Create and objects in ArrayList when mouse is pressed

Processing Beginners
2

Please remember

Initially there is no 0th element because the list is empty

Try

if(bulletList.size()>0)
     println(bulletList.get(0).location.x);

OR

Or move println inside the if clause {…}

 if(mousePressed)
    {
       bulletList.add(new Bullet());
       println(bulletList.get(0).location.x);      
    }