Question

I have array list of strings. I want to check in specific moment if in this array I have more elements than my “i”, if yes I want to remove that elements. For example. I have five elements in array. I choose element which index is four. I want to check if exist higher element(in this case that higher will be element which index is 5) and remove that element. If I choose 3 element I want to remove 4 and 5 element. I do something like that:

            for(int j = 0; j<descriptions.size();j++){
                if(!descriptions.get(i+1).isEmpty()){
                    descriptions.remove(i+1);
                }
            }

This solution work good when I choose 3 element and two elements was removed. But when I want choose 4 element I get index out of bound exception. How I can solve my problem?

Answer 1

I don’t quite see the point of using for loop in your code.

What you probably want to do is to remove any items beyond i th element in the list.

The easiest way to do is to repeatedly remove the last element from the list.

Here’s a sample code for reference:

while(descriptions.size() > i){
  descriptions.remove(descriptions.size()-1);
}