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#8 - What is HashMap? How to iterate HashMap?

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#HashMap #NaveenAutomationLabs
In this video, I have explained what is HashMap, basics properties of Hashmap and how to iterate Hashmap using various methods.
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Опубликовано:

28 авг 2024

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Комментарии : 39

@pratimsarkar8421 2 года назад

I am gratified by the way you speak out, dismantling each line while you code and that clarifies every doubt one could face. Your way of teaching is fabulous, I am beginning in Core Java and I am glad to have found your channel after struggling through the net for days for some explanations that made sense to a beginner like me. Keep up your great work Mr.Naveen!! :)

@shivambhardwaj3273 2 года назад

Thanks a lot for this video. I was struggling with hashmap iteration for few days. But now I can do that seamlessly.

@riddhishah3623 2 года назад

I was very much confused about HashMap, but by seeing your video its clear. It has detailed explanation in simple words. Thank you Naveen. Keep adding such valuable contents.

@aparnabhosale7483 5 месяцев назад

sir u r explaining in so easy way..thnku so mch

@azhargayawi 2 месяца назад

maza aa gaya, thanks sir,.

@rushikeshdarade706 Год назад

Still on top, appreciable content sir

@kalyaniacharekar4808 2 года назад

Thanks Naveen, I'm Loving this series.. Thanks a ton ..😊

@som_girl6702 3 года назад

You are an amazing teacher. Very detailed explanation with clear examples. You make learning easy

@naveenautomationlabs 3 года назад

Thanks for watching :) glad that you liked it

@k.ravichandra1049 2 года назад

Excellent explanation 👌 👏 NAVEEN bro, keep up the good work.

@sauravhateme 3 года назад

I was just learning this one!!! Thanks for sharing.

@ankeshkumar1299 3 года назад

A useful one. Thanks for sharing. Hope this HashMap series help me in my Excel Data fetch logic. I have always had a doubt on this part. Thanks once again Naveen :-)

@tauseef20091 2 года назад

Great video. Crisp and detailed..

@divyajain3263 3 года назад

Much needed video. Thank you sir. Also, Can we also get video on how to create Rest Api using lambda in ## "JSON" format. ##

@dhavaldevangada2877 9 месяцев назад

Thanks

@jagannathgaidhani5333 2 года назад

great work bro, keep doing it, thanks

@sureshgarine 3 года назад

traverse over java 8 stream is good to know. Thanks, Naveen. can u create a video on a complex hashmap where the key is string and the value may be another collection like ArrayList or another map? and traversal over this kind of map

@sureshchavan8631 3 года назад

Hi Naveen, Thanks for the great video series, this is very useful. One request i have, like can you please share the notes in pdf or doc format ?that would be very helpful😊.

@baubaudinamo 3 года назад

Very good explication!

@azhargayawi 2 месяца назад

charan sparsh.

@ChethanCP 2 года назад

Awesome sir

@tapaskhandai 3 года назад

Hi Naveen, Could you please upload a video regarding java program ,how to find maximum, minimum,2nd maximum character occurrence in a string.

@arnavpatil583 3 года назад

Thanks naveen

@sakshiaggarwal6199 3 года назад

Thank you so much Naveen 😇

@naveenautomationlabs 3 года назад

My pleasure 😊

@ARCHIT980 3 года назад

Hi Naveen, Thanks for the great video. I have one question: As you have mentioned we can't have a duplicate key in the hashmap but in case we are having duplicate keys the value corresponding to that key gets changed when the second duplicate key comes. The Same you have demonstrated with NULL as the key. It overrides Berlin in your case with LA. So I meant to say in case I have duplicate keys and multiple null keys it won't be a problem while storing in Hashmap.

@tapaskhandai 3 года назад

Hi Naveen, is there any method where i will pass value and get the corresponding key in hashmap. Ur reply will be highly appreciated.

@sarithabommi1974 3 года назад

Not able to find GITHUB link for collections , could you please share naveen. Thank you so much for the videos .

@anilrautela5260 2 года назад

At 13:26, now it's taking Map.Entry rather than Entry. Is it got obselete? Iterator it1 = capitalMap.entrySet().iterator();

@staslocovai 2 года назад

Hi Naveen . on line 38 i get : type mismatch cant convert from boolean to String . And if i change the type to boolean then the output is infinite with key = true , value = null .. Help ..

@nibeditajinu 3 года назад

Thank you!

@bengalichic9333 3 года назад

can we use the .foreach() w/ lamba method in java 11?

@vineetpant6119 3 года назад

Hi Naveen , what is meaning of hash in HashMap, why we called it HashMap,HashTable?

@Footballs_Untold 3 года назад

its cool name

@manishjaiswal7768 3 года назад

becouse Hashtable , Hashmap HashSet are using hashing data structure for store the data All are implements hashCode( ) method to genarate a unique number for each object this hashCode method is Object class method And according this hashCode data store into particular index and index also generated according to hashCode of object .