Java Collections Framework-Part9 | Map & HashMap Concept | Hands-on

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  • Опубліковано 7 лис 2024

КОМЕНТАРІ • 135

  • @laxmikambar7610
    @laxmikambar7610 6 місяців тому +1

    Thank you sir

  • @gokulm6299
    @gokulm6299 Рік тому +1

    Thank you sir...

  • @hmkdbambaragama7432
    @hmkdbambaragama7432 Рік тому +1

    thank you

  • @preetamvarun9219
    @preetamvarun9219 9 місяців тому +1

    Thank you sir!

    • @sdetpavan
      @sdetpavan  9 місяців тому

      You are welcome!

  • @jean-paulboga8189
    @jean-paulboga8189 10 місяців тому +1

    my favorite teacher...you know Java sir big respect .

  • @ambativenkatalaxmi9797
    @ambativenkatalaxmi9797 8 місяців тому +1

    Nice sir

  • @MentesIntrigantes-js6it
    @MentesIntrigantes-js6it 11 місяців тому +1

    you are the best

  • @omkarpharate9530
    @omkarpharate9530 2 роки тому +1

    Pavan sir==Trust

  • @technobuddyentertainment1101
    @technobuddyentertainment1101 Рік тому +1

    thank you sir,,,,i understand clearly.

  • @Rocky-t4c
    @Rocky-t4c 2 місяці тому

    to the point explaination no lagging only clear explaination very much thank u sir

  • @aswinsrikanth408
    @aswinsrikanth408 Рік тому +1

    Very well explained Sir
    Thank you Sir!!

  • @rahulkotian3535
    @rahulkotian3535 2 місяці тому +1

    Superb best channel for Java on UA-cam

  • @8073-z6w
    @8073-z6w Рік тому

    thanks a million sir.

  • @sureshgeddada6166
    @sureshgeddada6166 Рік тому +1

    Very useful video on collections work, thank you sir

  • @venkatapathibatchu1783
    @venkatapathibatchu1783 3 роки тому +1

    Thanks Pavan

  • @anupamr437
    @anupamr437 Місяць тому

    Just for my note:
    Hashmap is a class implementing Map interface.
    Hashmap implements Hashtable data structure.
    Entry interface is nested interface of Map interface.

  • @sarah-fu6hw
    @sarah-fu6hw 3 роки тому +1

    thank you sir very good explanation

  • @akshayavenkatesh3793
    @akshayavenkatesh3793 3 роки тому +1

    Best explanation

  • @gayathrichittaboina2775
    @gayathrichittaboina2775 Рік тому +3

    thank you so much for this wonderful treasure sir!🙏

  • @pragyasharma9642
    @pragyasharma9642 2 роки тому +1

    you r just awsum thank u so so so much i have been searching for this for so long ... bt now i find the right place ........ thank u so much sir

  • @pradeep492
    @pradeep492 9 місяців тому +1

    Vedios are good,with detailed explanation. I would suggest to make wordings corrections,like in map you said new record is repalced with old record when you add new entry with duplicate key and different value.But actually it is old record is replaced with new record.

  • @dineshahuja848
    @dineshahuja848 10 місяців тому +1

    Very detailed video. brilliant tutorial on Map and HashMap. Only minor change i found out Entry Interface is sub set of Map interface. but in this tutorial it is mentioned as part of HashMap.

  • @kennyi1200
    @kennyi1200 3 роки тому +1

    Thanks

  • @nikeshkumar-gl1fv
    @nikeshkumar-gl1fv 3 роки тому +1

    Amazing explanation

  • @sasireka7974
    @sasireka7974 3 роки тому +1

    Yr way of teaching is awesome

  • @myvoice4407
    @myvoice4407 Рік тому +1

    Hi sir,
    At last step using iterator method
    While(itr.hasNext())
    {
    //i simply wrote like this
    System.out.println(itr.next());
    }
    And then o/p is
    101=john
    102=david
    103=scott
    104=mary
    105=tye
    So we can write like this no instead of writing map.entry all those

