Queue

What is a queue in Java?

• A data structure for FIFO operations
• A collection of unordered elements
• A type of array
• A method for sorting

How to create a queue in Java?

• Using ArrayList
• Using LinkedList
• Using queue() method
• Using new Queue()

What is the difference between ArrayList and queue in Java?

• None
• ArrayList is unordered, queue is ordered
• ArrayList is LIFO, queue is FIFO
• ArrayList doesn't store elements, queue stores elements

Is queue a class in JDK?

• Yes
• No

What is the 4 types of queue?

• Priority, Linked, Double-ended, Circular
• LIFO, FIFO, Circular, Linear
• Circular, Priority, Linked, Linear
• LIFO, FIFO, Circular, Priority

Is queue a LIFO or FIFO?

• LIFO
• FIFO

What is queue and stack?

• Same concepts
• Both are data structures
• Queue: FIFO, Stack: LIFO
• Queue: LIFO, Stack: FIFO

What is the purpose of queue?

• To store unordered data
• To manage thread priorities
• To perform sorting
• To handle data in a specific order

What is an example of a queue?

• ArrayList
• LinkedList
• Stack
• HashMap

What are the limitations of queue?

• No limitations
• Limited size, performance concerns
• Only supports strings
• Cannot handle multi-threading