Concat with an object not working

[Eyetoof]

I’ve stripped the issue I am having down to isolate the issue. I figure its just a data type issue and I should maybe switch to ArrayLists but… I wanted to see if anyone had a specific insight.

First off here is what I am trying to do, and it works fine with color(); vars.

here is shot of the class define and the main tab where concat is not happy.

I just checked the documentation and Object is listed as a valid type to use concat with…

thanks in advance for any help.

[GoToLoop]

@Eyetoof

… where concat() is not happy.

Processing.org/reference/concat_.html

When using an array of objects, the data returned from the function must be cast to the object array’s data type.
For example: SomeClass[] items = (SomeClass[]) concat(array1, array2);.

If you dislike using the (cast) operator for concat() I can write for you a version that doesn’t need it like I did for append():

Unable to append to an array of G4P objects

Using (cast) is indeed not ideal. If you wish, you can override append() pasting the 3 methods below on your sketch, so (cast) isn’t needed anymore: static final <T> T[] expand(final T[] list) { return expand(list, list.length << 1); } static final <T> T[] expand(final T[] list, final int newSize) { return java.util.Arrays.copyOf(list, newSize); } static final <T> T[] append(final T[] list, final T value) { final T[] arr = expand(list, list.length + 1); arr[arr.length - 1] = va…

[jeremydouglass]

Thanks for sharing this question!

When possible, please paste code as text rather then as screenshots. Error messages and warnings can also be cut-pasted by clicking on the error bar.

[Eyetoof]

Jeremy, Ah yes I understand, sorry about that.

[Eyetoof]

Thank you GoTo, I did go the casting route and its working great.

Cheers!

Toof