Create new list as List<List<Integer>> in Java

Question

I have a nested List<List<Integer>> and Integer[] marks

When I am sending the request from Postman like this :

"numsList" : [
    [1, 0],
    [2, 2],
    [2, 3]
  ]

everything is working fine. The request is getting mapped as numsList=[[1, 0], [2, 2], [2, 3]]

But when I am trying to write a junit, I am unable to create the request object in this format.

I am doing like this : var numsList = List.of(List.of(1,0,2,3,2,2)); and it is in the incorrect format.

Need some help to correct this.

Please provide a minimal reproducible example and be more clear about the problem. — Mark Rotteveel
– Mark Rotteveel, Commented Aug 8, 2021 at 15:09

Alex Shesterov · Accepted Answer · 2021-08-08 15:10:39Z

2

List.of(List.of(1,0,2,3,2,2)) is [[1,0,2,3,2,2]].

You probably need List.of(List.of(1,0), List.of(2,3), List.of(2,2)), which is [[1,0], [2,3], [2,2]].

answered Aug 8, 2021 at 15:10

Alex Shesterov

27.8k14 gold badges91 silver badges110 bronze badges

Sign up to request clarification or add additional context in comments.

1 Answer 1