Collision through an array

I have a basic array list that adds bullets to it once clicked. I’m trying to create a new Rectangle as well that keeps its’ position, but it returns 0.0.

For an example I have this.

stuff.add(new thingy(somethingCool));

I need a rectangle to be at

somethingCool.x & somethingCool.y

. I hope this is enough code for an answer.