Method peek

java/Chapter 3/Question3_7/AnimalQueue.java:35–48

()

	}
	
	public Animal peek() {
		if (dogs.size() == 0) {
			return cats.peek();
		} else if (cats.size() == 0) {
			return dogs.peek();
		}
		Dog dog = dogs.peek();
		Cat cat = cats.peek();
		if (dog.isOlderThan(cat)) {
			return dog;
		} else {
			return cat;
		}
	}
	
	public int size() {
		return dogs.size() + cats.size();