can you explain why the code shown below does not output: pineapple lime and how to fix it when using the driver program shown in screen shot to test. i also attach of the LLNode class // Note: It is important to implement this file as a circular queue without 'front' pointer public class CircularLinkedQueue implements QueueInterface { protected LLNode rear; // reference to the rear of this queue protected int numElements = 0; public CircularLinkedQueue() { rear = null; } public void enqueue(T element) { // Adds element to the rear of this queue. LLNode newNode = new LLNode(element); if (isEmpty()) { rear = newNode; newNode.setLink(newNode); numElements++; } else { rear = newNode; newNode.setLink(rear.getLink()); rear.setLink(newNode); numElements++; } } public T dequeue() { // Throws QueueUnderflowException if this queue is empty; // otherwise, removes front element from this queue and returns it if (isEmpty()) throw new QueueUnderflowException("Dequeue attempted on empty queue"); else { T element; rear = rear.getLink(); element = rear.getInfo(); rear.setInfo(null); if (rear.getLink() == null) rear = null; numElements--; return element; } } public String toString() { String result = "\n"; LLNode cursor = rear; while (cursor != null){ result+=(cursor.getInfo()); cursor = cursor.getLink();   } return result; } public boolean isEmpty() { // Returns true if this queue is empty; otherwise, returns false. return (numElements == 0); } public boolean isFull() { // Returns false - a linked queue is never full. return false; } public int size() { // Returns the number of elements in this queue. return numElements; } }

can you explain why the code shown below does not

output:

pineapple

lime

and how to fix it when using the driver program shown in screen shot to test.

i also attach of the LLNode class

// Note: It is important to implement this file as a circular queue without 'front' pointer

public class CircularLinkedQueue<T> implements QueueInterface<T> {

protected LLNode<T> rear; // reference to the rear of this queue

protected int numElements = 0;

public CircularLinkedQueue() {

rear = null;

}

public void enqueue(T element) {

// Adds element to the rear of this queue.

LLNode<T> newNode = new LLNode<T>(element);

if (isEmpty()) {

rear = newNode;

newNode.setLink(newNode);

numElements++;

}

else {

rear = newNode;

newNode.setLink(rear.getLink());

rear.setLink(newNode);

numElements++;

}

}

public T dequeue() {

// Throws QueueUnderflowException if this queue is empty;

// otherwise, removes front element from this queue and returns it

if (isEmpty())

throw new QueueUnderflowException("Dequeue attempted on empty queue");

else {

T element;

rear = rear.getLink();

element = rear.getInfo();

rear.setInfo(null);

if (rear.getLink() == null)

rear = null;

numElements--;

return element;

}

}

public String toString() {

String result = "\n";

LLNode<T> cursor = rear;

while (cursor != null){

result+=(cursor.getInfo());

cursor = cursor.getLink();

}

return result;

}

public boolean isEmpty() {

// Returns true if this queue is empty; otherwise, returns false.

return (numElements == 0);

}

public boolean isFull() {

// Returns false - a linked queue is never full.

return false;

}

public int size() {

// Returns the number of elements in this queue.

return numElements;

}

}