations techniques you follow in general practice?
2 Answers Accenture, TCS, Wipro,
How thread scheduler schedule the task?
Enlist diffrent types of inheritance supported by java?
What are the benefits of immutable objects?
How do you define a singleton class?
How to add and remove nodes in Jtree?
What is function overriding and overloading in java?
Core Java 
