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My Laptop For App Development - https://amzn.to/3PlIqVQ How To Remove Duplicate Elements From Array list RecyclerView #Firebase #Android #Java Hindi #hashset #linkedhashset

Basic Java 4 Android Playlist -
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Using Hash Set -
A better way (both time complexity and ease of implementation wise) is to remove duplicates from an ArrayList is to convert it into a Set that does not allow duplicates. Hence LinkedHashSet is the best option available as this do not allows duplicates as well it preserves the insertion order.


Get the ArrayList with duplicate values.
Create a LinkedHashSet from this ArrayList. This will remove the duplicates
Convert this LinkedHashSet back to Arraylist.
The second ArrayList contains the elements with duplicates removed.


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