4.5 Create and use List, Set and Deque implementations

Lembretes:

• A interface Deque herda de Queue que herda de Collection que herda de Iterable;

First in, first out (FIFO) - Queue

Last in, first out (LIFO) - Deque

Queue Method	Equivalent Deque Method
add(e)	addLast(e)
offer(e)	offerLast(e)
remove()	removeFirst()
poll()	pollFirst()
element()	getFirst()
peek()	peekFirst()