Interface Queue<E>

public interface Queue<E>

This is an interface for a Queue. An object which implements this interface is thus a FIFO structure. It can enqueue to the end, dequeue from the front, or peek at the front.

Method Summary

Methods

Modifier and Type	Method and Description
E	dequeue() Removes an item from the front of the queue.
void	enqueue(E value) Adds an item to the end of the queue.
E	peek() Checks item at the front of the queue, without altering the queue.

Method Detail

dequeue

E dequeue()

Removes an item from the front of the queue.

Returns:

the value removed

enqueue

void enqueue(E value)

Adds an item to the end of the queue.

Parameters:

value - the value to be enqueued

peek

E peek()

Checks item at the front of the queue, without altering the queue.

Returns:

the value checked