Core Java With OCJP/SCJP: Collections Part-13 || sortedmap

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[honeysharma]

Thanks a lot sir. On teacher's day I really want to thanks you for everything you are doing for your students. You made my study interesting and easy to understand. You are very nice person.

[sireeshargs]

Thank you very much..I had ever seen such a great scjp faculty 🙏

[BackBencher-zg]

As of Java 1.8 version - Inserting null key into empty or non-empty TreeMap is not allowed, otherwise we will get runtime exception saying NullPointerException.

[yatendrasharma]

Thank u sir for giving us a better knowledge...really u are the actor of java .i'm a big fan of u and ur notes..once again thank u so much sir..
and sir i hava a question that what is the internal process of linkedhashmap and hashtable.
i know sir that this question's answer is available everywhere on the net but i want to know answer of this question from u because of ur concept.

[aishwaryasanjayjadhav]

keep supporting🥺....is an emotion❤...sir your support has made life easy. Thankyou soooo muchhh😇

[ranveervaghela]

Completed watching on Oct 10, 2024 at 01.54 AM :) :)

[nanithakumaribasvani]

Hi sir,
Thanks a lot for sharing better knowledge. Sir kindly upload the videos about Lambda Expressions and Spliterator interface.

[navdeeptanwar]

SIr,
i am looking for more programmes to implement all java related concept do you provide any notes about programming or could u pls tell me which book i should refer to implement more programmes in java

[priyankachakrabarty]

Hello sir, can u provide a details video for linked list how to create node and all, or if its there can you provide the link, i am unable to find that

[IMPROVETHEBASICSashokachary]

Sir, even in customized sorting order only sorting is customized but heterogeneous keys are not taking, like combination of int and strings keys. (10, 20 xxx, yyy, zzzz) these are all heterogeneous keys . plz help me on this

[saithejamacharla]

If we depend on our own sorting method then you said that keys need not to be homogeneous and non comparable then how can we compare with out same data type for sorting??

[Dream_Biggg]

Hi, is study material available of this playlist ?

[Nimesh]

public class WeakHashMapDemo {

public static void main(String[] args) throws Exception{

WeakHashMap m = new WeakHashMap();
Test t = new Test();
m.put("abcd", t);
System.out.println(m);
t=null;
System.gc();
Thread.sleep(2000);
System.out.println(m);
System.out.println(t);
}
}

output:
{abcd=Test}
{abcd=Test}
null

If we keep Test as a key then that object is garbage collected but if as a value then it is not garbage collected.
can u explain why?

[ravi]

Awesome sir. Any video on hashcode and equals contract?

[srliam]

Thanks Apu, btw where's manjula ?

[xypq]

can we get sorting based on value? Thanks!