ApartmentComparison.java

import static java.lang.Math.abs;


public class Apartment {

    private int rooms;
    private int squareMeters;
    private int pricePerSquareMeter;

    public Apartment(int rooms, int squareMeters, int pricePerSquareMeter) {
        this.rooms = rooms;
        this.squareMeters = squareMeters;
        this.pricePerSquareMeter = pricePerSquareMeter;
    }
    
    public boolean larger(Apartment otherApartment) {
        return (this.squareMeters > otherApartment.squareMeters);
    }
    
    public int priceDifference(Apartment otherApartment) {
        int firstValue = this.pricePerSquareMeter * this.squareMeters;
        int secondValue = otherApartment.pricePerSquareMeter * otherApartment.squareMeters;
        return abs(firstValue - secondValue);
    }
    
    public boolean moreExpensiveThan(Apartment otherApartment) {
        return ((this.pricePerSquareMeter * this.squareMeters) > (otherApartment.pricePerSquareMeter * otherApartment.squareMeters));
    }
    
}