package test;

import java.util.ArrayList;
import java.util.List;

public class test {

	public static void main(String[] args) {
		ArrayList<Figura> f = new ArrayList<Figura>();
		f.add(new Kvadrat());
		f.add(new Kocka());
		for(Figura x : f) {
			System.out.println(x.jaSam());
			System.out.println(x.povrsina());
		}
	}
}
abstract class Figura
{
    private String naziv;

    public abstract double povrsina();
    
	public String jaSam()
    {
        return "Ja sam figura";
    }
	public String getNaziv() {
		return naziv;
	}
	public void setNaziv(String naziv) {
		this.naziv = naziv;
	}
}
class Kvadrat extends Figura {
    private int stranica = 3;
    
    public double povrsina() {
    	return stranica * stranica;
    }
    
	public String jaSam() {
    	return super.jaSam() + " tipa Kvadrat";
    }
	
    public int getStranica() {
		return stranica;
	}
	public void setStranica(int stranica) {
		this.stranica = stranica;
	}
}

class Kocka extends Figura {
    private int ivica = 3;
    
    public double povrsina() {
    	return Math.pow(ivica, 3);
    }
    
	public String jaSam() {
    	return super.jaSam() + " tipa Kocka";
    }
	
    public int getStranica() {
		return ivica;
	}
	public void setStranica(int ivica) {
		this.ivica = ivica;
	}
}