Java data structure There may be more than one correct answer(s). Choose all that applies. Referring to the LinkedQueue, java implementation in Chapter 4. Recall that withinthe LinkedQueue class, the front and rear variables are of type LLNode holding references to the front and rear nodes of the underlying linked list, andthe numElements variable is an int that holds the current size of the queue. Which of the following code sequences could be used to correctly implementthe isEmpty operation?V return (rear == null);return (numElements null);V return (numElements == 0);O return (numElements = rear)return (numElements == front)9 return (front null);

The LLNode class is inherently recursive. Start with current node and point it to head while the…

There may be more than one correct answer(s). Choose all that applies. Referring to the LinkedQueue, java implementation in Chapter 4. Recall that within the LinkedQueue class, the front and rear variables are of type LLNode holding references to the front and rear nodes of the undeėrlying linked list, and the numElements variable is an int that holds the current size of the queue. Which of the following code sequences could be used to correctly implement the isEmpty operation? 9 return (rear null); O return (numElements - null); O return (numElements - 0); O return (numElements rear) O return (numElements front) O return (front - null);

There may be more than one correct answer(s). Choose all that applies. Referring to the LinkedQueue, java implementation in Chapter 4. Recall that within the LinkedQueue class, the front and rear variables are of type LLNode holding references to the front and rear nodes of the undeėrlying linked list, and the numElements variable is an int that holds the current size of the queue. Which of the following code sequences could be used to correctly implement the isEmpty operation? 9 return (rear null); O return (numElements - null); O return (numElements - 0); O return (numElements rear) O return (numElements front) O return (front - null);

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter18: Stacks And Queues

Section: Chapter Questions

Problem 16PE: The implementation of a queue in an array, as given in this chapter, uses the variable count to...

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