ArrayList remove internal array using reference?

Question

Node.js

Good
I will describe in brief, otherwise the code will be a sheet of unnecessary code. The situation is this. There are two arrays:

ArrayList<String> arrayString = new ArrayList<>
ArrayList<ArrayList> array = new ArrayList<>
array.add(arrayString) // i раз

so the number of arrayString is unlimited, i.e. array will have i number.
Then I send one of the arrayString to another class

//типо такого
myClass.array(array.get(5));

I get in class

private ArrayList arrayString ;
    public  array(ArrayList<String> arrayString ) {
this.arrayString = arrayString;
........
this.arrayString = null //тут я надеялся занулить сам массив, но занулил ссылку на него
    }

so after executing the further code, I need to nullify arrayList.get(5) = null and delete it, but I would like to do it somehow through this.arrayString = null, but alas, I nullify the link to arrayList.get(5) , not the element itself from arrayList. It is extremely unreliable to pass the array index itself, because the array often changes its size, how to get out?

Answer 1

Maybe try installing the latest node and install the new npm with it?

Answer 2

this.arrayString= new ArrayList<>();
hmm, I re-read the question and realized that I didn’t understand what exactly the author wants to get.