1207. Unique Number of Occurrences || In JAVA || Leetcode Problem || Easy

Hello Friends,
here I have discussed a leetcode problem. I solved this in JAVA.
I hope this video will help you.:)
Feel free to ask if you have any questions and you can give me any suggestions that I can improve!
Thanks for watching!
Leetcode Problems:
• Leetcode Problems #lee...

[@quicklearninigwithsree]

Code:- class Solution { public boolean uniqueOccurrences(int[] arr) { HashMap hm = new HashMap(); for(int i : arr){ hm.put(i,hm.getOrDefault(i,0)+1); } HashSet hs = new HashSet(); for(Map.Entry e : hm.entrySet()){ if(!hs.add(e.getValue())){ return false; } } return true; } }

[@rajnishsingh2864]

👌