public static void main(String[] args) {
		LinkedList<Pet> pets = new LinkedList<Pet>(Pets.arrayList(5));
		System.out.println(pets);
		
		// Identical:
		System.out.println("pets.getFirst(): " + pets.getFirst());
		System.out.println("pets.element(): " + pets.element());
		// Only differs in empty-list behavior:
		System.out.println("pets.peek(): " + pets.peek());
		
		// Identical; remove and return the first element:
		System.out.println("pets.remove(): " + pets.remove());
		System.out.println("pets.removeFirst(): " + pets.removeFirst());
		// Only differs in empty-list behavior:
		System.out.println("pets.poll(): " + pets.poll());
		System.out.println(pets);
		
		pets.addFirst(new Rat());
		System.out.println("After addFirst(): " + pets);
		
		pets.offer(Pets.randomPet());
		System.out.println("After offer(): " + pets);
		
		pets.add(Pets.randomPet());
		System.out.println("After add(): " + pets);
		
		pets.addLast(new Hamster());
		System.out.println("After addLast(): " + pets);
		System.out.println("pets.removeLast(): " + pets.removeLast());
	}