  • @aarunkumar
    @aarunkumar 2 роки тому +1

    Thank you sir for collections framework classes vedio series

  • @anitagola4794
    @anitagola4794 4 місяці тому

    Sir apki teaching techniques bhut achi hai mera 11 sal ka gap ho gya hai mca complete hote hi meri marriage ho gyi to me job ni kr payi isliye 11 sal bad mene apki video dekhkr sb kuch fir se sikh liya thanku sir🙏 ab shayad me job le sku it company me

  • @bireswaradhikary2757
    @bireswaradhikary2757 2 місяці тому

    27:00
    I think Entry SubInterface of Map (I(

  • @prasaddevathi09
    @prasaddevathi09 2 роки тому +1

    Neatly Explained.

  • @dharmendramakineni
    @dharmendramakineni 3 місяці тому

    Sir , I have a doubt. How Entry interface can be child of HashMap, Since HashMap is a class right ? Entry is child interface of Map right ?

  • @prikshitverma3885
    @prikshitverma3885 4 роки тому

    Thank you sir

  • @BrainblastHub
    @BrainblastHub 10 місяців тому

    I wish you could also cover hashcode and equals method explanation

  • @priyadarsinisahoo2544
    @priyadarsinisahoo2544 7 місяців тому

    Sir HashMap is a class but you told in starting of Entry(I) like
    Interface HashMap{
    Interface Entry {
    }
    }
    It's like bit confusing me .

  • @nandiniraj6206
    @nandiniraj6206 2 роки тому +1

    Well explained 👍

  • @anitagola4794
    @anitagola4794 4 місяці тому

    Sir kya possible hoga esa gap ki wajah se koi problem to ni hogi

  • @Tommy-km4wo
    @Tommy-km4wo 2 роки тому +20

    The detail is amazing. More than I learned in class. Thanks!

  • @sanjiwanipole3666
    @sanjiwanipole3666 2 роки тому +1

    Explanation is superb and no unwanted talk in between the session...

  • @himanshusingh5118
    @himanshusingh5118 3 роки тому +1

    *Difference between Print result of:*
    m & m.entrySet ?? (same)

  • @sajalkumar9649
    @sajalkumar9649 Рік тому

    why is it written hashmap interface. it is a class right??

  • @emonyousufy5670
    @emonyousufy5670 4 роки тому +1

    Nice seeing you sir!

  • @rajkumarm25
    @rajkumarm25 Рік тому

    Please tell us the exact return type of entrySet. Google is confusing me...

  • @amlam5685
    @amlam5685 3 роки тому +39

    I bet no one will google about Map, hashmap, and Entry after watching this video.
    Thank you for these amazing explanations and clarification, you are the Best SIR.God bless you

  • @chandrashekarreddyyeradla9177
    @chandrashekarreddyyeradla9177 2 роки тому +1

    HashMap is not interface it is class
    Entry is not sub interface of Hashmap
    Sub interface of Map
    Map.Entry

  • @ashutoshanand69
    @ashutoshanand69 4 роки тому

    Nice sir

  • @alexnigus6572
    @alexnigus6572 Рік тому

    Your is explanation is superb.i want to ask you on duplication of the key ......................i try to duplicate the key and i try to run the ouput will be updating the key . why???

  • @sindhusudhakaran1731
    @sindhusudhakaran1731 3 роки тому +1

    Awesome video !! Thank you very much

  • @anayapathak7162
    @anayapathak7162 2 роки тому

    Being a C++ programmer, i watched this video just before my java coding round. Feeling quite confident.

  • @yogeshganpule2695
    @yogeshganpule2695 9 місяців тому

    Now can we get some coding challenges and how to approach them with collections @SDET-QA

  • @raji1358
    @raji1358 4 роки тому +1

    thanks for awesome tutorials.

  • @yaswanth2332
    @yaswanth2332 Рік тому

    you must have also added the concept of comparable and comparator interfaces in this collections tutorial.

  • @jayasree2033
    @jayasree2033 2 роки тому +1

    You are the best teacher.I am learning a lot through your videos.The first thing I am going to do after getting job is joining your channel.
    Thankyou for all these efforts for us.You deserve more subscribers.

