Java - HashSet to filter duplicates(XSSFCell)

Question

I have a list which contains duplicates & need to remove them. My list is of the form

List<List<XSSFCell>> results;

A sample of data stored in the List 'results' is:

Based on this Link I tried the below code:

Set<List<XSSFCell>> hashSetResults = new LinkedHashSet<>(results);

Expected output is:

But it is not removing the duplicate & the entire list gets saved in the Set. Hope am clear on the issue faced, seek guidance.

This is because because you are passing list of objects, how to fix it need a bit of thinking — Maytham Fahmi, Apr 28 '16 at 14:42
Are the individual `XSSFCell` entries equal (using the `equals()` method)? If the lists were actually equal (via `equals()`) I think your approach should work. — Tim Biegeleisen, Apr 28 '16 at 14:49
I checked the JavaDoc and an `XSSFCell` object has a row and column index. So even though two cells in two lists might be logically equal, they can not be equal via `equals()`. — Tim Biegeleisen, Apr 28 '16 at 14:52

score 0 · Accepted Answer · answered Apr 28 '16 at 14:55

0

you should override XSSFCell equal method.

answered Apr 28 '16 at 14:55

ugurdonmez

1 Answers1