#6 - How to Remove Duplicate Elements from an ArrayList using LinkedHashSet & JDK8 Streams

#JavaCollectionFramework #ArrayList #NaveenAutomationLabs
In this video, I have explained, How to Remove Duplicate Elements from an ArrayList using LinkedHashSet & JDK8 Streams.

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[hiteshpachakawade]

Thank you for this video sir.
Looking forward for complete series.
I watched all videos from this series till now.

[vasanthjayakumar]

Informative! thanks for the video, Naveen!

[swarnasharma]

Very informative video... It would be helpful if you could explain while making video about the scenarios where we can use these concepts in web testing...

[jayeshkumar]

It's very easy Naveen sir clearly understandable wow

Thank You

[tripurnachary]

Second method is more useful and kindof update to the market standards ✊🏼

[KaisarAnvar]

Full support, upload more please <3 thanks you so much sir

[sourovrahman]

both are very good approach and I have no doubt on that ..I applied this on both HashSet an LinkedHashSet and it works .The difference is only insertion order where LinkedHashSet preserve insertion order .but why you mention only LinkedHashSet why not both??? is there any other issue Mr Naveen ??thank you very much.

[vijaykaushal]

Hello Naveen,

Thanks a lot for sharing your knowledge.

Just one query I have one.. any specific reason for choosing LinkedHashSet over HashSet, as this can be done using HashSet as well.

Kindly let me know..
Thanks in Advance!!

[kunalbiswas]

First of all super content . Learn something new everytime i start a playlist :)
I faced the same question in hacker rank . i used 2 for loops to iterate and remove the duplicate elements from the Integer arrayList, but the code could only pass 7 out of 10 data input scenarios . But if i use the any of 2 methods in video all 10 data input scenarios are passed . Could you please explain as to how using these 2 methods would handle any sort of input as compared to using regular for loops .

[rishabagrawal]

Thank you Naveen
If we print object of linkedhashset even then we are about to remove duplicate values. Why do we create new arraylist again ?

[supteue]

Sir here as we use LInkedHashSet on ArrayList
Should the order be maintained or not?

[doublehit]

I have a query.
why use LinkedHashSet.
why not HashSet ? hashset has better performance in retrieving elements.
Any specific reason ?

[TrickShotHeroes]

if i want to prinnt duplicates how to do that

[socialmedia]

do we have to use LinkedHashSet, or can we just use HashSet?

[maneeshbuddha]

without creating arraylist after linkedhashset, we are geeting result in sysout.

[SameerKumar-yuxi]

Hello Naveen.... In 1st approach we can also use HashSet right ..
The only purpose of using LinkedHashSet is to maintain output in ordered....right?
Or any other reason are there?

[priyotoshmaji]

But why linkedhashset not only hashset can you explain pls?

[ramasudha]

can you explain about passing parameters sir

[kapilrana]

Hi Brother, Just one query why can't we create an object of HashSet... I mean:
ArrayList<Integer> remduplicate = new ArrayList<Integer>(Arrays.asList(1, 2, 3, 4, 5, 1, 2, 3, 4));
Set<Integer> uniqset = new
ArrayList<Integer> uniqueArlist = new ArrayList<Integer>(uniqset);
System.out.println("Unique value in array list " + uniqueArlist);

Any specific reason to create an object of LinkedHashSet??

[blablagswjsvsns]

We can use hashmap . It's not better than these 2 ways but we can use that too.😀