2. ArrayList.set(int index, E element) – Replace element at specified index. This method replaces the specified element E at the specified position in this list. As this method replaces the element, the list size does not change. Index start with 0. Jav

The index is zero-based. element – the element to be inserted at the specified position. Exception: throws IndexOutOfBoundsException which occurs when the index is trying to be accessed which isn’t there in the allocated memory block. In java, this ex

To add an element at the specified index of ArrayList use void add(int index, Object obj) method. This method inserts the specified element at the specified index in the