Questions tagged [collections]
Collections APIs provide developers with a set of classes and interfaces that make it easier to handle collections of objects.
collections
24,101
questions
-1
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Java add method is not working during arraylist iteration [duplicate]
Add method is not working in Iteration of arraylist but remove method is working in iteration of arraylist.
package thread;
import java.util.ArrayList;
import java.util.Iterator;
import java.util....
0
votes
1
answer
19
views
Fetch Textures From a Collection
Hello everyone who's reading.
I'm trying to create a website where I can mouse scroll through "cards" that are all in a single line, seen with a iso view from the side.
I've set up the scene ...
- 3
0
votes
1
answer
56
views
.Net collection performance for special use case
I am looking for a good starting point for my use case.
My use case is somewhat special so a simple performance test with all the collections available will not do it.
Performance is everything. ...
- 305
-3
votes
0
answers
23
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How to create collections block loop in shopify [closed]
{% if section.blocks.size > 0 %}
<div class="collections-list">
{% for block in section.blocks %}
{% if block.type == 'collections_block' %}
{% assign collection ...
0
votes
0
answers
38
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PowerApps: Storing all values from a multiple choice column into a collection
I have a choice column in SharePoint which allows multiple values from a separate lookup. When linking this to a PowerApp, is there a way to store all the values into a collection, so that when I ...
- 11
0
votes
1
answer
60
views
Convert List<Task<T>>> to List<T> [duplicate]
I have this variable that should project and return a list of AttachmentRequestModel as follows :
var mappedAttachments = recordAction
.PPAttachments
.Select(async x => new ...
0
votes
0
answers
36
views
C# - Looking for an efficient way to add a range of numbers to a collection only replacing null elements
I would like to add a range of numbers to a collection but only replacing null elements. True would be returned if elements have been replaced, otherwise false.
For example let's say I have a ...
- 786
0
votes
1
answer
19
views
Collection.Count shows zero even though Collection.GetEnumerator.Current contains a reference after MoveNext()
Note: An answer in either VB.NET or C# will be fine. I have no preference for this Q&A.
I'm trying to test my networking code and I'm running into a very strange problem: the GatewayAddresses ...
- 6,299
2
votes
1
answer
40
views
RavenDb - getting name of a collection
It seems RavenDb pluralizes object names when storing them. So a PhoneBook becomes PhoneBooks, and PhoneBookCategory becomes PhoneBookCategories.
For any ByQueryOperation, if I write the query, I have ...
- 1,223
0
votes
0
answers
10
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Swiperjs breaks when setting up Conditional Layouts on a Webflow CMS Page
I have a Webflow CMS Collection page that I'm using for my blog. In the design, I had two different swiper.js slider types (defined individually in codesandbox) that were working perfectly until I ...
0
votes
1
answer
110
views
MVVM: How to handle a List of Models in the ViewModel?
I'm trying to create a MindMap programm using WPF with MVVM.
I have a Model called "NodeModel" that has a list of Child NodeModels.
public class NodeModel
{
public string Content { get; ...
- 17
0
votes
2
answers
53
views
Which method to use for Laravel Collection to find a Date between two DateTime
$period = new DatePeriod(
new DateTime('2024-03-20 00:00:00'),
new DateInterval('P1D'),
new DateTime('2024-03-28 23:59:59')
);
$suppliersInfo = OrderProduct::whereNotNull('brand')
-...
-3
votes
1
answer
58
views
Cannot override method retainAll() of java Collection Interface [closed]
I am trying to implement the Collection interface of the java.util package by class ImplementCollectionInterface. Here the java compiler is giving an error:
ImplementCollectionInterface is not ...
- 15
0
votes
1
answer
83
views
How to combine multiple Collections (Queue or List) element by element?
I have 3 queues of records (of idential size and datetime order) and want to combine them record by record.
It is similar to below:
record BuyOrder(String date, String product, double buyPx) {};
...
- 308
0
votes
1
answer
103
views
Java Generics Warnings
I've been studying generics in Java, and after learning from various sources, I attempted to build a generic class that accepts a Number or its subclass during instantiation. This class includes a ...