  • @akshaybhatia7977
    @akshaybhatia7977 3 роки тому +4

    I really found this very helpful tutorial to get your basics clear on HashMap. Thank you for creating this content.

  • @seenuvlr
    @seenuvlr 3 роки тому +1

    Extraordinary explanation. 🙏

  • @jasper5016
    @jasper5016 3 роки тому +2

    Do you have any tutorials on Java Lambdas or Streams?

    • @sdetpavan
      @sdetpavan  3 роки тому +1

      yes. plz check playlists

  • @vannarsai4065
    @vannarsai4065 2 роки тому

    Where your learn this so much of stuff?

  • @hennymakaveli
    @hennymakaveli 4 роки тому +6

    Thanks for the tutorial? What’s is the best time to use Queue in automation and any tutorial on other classes that implement queue interface? Can you help us with converting Map to Map ?

  • @explorersbasichunt4117
    @explorersbasichunt4117 3 роки тому +3

    Sir, can we add single key & multiple values in hashmap?

    • @sdetpavan
      @sdetpavan  3 роки тому +1

      Yes. but you can store multiple values as a single object.

  • @abhijeetdhumal1217
    @abhijeetdhumal1217 3 роки тому

    30:55 Demo Practical

  • @imbhavaniprasad
    @imbhavaniprasad 3 роки тому +1

    but you told hashmap a class and again saying entry is child interface to hashmap interface?

  • @Shwethatp
    @Shwethatp Рік тому

    Sir what about TreeSet?TreeSet is also a class which implements set interface right?

  • @jasper5016
    @jasper5016 3 роки тому +2

    This is the best explanation for Map and HashMap. Very detailed and concise. Thanks a lot. Subscribed.

  • @Manojdeevi1997
    @Manojdeevi1997 2 роки тому

    How to give dynamic value in hashmap in java

  • @Raj-ql2vz
    @Raj-ql2vz 2 роки тому +1

    you are repeatedly saying hasmap is an interface , while explaning about entry interface

    • @Oscar-x3m
      @Oscar-x3m 4 місяці тому

      Yes, HashMap is a not a "Interface"

  • @sharmanit3051
    @sharmanit3051 2 роки тому

    Hello Sir,
    Why is Hashmap an interface at 26:18? It should be an implementing class.

    • @UdayKiran-xx8wt
      @UdayKiran-xx8wt 2 роки тому

      just a little mistake, yes its not HashMap it is actually Map interface inside it contains that Entry interface

  • @rajansethi6767
    @rajansethi6767 Рік тому +1

    At 26:38 you said under Hasmap Interface entry Interface exists , earlier you said Hashmap is a class, please clarify that point.

    • @harindersinghgusain9372
      @harindersinghgusain9372 10 місяців тому

      yes that is the same question from my side Hashmap is interface is this correct and also entry is subset i did not get this point . Can you please explain little bit confusing here .
      Thanks in Advance

    • @priyakrish7433
      @priyakrish7433 8 місяців тому

      Entry interface is nested interface of map interface not hashmap. Hashmap is class

  • @omgfinishers7405
    @omgfinishers7405 4 роки тому

    Hello Hope you see this comment .....
    I am new to automation testing and just have switched from development to Automation Testing.....
    I know my question might be stupid and baseless but as a fresher in Automation/SDET I always wonder about this as I want to continue growing in the automation field and which is what motivated me to switch from development....But this one question always keeps me down and bothers me a lot in my path....I dont know why but my developer friends always tell me "You should be in development as the focus more now is shifting towards developer doing everything rather than having a separate qa automation sdet ....Developer also does some automation in some companies .....This is what my friends tell me and which bothers me a lot .....I igonre them But as a human having little experience in automation what is your take on this? I know this might be a stupid question that only a fresher can think of but my friends always warn me that future is more towards the developer doing everything and no separate tester will be required.....I 100 percent dont want this to be true as I love automation but one time I want to listen to your thoughts on this and clear my stupid doubt(even if this question pisses you off) You are my teacher so I ask you as a student the reality of this
    (I have gone anonymous because I am ashamed by my own question )
    If you read this please reply ......🙏🏻

    • @peterbet6487
      @peterbet6487 3 роки тому

      Your friends could be right because with the rise of Agile methodology and the extensive skills a technical QA possesses, there would be little difference between QA and Dev down the line. It is trending that way. With that said, QA industry is not disappearing abruptly. In fact, IT job market is so volatile that today's dev skills won't be sufficient with the rise of AI. So, don't panic. Whichever industry you like, grow in it.

