Add the following methods to the Linked List class you're writing in class $($Do NOT import Java's LinkedList$)$:

Method $1$: The clone$()$ method creates a new Linked List that contains all of the elements as the current list. It returns the new list. The method's return type is "Object" because it is a standard Java method and that is what Java stipulates. The object the method actually returns is a LinkedList. You don't need to do any type casting.

@override

public object clone$()\{$

Method $2$: The containsAll$0$ method is given a LinkedList object and returns true if all of the elements in that list are also in the current list.

public boolean containsAll$($LinkedList