Java Code: Returns the element at the specified position in this list.

public E get(int index) { for(int i = 0;i 
Appends the specified element to the end of this list.
 
public boolean add(E e) { return false; } 
 
Replaces the element at the specified position in this list with the specified element (optional operation).
 
public E set(int index, E element) { return null; }
 
Returns an array containing all of the elements in this list in proper sequence (from first to last element).
 
public Object[] toArray() { return new Object[0]; }