    • @NuanDaa
      @NuanDaa 2 роки тому

      Dude if you don't want to work like a nerd stop to do that. Don't think over and over about that and just change your line that's it.

    • @Forty3Stories
      @Forty3Stories Рік тому

      This question was asked 2 years ago and I would say the demand for automation testers are more still. Keep learning 😊

  • @prikshitverma3885
    @prikshitverma3885 4 роки тому

    How can i find the other videos related to selenium with java...I m kind of new

    • @sdetpavan
      @sdetpavan  4 роки тому +1

      Please check playlists

    • @prikshitverma3885
      @prikshitverma3885 4 роки тому

      @@sdetpavan THANKS sIR! i AM FOLLOWING YOUR VIDEO FOR MANNUAL AS WELL SIR!!!..AFTER COMPLETING THEM I WILL MOVE TO SELENIUM WITH JAVA!!

  • @basweshwaramlapure8807
    @basweshwaramlapure8807 2 роки тому

    hi Sir, Very nice video, you are doing a very good job, Thank you.
    How can we update the value for a specific key ?

  • @abhisheksamantray5244
    @abhisheksamantray5244 2 роки тому

    hello sir, can I extract all the keys value, like[101,102,103,104], using (for) loop, not using (for each) loop, Please replay sir🙏

  • @indeepaherath6920
    @indeepaherath6920 2 роки тому

    sir is there a way to create a list of maps or Map with collection of maps?

  • @ashutoshanand69
    @ashutoshanand69 4 роки тому

    Sir how can i found selenium tutorial

  • @mudunurisaikrishnamraju5275
    @mudunurisaikrishnamraju5275 4 роки тому +2

    Ur explanation is superb 👌. Can u pls cover full core java and data structures.

  • @sanghamitramishra6169
    @sanghamitramishra6169 Рік тому +3

    I was worried to switch automation QA after having 14 years of functional QA. After going through your videos I think the best trainer you are in this world ..concepts interview Q & A everything you make so easy for me now ...Thank you so much sir..

  • @peterbet6487
    @peterbet6487 3 роки тому +18

    Somewhere in between, 26-27 min, you said, HashMap is an Interface and Entry is sub-interface of HashMap. But isn't HashMap a class ? It is not an Interface and Entry is an interface that implements Map interface not HashMap. Could you please clarify for your students ?

    • @kavin2758
      @kavin2758 2 роки тому +2

      I'm stuck on this while watching, and thanks much for the clarification.

    • @udaykumar-ur2ug
      @udaykumar-ur2ug 2 роки тому

      TQ I'm confused at this time TQ for clearification

    • @abhay6276
      @abhay6276 2 роки тому +1

      Please clear me in easy way...still i am confused...

    • @subhajitchakraborty8724
      @subhajitchakraborty8724 2 роки тому +2

      Exactly
      Map(interface)>>>HashTable(class)
      >>>HashMap(class)
      Map(interface)>>>Entry(interface)

    • @abhay6276
      @abhay6276 2 роки тому

      @@subhajitchakraborty8724 ok....means entery is a subset of map interface...m i right...?
      What is implement.. ? Please reply sir

  • @SatishAddala
    @SatishAddala 4 роки тому

    Pavan sir, any idea on Qmetry automation framework?

  • @rahulkantjha
    @rahulkantjha 3 роки тому +1

    Your content is superb and personally I've learnt so much from your videos.
    Just an advice.
    For 15 mins topic you take 1 hour.
    If you want to increase your subscribers and views please make short videos.

  • @rachelbhoy9563
    @rachelbhoy9563 Рік тому +1

    superb explanation

  • @noncopyrightmusics3798
    @noncopyrightmusics3798 Рік тому +1

    superb explanation