/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package coinhunt;

/**
 *
 * @author Guilherme
 */
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author Guilherme
 */
class Ponto{
    double x,y;
    public Ponto(double x, double y){
        this.x = x;
        this.y = y;
    }

    public double getX(){
        return x;
    }
    public double getY(){
        return y;
    }

}
abstract class  Palindromo{
    Ponto p1;
    Ponto p2;

    public Palindromo(double x1, double y1, double x2, double y2){
        p1 = new Ponto(x1,y1);
        p2 = new Ponto(x2,y2);
    }

    abstract double area();
}

class Quadrado extends Palindromo
{
    public Quadrado(double x, double y, double lado){
        super(x,y, x + lado, y - lado);
    }

    @Override
    double area() {
        return Math.pow(p2.getX() - p1.getX(), 2);
    }

}
class Retangulo extends Palindromo{
    public Retangulo(double x1, double y1, double x2, double y2){
        super(x1,y1,x2,y2);
    }

    @Override
    double area() {
        double lado1 = Math.abs(p2.getX() - p1.getX());
        double lado2 = Math.abs(p1.getY() - p2.getY());

        return lado1 * lado2;
    }
}


public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        Quadrado q = new Quadrado(5, 3, 2);
        System.out.println(q.area());
        System.out.println(q.p2.getX());
        System.out.println(q.p2.getY());

        Retangulo r = new Retangulo(5, 5, 10, 0);
        System.out.println(r.area());
    }

}