Mastery Quiz - LinkedList

What is the primary purpose of the LinkedList class in Java?

• To store data in a fixed-size array

• To provide a collection that can contain many objects of the same type

• To create a multi-dimensional array

• To implement a stack data structure

Which method is used to add an item to the beginning of a LinkedList?

• prepend()

• addFirst()

• insert()

• addLast()

How does the LinkedList class store its items?

• In a single continuous block of memory

• In containers linked to each other

• In a hash table

• In a binary tree structure

Which method would you use to remove the last item from a LinkedList?

• removeLast()

• pop()

• removeFirst()

• deleteLast()

What is the main advantage of using a LinkedList over an ArrayList?

• Faster access to random elements

• More efficient for adding and removing elements

• Less memory usage

• Easier to implement

Which of the following methods retrieves the first element of a LinkedList?

• peekFirst()

• first()

• getFirst()

• head()

What interface do both ArrayList and LinkedList implement?

• Collection

• List

• Set

• Map

Which method is NOT part of the LinkedList class?

• push()

• clear()

• remove()

• add()

What happens when an element is added to a LinkedList?

• It is placed in a new container linked to existing containers

• It replaces the last element

• It is stored in a hash map

• It is added to a fixed-size array

Which method would you use to check if a LinkedList is empty?

• length()

• size()

• checkEmpty()

• isEmpty()