Point

package Zadanie1;

public class Point

{

  double x,y;

  public Point(double x1,double y1)

  {

 x=x1; y=y1;

  }

  public Point(){}

  public double dist(Point p1, Point p2)

  {

 double dx,dy,d;

 dx=p1.x-p2.x;

 dy=p1.y-p2.y;

 d=Math.sqrt(dx*dx+dy*dy);

 return d;

  }

  public double pole(double a, double b,double c,double e,double d)

  {

 double p,s;

 p=(a+b+c+e+d)/2;

 s=Math.sqrt(p*(p-a)*(p-b)*(p-c)*(p-e)*(p-d));

 return s;

  }

}