/* Trida Uzivatel je public, musi byt v souboru Uzivatel.java
*/

public class Uzivatel
{ public static void main(String[] args)
  { Bod x,y;
    Obrazec f;
    Ctverec r;
    Kruh c;
	Obrazec pole[ ] = new Obrazec[3];
    x = new Bod(0,0);
    y = new Bod(1,-1);
    r = new Ctverec(x,1,1);
    c = new Kruh(y,1);
    f = r;
	pole[0] = r;
	pole[1]= c;
	pole[2] = new Ctverec(y, 5, 2);
    System.out.println(f.plocha());
	f = c;
    System.out.println(f.plocha());
	for (int i=0; i < pole.length; i++)
		System.out.println(pole[i].plocha());
  }
}