TreeSet Details part 5

This Video explains Core Java - Collection Framework | TreeSet Details. Training Tutorial delivered by our Trainer Durga Sir.
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[@umeshmor820]

Simply superb explanations ,Thank you so much sir for all the sessions .Its the the work of scholars like you who can contribute to the society , inspire and help people to learn the things easily.Hope wishes of all your viewers encourages you to keep up the best work ..Thank you so much .

[@snigdhareddy938]

I have read so many articles about comparable and comparator interfaces but unable to understand perfectly. This is the best explanation I have ever read or heard. Hatsoff!!!!!

[@DurgaSoftwareSolutions]

Hi Snigdha. Thank you very much for your feedback

[@gprahalladrao]

No doubt Durga Sir is demo god of Java

[@ManishRajlani]

I hv 4 yrs exp of java but never took interest in collection as it seems to be boring topic earlier..But this time...really awesome. Kindly upload map's tutorial too.
Thanq so much..:)

[@DurgaSoftwareSolutions]

Collection Navigation page (Order of topics)durgajobs.com/durgasir-collectionframework-youtube-videos-with-notes.htmlJAVA FAQS Navigation page (Order of topics)durgajobs.com/Java-interview-questions-by-durga-sir.html

[@rameshteju69]

Durga Software Solutions 404 Not Found

[@418aditya3]

Excellent videos on TreeSet Kudos

[@vaibhavsingh6917]

We can also use Lambda Expression here
TreeSet treeSet = new TreeSet(
(Object o1, Object o2) -> {
Integer i = (Integer) o1;
Integer j = (Integer) o2;
if (i < j)
return 1;
else if (i > j)
return -1;
else
return 0;
}
);

[@jvsnyc]

You certainly can. Venkat S pushes everyone hard to try to only do one-line lambdas, we could still define a function and pass it in as a method reference and make (almost) everyone happy.

[@pagalshaitan6495]

sir please, upload the video on Map and Queue.your explanation is too good.

[@jvsnyc]

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[@thelight_]

Truly Java Guru!

[@akshayudeg9467]

Nice sir you are only JVM❤

[@shrutigoyal600]

JVM is going to dancee ...!!!

[@neerajsharma8610]

Sir, you explain the thing in superb way.
but please upload the video on Map interface and its corresponding classes.

[@DurgaSoftwareSolutions]

Hi Neeraj. Plz contact our online team [e-mail] or call us on this number [phone]

[@mousominath5126]

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[@manishaagarwal5385]

There is a typing mistake happen in notes that t.add(20) when it compare (20,10)--> it'll return -ve value but it mentioned as +ve ..so plz update the notes.

[@priyanshuborthakur7773]

Superb. The way you explain things is simply great.

[@DurgaSoftwareSolutions]

Priyanshu Borthakur
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[@virtuevishnu]

You are awesome sir, God bless you.

[@Zana_sh]

Awesome Sir !!

[@shaileshsingh8413]

Effortlessly good thank you sir...

[@ashwanisingh-dp7ce]

Why tree set has repeated number.. It should have unique value as it implements set interface

[@jayap8355]

Same doubt... Wouldn't it give an error?

[@ajaywankhade5054]

Thank u sir

[@mharisundar1]

Very detailed explanation, really thanks .

[@abhilashkokkonda1713]

Excellent

[@chandansamant07]

Nice trick...for implementing descending..

[@prashantjadaun6952]

only best

[@krish0007]

Awesome..!

[@ravi9516]

Excellent sir!!!

[@DurgaSoftwareSolutions]

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For more videos,
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[@adityasaxena6619]

Sir you said if we add first object then there would be no comparision but it is comparing even for first value also
compare(10,10)
is running
please explain why?

[@DurgaSoftwareSolutions]

Hello Aditya.
Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@rajivraghu9857]

Super Explanation.. :)

[@surveaniket558]

sir, upload the video on map

[@DurgaSoftwareSolutions]

Hello Anil.
Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@aartimali838]

Awesome !

[@vmuralee1061]

Hello Sir,
compareTo() method is from comparable interface and its from java.lang package.
but how you are using compareTo() method in comparator.
how its possible to executed please explain it.

