Frequency of each element in an array using hashMap | O(n) time complexity

Frequency of each element in an array using Hash Map.
Time complexity: O(n) time complexity.
=================================
Other related videos:
Frequency of each element in an integer array | Brute force
• Frequency of each elem...
#JAVA

[@bibhasahu7378]

very nice 👏

[@tejalycan1772]

perfect explanation. Mind blown🙏🙇‍♀

[@rajat-s-kale1771]

Thank you so much for this explanation , it helped me alot;

[@ambarishshiva7167]

Thank you so much.crystal clear

[@TechnosageLearning]

Thank you😊

[@Ha-su2in]

thank you for this video. how to calculate the frequency of repeating elements in separate groups in an arraylist. for example { 2, 4,4,5 ,3,7,7, 2,2, 5,5 } frequency 5 is 3: 1 and 2, and I want to know also the index of each element

[@TechnosageLearning]

Will make a separate video on that

[@deliveringIdeas]

Thanks

[@user-kb1fk7cd6w]

how to use this method when user input the array size and values? is that possible? pls rwply

[@azimrahman3584]

thankyou and after getting the frequency the write the total of frequency

[@karankumar4384]

for c++?

[@tejasukalkar2199]

one doubt where did you initialise entry set in this code?

[@TechnosageLearning]

You don't need to initialize the entry set...Just create the object of Hashmap and you can call the function entryset of Hashmap. Hashmap hm= new HashMap() hm.entryset()

[@vivekgupta9115]

How to pass value by the users

[@TechnosageLearning]

Hello Vivek, You can use scanner class in JAVA to pass value by user.

[@vivekgupta9115]

Thank you

[@jitmondal3933]

video cam on karke padhaiye..... jeda man lagega padhai mei.