Create a class called Dog that implements the Comparable interface. Dog should provide a public constructor that takes a single double argument that sets that dog's weight. You should assert that the provided weight is greater than zero. You should order dogs based on their weight. Specifically, compareTo should return:

• -1 if this dog is lighter than the passed dog
• 0 if this dog is the same weight as the passed dog, or if the passed value is not a Dog
• 1 if this dog is heavier than the passed dog

As a reminder, the Comparable interface comprises a single method: int compareTo(Object other).