Removing duplicate Sets from List

Removing duplicate Sets from List

By : dammysnow
Date : November 22 2020, 11:12 AM
fixed the issue. Will look into that further I am trying to remove duplicate Set of custom objects from ArrayList. Below is the code I have written which uses toString representation of custom EmployeeObj to compare. Can you please suggest what other approaches can be taken? , Try this solution:
code :
private boolean equals(Set elements, Set elements2) {
    return elements != null && elements.equals(elements2);

private List<Set> removeDuplicates(List<Set> from) {
    List<Set> noDuplicates = new ArrayList<Set>();

    for (Set possibleDuplicate : from) {
        boolean alreadyInNoDuplicatesList = false;
        for (Set elementFromNoDuplicateList : noDuplicates) {
            if (equals(elementFromNoDuplicateList, possibleDuplicate)) {
                alreadyInNoDuplicatesList = true;
        if (!alreadyInNoDuplicatesList) {

    return noDuplicates;

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Removing Duplicates from a list of sets

Removing Duplicates from a list of sets

By : Bryan Linn
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Unique() removes all consecutive duplicate elements from the container. So need to do sort mylist first before run unique().
code :
removing duplicates of a list of sets

removing duplicates of a list of sets

By : Pathgeek
Date : March 29 2020, 07:55 AM
I hope this helps you . The best way is to convert your sets to frozensets (which are hashable) and then use set to get only the unique sets, like this
code :
>>> list(set(frozenset(item) for item in L))
[frozenset({2, 4}),
 frozenset({3, 6}),
 frozenset({1, 2}),
 frozenset({5, 6}),
 frozenset({1, 4}),
 frozenset({3, 5})]
>>> [set(item) for item in set(frozenset(item) for item in L)]
[{2, 4}, {3, 6}, {1, 2}, {5, 6}, {1, 4}, {3, 5}]
>>> from collections import OrderedDict
>>> [set(i) for i in OrderedDict.fromkeys(frozenset(item) for item in L)]
[{1, 4}, {1, 2}, {2, 4}, {5, 6}, {3, 6}, {3, 5}]
removing duplicated sets from a list in r

removing duplicated sets from a list in r

By : jyothi mandal
Date : March 29 2020, 07:55 AM
Hope this helps I have a list of vectors, where each vector contains the same number of character strings, e.g. , may be this
code :
unique(lapply(LL, sort))
Removing Duplicate from Arraylist and Getting the duplicate of one property in a list

Removing Duplicate from Arraylist and Getting the duplicate of one property in a list

By : Alan Capil
Date : March 29 2020, 07:55 AM
it should still fix some issue i have one arraylist say "templist" it will have items of item say "Stool" , Create a set from your list will remove the duplicate, ex:
Removing duplicate interaction pairs in python sets

Removing duplicate interaction pairs in python sets

By : Jianli Qi
Date : March 29 2020, 07:55 AM
it should still fix some issue suppose you have a list of tuples in a python set: , How about:
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