Core Java With OCJP/SCJP: Collections Part-8 || TreeSet

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[AbhilashKorraprolu]

27:45 Durga sir also explains that null is not valid from V1.7. I think people in the comments have not seen the entire video before commenting.

[mohanrajsenthilnathan]

Thanks for the video

at 21:28, adding null values at first in treeset was possible until 1.6, but not from 1.7.

it was considered as defect and java fixed it. now we cannot add null value even at first.

[dineshhase]

Comparable interface is implemented in stringbuffer after java 11..just for info

[ranveervaghela]

Completed watching on Oct 07, 2024 at 5.45 PM :) :)

[shilpivajpayee]

Dear Sir i tell you why its giving 25 nd -15 because according to unicode system.. Obj2 is comparing to obj1 so z is 90 which is comparing to A which is 65. Hence 90-65=25. Same as next line k is comparing to z , 65-80=-15.
A is comparing itself so 65-65=0.
Hence proved.
Thankyou.
Apart you r expert! N i like the way you teach us. Thankyou sir for being a good teacher. Its very helpful videos.

[prabhattiwari]

In java version 15 (A.compareTo(null) )
Gives -ve value

[akashkumargupta]

In java version 11, StringBuffer implements comparable and we can get o/p as String .as sir discussed in 39:00 o/p will be a, b, l, z; is it true???

[EngineerVaibhav]

Highlights❤

1.From 1.7V on words null insertion is not possible in TreeSet and its not recommend to insert null as the value inside TreeSet because we cant perform any operation on null. ❤

[akashkumarrout]

Sir in the video Title add a keyword as "Comparable"

[EngineerVaibhav]

In today's Java versions StringBuffer and StringBuilder also implements Comparable interface. 🎉

[Rakesh]

Hi. My doubt is as you said hetrogenious data is not allowed in tree set. But when we use constructor to create treeset object using collection c constructor. Wht will happen when in list i have hetro data and converting into treeset.

[-AjayChauhan]

Completed this video
Day 64 of #75daysofcode in Java
19 May, 2024

[faizanali]

now StringBuffer is comparable in 11.0.2

[rahulkumar-swjq]

it is very helpful, thanks for that. one suggestion could you please improve audio quality while on coding practice.

[aanpudur]

java 1.5, it gives empty treeset. No runtime error.

[paruljjmmm]

StringBuffer implements Comparable now

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[sonamprajapati]

Sir how to understand obj1 which is to be inserted...and the obj2 which is already inserted ...???

[MohitKumar-jonj]

Do String builder implements Comparable interface?

[dinkarinjosh]

I am able to add StringBuffer in the TreeSet, how is it possible? Btw using java 11