Error with to string method my code is below - queue

Question

Trying to code this and its driving me crazy i know its something simple
my question is on the toString method i am getting compile error Cannot find symbol varible getNext also if you can check the rest of the methods for accuracy that would be greatly appreciated
public class Turner_A06Q2
{
/**
* Program entry point for queue testing.
* #param args Argument list.
*/
public static void main(String[] args)
{
LinkedQueue<Integer> queue = new LinkedQueue<Integer>();
System.out.println("QUEUE TESTING");
queue.enqueue(3);
queue.enqueue(7);
queue.enqueue(4);
System.out.println(queue.first());
queue.dequeue();
queue.enqueue(9);
queue.enqueue(8);
System.out.println(queue.first());
System.out.println(queue.dequeue());
System.out.println(queue.first());
System.out.println("The size of the queue is: " + queue.size());
System.out.println("The queue contains:\n" +queue.toString());
}
/**
* LinkedQueue represents a linked implementation of a queue.
*
* #author Java Foundations
* #version 4.0
*/
public static class LinkedQueue<T> implements QueueADT<T>
{
private int count;
private LinearNode<T> head, tail; //front, back
/**
* Creates an empty queue.
*/
public LinkedQueue()
{
count = 0;
head = tail = null;
}
/**
* Adds the specified element to the tail of this queue.
* #param element the element to be added to the tail of the queue
*/
public void enqueue(T element)
{
LinearNode<T> node = new LinearNode<T>(element);
if (isEmpty())
head = node;
else
tail.setNext(node);
tail = node;
count++;
}
/**
* Removes the element at the head of this queue and returns a
* reference to it.
* #return the element at the head of this queue
* #throws EmptyCollectionException if the queue is empty
*/
public T dequeue() throws EmptyCollectionException
{
if (isEmpty())
throw new EmptyCollectionException("queue");
T result = head.getElement();
head = head.getNext();
count--;
if (isEmpty())
tail = null;
return result;
}
/**
* Returns a reference to the element at the head of this queue.
* The element is not removed from the queue.
* #return a reference to the first element in this queue
* #throws EmptyCollectionsException if the queue is empty
*/
public T first() throws EmptyCollectionException
{
return head.getElement();
return null;
}
/**
* Returns true if this queue is empty and false otherwise.
* #return true if this queue is empty
*/
public boolean isEmpty()
{
return count==0;
}
/**
* Returns the number of elements currently in this queue.
* #return the number of elements in the queue
*/
public int size()
{
return count;
return 0;
}
/**
* Returns a string representation of this queue. The front element
* occurs first, and each element is separated by a space. If the
* queue is empty, returns "empty".
* #return the string representation of the queue
*/
public String toString()
{
if (isEmpty()) {
return " ";
}
StringBuilder sb = new StringBuilder();
LinearNode<T> next = head.getNext;
while(next != null){
sb.append(" ").append(next.getElement());
next = next.getNext();
}
return sb.toString();
}
}
}

Answer 1

it is a queue and you are trying to print the contents of a queue without actually iterating over it hence, the error.
Try something like this:
for (E element : queue)
{
System.out.println(queue.get(i).toString());
}