What's not to like about ArrayList?

Question

Java

Good!
Simple question but can't figure out the problem. There is an array of strings, I want to fill it with data, but I don’t understand the errors

private ArrayList<String> dataList = new ArrayList<>();
publick void myFun ()
{
        for (int i = 0; i<2; ++i)
            dataList.add(null);
        String s = "ss";
        dataList.get(0) =s; //не нравится эта строчка, подчёркивает красным

error:
Error:(45, 21) error: unexpected type
required: variable
found: value

Answer 1

null = "ss"; // ERROR