public class LinkedQueue<E> extends Object implements Queue<E>
SinglyLinkedList| Constructor and Description |
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LinkedQueue()
Constructs an initially empty queue.
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| Modifier and Type | Method and Description |
|---|---|
E |
dequeue()
Removes and returns the first element of the queue.
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void |
enqueue(E element)
Inserts an element at the rear of the queue.
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E |
first()
Returns, but does not remove, the first element of the queue.
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boolean |
isEmpty()
Tests whether the queue is empty.
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int |
size()
Returns the number of elements in the queue.
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String |
toString()
Produces a string representation of the contents of the queue.
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public int size()
public boolean isEmpty()
public void enqueue(E element)
public E first()
public E dequeue()