How to get the last value of an ArrayList

Question

How can I get the last value of an ArrayList?

I don't know the last index of the ArrayList.

Answer 1

To get the last value of an ArrayList use:

if (arrayList != null && !arrayList.isEmpty()) {

  T item = arrayList.get(arrayList.size()-1);

}

or use the syntax below which is a part of the List interface (which ArrayList implements):

E e = list.get(list.size() - 1);

E is the component type. If the list is empty, get throws an IndexOutOfBoundsException. You can find the whole API documentation here.