How to insert an object in an ArrayList at a specific position

Question

Suppose I have an ArrayList of objects of size n. Now I want to insert an another object at specific position, let\'s say at index position k (is greater than 0 and less tha

Answer 1

This method Appends the specified element to the end of this list.

add(E e) //append element to the end of the arraylist.

This method Inserts the specified element at the specified position in this list.

void add(int index, E element) //inserts element at the given position in the array list.

This method Replaces the element at the specified position in this list with the specified element.

set(int index, E element) //Replaces the element at the specified position in this list with the specified element.