All Questions
35
questions
0
votes
1
answer
38
views
how to return numbers by column from objects that have array list attribute
I have a class where I am creating different "Processes", an attribute of this class is an linked list of Integers. I have created different class objects and to make it easy to loop through ...
- 13
-1
votes
1
answer
46
views
deleting duplicate objects from an arraylist
I have an array list consisting of objects defined in the class Result(date, name, grade). I have managed to sort the dataset. However I want there to be no duplicates, only the object with that has ...
- 1
0
votes
1
answer
314
views
Ordering array of objects alphabetically by name, data fetched from API
I am fetching data(a contact list: name, email, phone, etc)from API. The mapping is done and I can see the list of names displayed but now I want them in alphabetical order from a-z.
I am trying this ...
- 109
0
votes
1
answer
133
views
How to sort ArrayList of objects by alphabetical order of property
I have an ArrayList of People, with every person having their names or ages.
So, I'll be adding new people to this ArrayList and I want to sort it alphabetically.
For example:
ArrayList<Person> ...
- 111
0
votes
1
answer
90
views
How does the sorting of ArrayList of custom object works?
How does this list.sort() method is actually sorting the objects according to their property.
This is a solution for a LeetCode question 1337.
class Solution {
public int[] kWeakestRows(int[][] mat, ...
- 11
2
votes
1
answer
38
views
Sort ArrayList by diffrent parameters which are in an object [duplicate]
I have an Class "Person" which contains a constructor with 3 parameters.
Now i want a sorting option, i need it to sort by ID, Name, or Address ascending and descending
public class Person
{
private ...
-2
votes
1
answer
45
views
Problem with using compareTo with an arrayList
I am trying to write a program to analyze and interpret GIS data. I have the program completely coded out but am running into issues when I try to use a compareTo to sort the program on different ...
- 31
0
votes
1
answer
59
views
How to sort two object arraylists?
Far a game I need two sort an object arraylist (Room.enemies) on the speed attribute and player object with it's speed attribute so I can know in which order I need to run the attack methods.
For ...
0
votes
2
answers
56
views
Sorting through an array list of objects
I am trying to read data in from a CSV file containing 4 columns to an array list. Let's call the columns a,b,c,d (They each contain integers). Then I would like to sort the array list according to ...
- 3
0
votes
1
answer
38
views
Sorting an ArrayList object populated with custom objects with two data fields each
stuck on a problem with sorting ArrayLists. I'm sure the answer is really easy and something I just keep overlooking, but I've been working on this for the past many hours straight and just need ...
- 41
0
votes
2
answers
639
views
Java - Sorting Objects in an ArrayList<Car> based on MPG
I am having issues (using a modified version of SelectionSort) to sort the ArrayList of Car objects from lowest MPG to greatest MPG. Here is my code:
public ArrayList<Car> getSortedByMPG(){
...
- 41
-1
votes
2
answers
162
views
Sorting 2D Arraylist of Object
I have 2D Arralist of Object and i want to sort it upon first column which contains LocalDate
i used this code to sort it
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("d/M/yyyy");
...
- 25
-1
votes
1
answer
83
views
Sorting an an ArrayList of Objects in Java
I have an object that holds an int value, a String, and a double. Instances of that object are stored in an ArrayList. I want to print that object now but I want to first sort the ArrayList by the ...
- 15
-2
votes
2
answers
1k
views
JAVA ArrayList sort and remove pairs
I am trying to write a small card game and have become stuck
I created a class Deck and in it an arraylist of objects, each object represents 1 card in a playing deck comprised of a String suit, ...
- 11
-2
votes
1
answer
58
views
Shuffle only one variable of objects in arraylist
I have an arraylist filled with objects of a class. These objects have variables like x,y and a imagePath. I only want to shuffle the imagepath variables in this arraylist between the objects. So x- ...
- 206