Add "subpoint" to config.yml

Hi i need to know how to add a value for a path.
So that for example
when a1 = 5 a2=7 a3= 14
at the config.yml stands:
a:
5
7
14

so that i can use getconfig().getIntegerList().consists(" A random Number") for example for 5 it will be true for 6 not.

So whats this command i search?
Can someone help me?

 

Create a list of the integers, then use Configuraton#set(path, object) to set your list.
Then save the config.

 

But from time to time I want too add more values as subpoints how is this possible?

 

Get the list, add and remove values as you wish, set it as the new list.

 

Hmm okey thanks. But how i create a int list and add values?
i hadn't done sth. with lists before
@SuperOriginal
Is this right?

Code:

ArrayList<Integer> X = new ArrayList<Integer> ();
            X.add(placed.getX());

 

I would recommend keeping variable names lowercase to avoid confusion, but yes. That's correct.