Add an ArrayList of persons to the Person class.

[Persons_Comparator.git] / src / Weight.java

public class Weight implements Comparable<Weight> {
    private int weight;

    Weight() {
    }

    Weight(int weight) {
        setWeight(weight);
    }

    public int getWeight() {
        return weight;
    }

    public void setWeight(int weight) {
        if (validateWeight(weight)) {
            this.weight = weight;
        } else {
            throw new IllegalArgumentException("Weight cannot be negative or zero");
        }
    }

    private boolean validateWeight(int weight) {
        return (weight > 0);
    }

    @Override
    public int compareTo(Weight weight) {
        int distance = weight.weight - this.getWeight();
        if (distance >= 0)
            return distance;
        else
            return -distance;
    }
}