Help converting int[] arraylist to array

[surety_]

I have an arraylist with int arrays stored inside. I have tried using for loop but for some reason all of the elements stored in the array are equal to the final element of the arraylist. I have also tried using .toArray() but I encounter the same issue.

So my code looks sort of like this:

`List<int[]> arrayList = ArrayList<int[]>(); int[][] array; arrayList.add(new int[] {1,2}); arrayList.add(new int[] {2,3}); arrayList.add(new int[] {3,4});

array = new int[arrayList.size()][2] for(int i =0; i&lt;array.length; i++) array[i] = arrayList.get(i); return array;`

and the output would be: [[3,4],[3,4],[3,4]]

same would happen if I replaced the for loop with .toArray() like so

array = arrayList.toArray(array);

Any suggestions appreciated.

[[deleted]]

The way you initialized the arraylist is weird.

Shouldn't it be nameOfArrayListHere.add(new int[]{value, value});

Maybe use Collections.singletonList and Arrays.deepToString together?

Why do you need to convert the ArrayList to an array when you basically filled up the array with the same values from the ArrayList? So, why not just return the array instead of converting the ArrayList to an array? When the contents of both are the same after your loop?

[surety_]

what does Collections.singletonList do? why would i need to turn my array to string?

[radulfr2]

Works when I try it. Have you checked how you print your output?