TROJKATY JAVA ZIOMEK

package figury;


public class Trojkat {

    private double xA,yA,xB,yB,xC,yC;
    private double a = obliczBok(xA,yA,xB,yB);
    private double b = obliczBok(xB,yB,xC,yC);
    private double c = obliczBok(xA,yA,xC,yC);

    public Trojkat(double xA,double yA, double xB,double yB,double xC, double yC) {
        this.xA = xA;
        this.xB = xB;
        this.xC = xC;
        this.yA = yA;
        this.yB = yB;
        this.yC = yC;
    }

    public Trojkat() {
        this(0,0, 1,0, 1,1);
    }

    private double obliczBok(double x1, double y1, double x2, double y2) {
        double bok = Math.sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1));
        return bok;
    }

    public double podajPole() { //POLE LICZONE WZOREM HERONA
        double p = 0.5 * (a+b+c);
        double pole = Math.sqrt(p*(p-a)*(p-b)*(p-c));
        return pole;
    }

    public void rysuj() {
        System.out.println("TROJKAT:");
        System.out.println("Wspolrzedne A: (" + xA + "," + yA + "); ");
        System.out.println("Wspolrzedne B: (" + xB + "," + yB + "); ");
        System.out.println("Wspolrzedne C: (" + xC + "," + yC + "); ");
        System.out.println("Dlugosc bokow A,B,C: " + a + "," + b + "," + c);
    }
}