Linked List

What is a LinkedList in Java?

• Dynamic data structure
• Sequential array
• Complex algorithm
• Linear tree

What is the difference between an ArrayList and a LinkedList?

• Storage mechanism
• Insertion efficiency
• Data representation
• Deletion efficiency

Why do we use LinkedList in Java?

• Fast access
• Frequent insertions
• Static storage
• Parallel processing

Why is LinkedList used?

• Constant time access
• Priority order
• Dynamic sizing
• Random access

Is an ArrayList a LinkedList?

• Yes
• No
• Sometimes
• Depends on usage

What are the types of linked lists?

• Linear, circular, hierarchical
• Priority, LIFO, FIFO
• Singly, doubly, circular
• Stacks, queues, trees

What is the advantage of LinkedList vs ArrayList?

• Random access
• Efficient insertions
• Priority order
• Fixed size

What is the advantage of ArrayList vs LinkedList?

• Random access
• Efficient insertions
• Dynamic sizing
• Priority order

Is ArrayList faster than LinkedList?

• Yes
• No
• Depends on usage
• Same speed

What is a HashSet in Java?

• Duplicate storage
• Unique elements
• Alphabetical sorting
• Priority order