public class ExampleArrayList {

    //Create an array list ..... notice under class name not under any methods = field = can be seen by anywhere in this class because we want to use it anywhere]
    // this list is still empty (has not been initialized)
    public static List aList;

    //create a method call do stuff
    public static void main(String[] args) {
        //Initialize (create) an arraylist of type Integer (to keep numbers),, notice that we can call aList here because aList is a field
        aList = new ArrayList<Integer>();

        //this is called a local variable, cannot be called by anywhere else except in this method
        List bList = new ArrayList<Integer>();

        //add 0 - 10 to the list
        for (int i = 0; i < 10; i++) {
            aList.add(i);
        }

        for (int i = 0; i < 10; i++) {
            System.out.println(aList.get(i));
        }
    }

    public void doIllegalStuff() {
        //bList.add(5); This is not possible because bList is a local variable
    }

    public void hintForPloy() {
        /*
        So i showed you about an arrayList of Integer
        but you need arrayList of Location == > ArrayList<Location>

        and an arraylist of timer ==> ArrayList<Timer>
    /*
    }
}