Adding Multiple Values in ArrayList at a single index

Question

I have a double ArrayList in java like this.

List values = new ArrayList(2);

Now what I want t

Answer 1

@Ahamed has a point, but if you're insisting on using lists so you can have three arraylist like this:

ArrayList first = new ArrayList(Arrays.AsList(100,100,100,100,100));
ArrayList second = new ArrayList(Arrays.AsList(50,35,25,45,65));
ArrayList third = new ArrayList();

for(int i = 0; i < first.size(); i++) {
      third.add(first.get(i));
      third.add(second.get(i));
}

Edit: If you have those values on your list that below:

List values = new ArrayList(2);

what you want to do is combine them, right? You can try something like this: (I assume that both array are same sized, otherwise you need to use two for statement)

ArrayList yourArray = new ArrayList();
for(int i = 0; i < values.get(0).length; i++) {
    yourArray.add(values.get(0)[i]);
    yourArray.add(values.get(1)[i]);
}