[@chithanurivenkatesh5575]

Hi Muralee.. Let me take this opportunity to answer your question....
As we know that the 'Integer' wrapper class implements Comparable Interface, we can use compareTo() on an 'Integer' class object.
Ex: I1.compareTo(I2); Here, I1 is the object of 'Integer' wrapper class

[@jayap8355]

Sir,
As duplicate objects are not allowed in treeset, then how you took t.add(20) and t.add(20)
Please clear my doubt

[@DurgaSoftwareSolutions]

Hello Jaya.
Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@TheIndianVCC]

How can I get this full course by Durga Sir, Online?

[@DurgaSoftwareSolutions]

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[@rajeshreddyalla7636]

thank u so much...sir really awesome

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Rajesh Reddy Alla
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[@anilkumar-po4qr]

great

[@santruptamishra8314]

In Treeset, duplicates are not allowed, how come 20 is inserted twice?? please explain.

[@shubhammhatre4743]

We have complete control over comparator () . 20 is inserted twice because we added such code. Jvm will blindly follow that code. It won't check for set's basic property.
I hope you get it.

[@chicku975]

How do you arrange 10, 0, 7, 9 in tree set in descending order ?

[@grvlal]

Epic!

[@sanjay-fr5ul]

Sir, in the last section of this video you have shown to add duplicate values by returning +1 or -1
So does it violates basic properties of Set???
Plz reply

[@edwindhina]

sandy1316, you can avoid this by including the below code.
if(integer1==integer2)
return 0;
else
return 1;
this code will eliminate duplicate.
Basic idea is compare() method will do whatever we write in it. It wont mind the basic rule what Set has to follow. simple as that.
Hope it helps you/

[@jitendravarshney7918]

really supereb

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jitendra varshney
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[@thanujames1668]

Can u provide the link for map tutorials

[@DurgaSoftwareSolutions]

Hello Thanu James.
Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@ranirawat9810]

sir please can you tell, even though in mycomparator class you only implements comparator interface. then how you are directly using compareTo() method of comparable class. For using compareTo() method dont you need to implements comparable interface. It seems bit confusing to me.

[@PawanKumar-zb3lu]

@RANI RAWAT actually he is using compareTo() method with Integer object and all Wrapper classes and Strings implements Comparable interface and compareTo() method is public so directly can be used....Hope this will help u

[@SUNNY143CHANDU]

thankyu sir

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Sunil kumar
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[@rahulkad5392]

Sir here only 10 insert what is the error there

[@DurgaSoftwareSolutions]

Hello Rahul.
Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@jayneshahir8815]

if mycomparator class is using compareTo method shouldn't it have to implement comparable interface ??

[@Bigdaddy91982]

I'm learning too, according to my understanding,
we are implementing the Comparator interface from the java.util package and the Comparator interface has two methods defined, they are compare() and equals(). Therefore, you are implementing the compare method that is already defined in the comparator interface.
If you don't need a custom sorting technique, JVM uses compareTo() internally to sort the entities and you don't need to implement comparable interface.
Hope this helps!

[@jayneshahir8815]

Vamshi Gudipati yes thats true but I got the correct answer which is all the wrapper class and string class already implements comparable interface which contains compareTo method.😊🤗

[@khushgandhi6638]

👌👌👌👌💗

[@rahulkad5392]

Plz sir reply

[@DurgaSoftwareSolutions]

Hello Rahul.
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[@rexsam3134]

JVM is a blind person.....

[@JayHulageri]

AWESOME !!!

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Jay Hulgeri
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Durga Software Solutions
Hi,
We are very Happy to say Our Expert Faculty Durga Sir's One-to-One Video Sessions on "Core Java with SCJP/OCJP"
are available. Shooted from direct Class Room. YOu can access these videos from anywhere anytime. Around 200+ hours
training, 178 Videos with clear explanation on every concept. 100% Satisfaction and Perfection in Subject guaranteed.
For Demo Sessions Please call or drop a mail to us...
DURGASOFT Online Training
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